Master Spas MICHAEL PHELPS CHILLY GOAT COLD TUB User manual

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OWNER’S MANUAL
& LIMITED WARRANTY

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Welcome to the Chilly GOAT community!
MICHAEL PHELPS CHILLY GOAT™ COLD TUB
BY MASTER SPAS OWNER’S MANUAL
Thank you for choosing your new Michael Phelps Chilly GOAT Cold Tub by Master Spas. For How-to
Videos and helpful tips on operating and maintaining your cold tub, please visit
https://ChillyGOATtubs.com/pages/owners-manual.
Please read the entire Owner’s Manual before installing and using your cold tub. The goal of this
manual is to provide you with safety and operational information plus some tips that will help you
enjoy your cold tub to its fullest. At the time of print, this manual is accurate in its information.
Master Spas reserves the right to change or improve its product without prior notice.
REGISTER YOUR SPA
Please be sure to register your cold tub so we can eciently assist with any questions
you may have. Until your cold tub has been registered Master Spas will not have record of
your ownership. To register your cold tub, visit https://ChillyGOATtubs.com/pages/owners-manual
and click on Spa Registration.
SERIAL NUMBER LOCATION
The serial number for your cold tub is located near the filter area, on the cold tub system pack, or
on the listing plate on the cold tub frame behind the front skirt panel. It begins with “T”, followed by
6 digits. For example, T231234.
RECORD OF OWNERSHIP
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Address ������������������������������������������������������������������������
City ���������������������������� State ��������� Zip ���������������������
Phone �������������������������� Date Purchased ����������������������������
Model �������������������������� Serial ������������������������������������
Dealer Name ���������������������������������������������������������������������
Service Tech Rep ������������������������������������������������������������������
Scan the QR code to download
digital owner’s manual

TABLE OF CONTENTS
Safety Instructions........................................................................................................................... 1-5
Glossary of Chilly GOAT Terminology ..................................................................................... 5-8
Water Chemistry Terms You Should Know ...........................................................................9-10
Why Are Chemicals Important in a Chilly GOAT .....................................................................10
Water Maintenance .......................................................................................................................11-21
Recommended Ranges ...................................................................................................................11
Start-Up ......................................................................................................................................11-12
Schedule.....................................................................................................................................12-13
Regular Maintenance Procedures........................................................................................... 14-20
Chilly GOAT Troubleshooting Guide ........................................................................................... 21
Winterizing & Storing Your Chilly GOAT .................................................................................. 22
Model Specifications........................................................................................................................ 23
Installation Instructions.............................................................................................................24-30
Site Preparation/General Guidelines ....................................................................................24-25
Electrical Requirements ..........................................................................................................25-27
Initial Chilly GOAT Setup .......................................................................................................28-30
Clim8zone Heat Pump Controls .............................................................................................30-34
Limited Warranty........................................................................................................................ 35-37
Chilly GOAT Care & Maintenance Record...........................................................................38-40

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SAVE THESE INSTRUCTIONS
Included with your new Chilly GOAT™ is a
safety sign. The sign is for you and your guest’s
protection and is suitable for outdoor use in
wet locations. The sign should be placed in a
location visible to all users of the Chilly GOAT.
Please take time to point out the physical
location of the safety sign and the importance
of the safety precautions displayed on the
safety sign to all of your guests. Remember,
your safety and the safety of anyone who
enjoys the use of your Chilly GOAT is our
utmost concern.
The sign should be mounted with screws or
another type of permanent fastener. Additional
or replacement signs can be obtained from
your dealer or direct from the factory.
INTRODUCTION
It’s time to Chill! You now have your very own
Michael Phelps Chilly GOAT™ Cold Tub made
by Master Spas. By fully understanding the
operation of each of the features of your new
Chilly GOAT, you will enjoy many years of
revitalizing, cold-water therapy and fun.
Your safety is of paramount importance to
the Chilly GOAT. We urge you to carefully
read, understand, and follow all information
in this user manual before installing and using
the cold tub. These warnings, instructions, and
safety guidelines address some common risks
of water recreation, but they cannot cover
all risks and dangers in all cases. Always use
caution, common sense, and good judgment
when enjoying any water activity. Retain this
information for future use.
IMPORTANT SAFETY
INSTRUCTIONS
When installing and using this electrical
equipment, basic safety precautions should be
observed including the following:
READ AND FOLLOW
ALL INSTRUCTIONS
WARNING: To reduce the risk of injury, do not
permit children to use this product unless they
are closely supervised at all times.
A wire connector is provided on this unit to
connect a minimum 10AWG (5.26mm²) solid
copper conductor between this unit and any
metal equipment, metal enclosures of electrical
equipment, metal water pipe, or conduit within
5 feet (1.5m) of the unit.
(For cord-connected/convertible units)
DANGER: Risk of injury.
Replace damaged cord immediately.
Do not bury cord.
Connect to a grounded, grounding type
receptacle only.
(FOR UNITS WITH GFCI)
WARNING: This product is provided with a
ground-fault circuit interrupter located on the
plug end of the 120 volt power cord. The GFCI
must be tested before each use.
Next, push the test button on the GFCI. The
product should not operate. Now push the
reset button on the GFCI. The product should
now operate normally. When the product fails
to operate in this manner, there is a ground
current flowing indicating the possibility of an
electric shock. Disconnect the power until the
fault has been identified and corrected.
DANGER: Risk of Accidental Drowning.
Extreme caution must be exercised to prevent
unauthorized access by children. To avoid
accidents, ensure that children cannot use this
Chilly GOAT™ unless they are supervised at
all times.
DANGER: Risk of Injury. The suction fittings
in this Chilly GOAT are sized to match the
specific water flow created by the pump.
Should the need arise to replace the suction
fittings or the pump, be sure that the flow rates
are compatible. Never operate Chilly GOAT
if the suction fittings are broken or missing.
Never replace a suction fitting with one rated
less than the flow rate marked on the original
suction fitting.
SAFETY INSTRUCTIONS

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DANGER: Risk of Electric Shock. Install at
least 5 feet (1.5m) from all metal surfaces.
As an alternative, a Chilly GOAT may be
installed within 5 feet of metal surfaces if each
metal surface is permanently connected by
a minimum 10AWG (5.26mm²) solid copper
conductor to the wire connector on the
terminal box that is provided for this purpose.
Be sure to review and comply with any
overruling local or national
applicable regulations.
DANGER: Risk of Electric Shock. Do not
permit any electric appliance, such as a light,
telephone, radio, or television, within 5 feet
(1.5 m) of a Chilly GOAT.
WARNING: To reduce the risk of injury:
a. The water in a Chilly GOAT should never
exceed 104°F (40°C). Water temperatures
between 100°F (38°C) and 104°F (40°C) are
considered safe for a healthy adult. Lower
water temperatures are recommended for
young children when Chilly GOAT water
use exceeds 10 minutes. Persons with any
medical condition should seek medical
advice before using a Chilly GOAT.
b. Since excessive water temperatures have
a high potential for causing fetal damage
during the early months of pregnancy,
pregnant or possibly pregnant women
should limit Chilly GOAT water temperatures
to 100°F (38°C) and duration of use and
should also seek medical advice.
c. Before entering a Chilly GOAT, the user
should measure the water temperature with
an accurate thermometer since the
tolerance of water temperature-
regulating devices varies.
d. The use of alcohol, drugs, or medication
before or during Chilly GOAT use may lead
to unconsciousness with the possibility
of drowning.
e. Obese persons and persons with a history
of heart disease, low or high blood pressure,
circulatory system problems, or diabetes
should consult a physician before using a
Chilly GOAT.
f. Persons using medication should consult a
physician before using a Chilly GOAT since
some medication may induce drowsiness
while other medication may aect heart
rate, blood pressure, and circulation.
SAFETY INSTRUCTIONS CONT. This Chilly GOAT tub enables the user to
determine the temperature and duration for
which they are immersed in the Chilly GOAT.
Before using a Chilly GOAT tub, you should
always ask a qualified professional if use of this
Chilly GOAT is safe and appropriate for you.
SAVE THESE
INSTRUCTIONS
HYPERTHERMIA
Hyperthermia occurs when the internal
temperature of the body reaches a level several
degrees above the normal body temperature
of 98.6°F (37°C). Prolonged immersion in hot
water may induce hyperthermia.
THE SYMPTOMS OF
HYPERTHERMIA INCLUDE:
• Dizziness
• Fainting
• Drowsiness
• Lethargy
• Increase in Internal Body Temperature
THE EFFECTS OF
HYPERTHERMIA INCLUDE:
• Unawareness of Impending Hazard
• Failure to Perceive Heat
• Failure to Recognize the Need to Exit
Chilly GOAT
• Physical Inability to Exit Chilly GOAT
• Fetal Damage in Pregnant Women
• Unconsciousness Resulting in a Danger
of Drowning
WARNING: The use of alcohol, drugs, or
medication can greatly increase the risk
of Hyperthermia.
HYPOTHERMIA
Hypothermia occurs when the internal
temperature of the body reached a level
several degrees below the normal body
temperature of 98˚ F (37˚ C). Prolonged
immersion in cold water may
induce hypothermia.
THE SYMPTOMS OF
HYPOTHERMIA INCLUDE:
• Shivering
• Slurred speech or mumbling
• Slow shallow breathing
• Weak pulse

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SAFETY INSTRUCTIONS CONT.
• Clumsiness
• Drowsiness
• Confusion
• Unconsciousness
• Bright red, cold skin (in infants)
THE EFFECTS OF
HYPOTHERMIA INCLUDE:
• Failure of the nervous system
• Respiratory system and heart
• Failure to recognize the need to exit the
Chilly GOAT™ cold tub
• Unawareness of impending hazard
• Fetal damage in pregnant women
• Physical inability to exit the Chilly GOAT
• Unconsciousness resulting in the danger
of drowning
WARNING: The use of alcohol, drugs, or
medication can greatly increase the risk
of hypothermia.
DANGER: To reduce the risk of injury to
persons, do not remove the suction grate.
Suction through drains and skimmers is
powerful when the jets in the Chilly GOAT are
in use. Damaged covers can be hazardous to
small children and adults with long hair. Should
any part of the body be drawn into these
fittings, turn o the Chilly GOAT immediately.
As a precaution, long hair should not be
allowed to float in the Chilly GOAT.
WARNING: Install the Chilly GOAT so
that water can be easily drained out of
the compartment containing electrical
components so as not to damage equipment.
When installing the Chilly GOAT make sure to
allow for an adequate drainage system to deal
with any overflow water. Please allow for at
least 2’ of clearance around the perimeter of
the Chilly GOAT to provide enough room to
access for servicing. Please keep in mind the
front panel will require more space for proper
ventilation. Please contact the Chilly GOAT
support line for questions or service needs.
WARNING: The Chilly GOAT should be
covered with an approved locking cover when
not in use, to prevent unauthorized entry
and injuries.
WARNING: People with infections, sores or
the like should not use the Chilly GOAT. Warm
and hot water temperatures may allow the
growth of infectious bacteria if not properly
disinfected.
CAUTION: Safe temperatures for swimming or
aquatic exercise is around 80F (26C).
CAUTION: Replace components only with
identical components.
WARNING: Risk of Electric Shock. Do not
connect any auxiliary components (for
example, additional speakers, headphones,
additional audio/video components etc.) to
the system. These units are not provided with
an outdoor antenna.
Unless you are qualified and knowledgeable
to work with the electrical products and its
components, do not service this product
yourself. Opening or removing covers may
expose you to dangerous voltage or other
hazards. If you are not experienced with
home power, wiring, electrical components
and troubleshooting; contact a qualified
service technician. If the power supply cord(s)
are damaged, water is entering the speaker,
audio compartment, or any other component
in the electrical equipment compartment
area, the protective shield is showing signs
of deterioration, or there are signs of other
potentially hazardous damage to the unit, turn
o the circuit breaker from the wall and refer
servicing to qualified personnel.
The unit should be subjected to periodic
routine maintenance once every quarter to
make sure that it is operating properly.
DANGER: Risk of Electric Shock. A green
colored terminal or a terminal marked G, GR,
Ground, Grounding or the symbol shown
in Figure 14.1 of UL 1563 is located inside the
supply terminal box or compartment. To
reduce the risk of electric shock, this terminal
must be connected to the grounding means
provided in the electric supply service panel
with a continuous copper wire equivalent in
size to the specifications called out in the latest
version of the National Electrical Code, or your
local authority having jurisdiction.
At least two lugs marked “Bonding Lugs”
are provided on the external surface or on
the inside of the supply terminal box or
compartment. To reduce the risk of electric
shock, connect the local common bonding
grid in the area of the Chilly GOAT™ to these
terminals with an insulated or bare copper
conductor not smaller than 10AWG.

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SAFETY INSTRUCTIONS CONT.
All field installed metal components such as
rails, ladders, drains, or other similar hardware
within 10 feet (3m) of the Chilly GOAT shall be
bonded to the equipment grounding bus with
copper conductors not smaller than 10AWG.
SAVE THESE
INSTRUCTIONS
WARNING: CHILDREN SHOULD NOT USE
CHILL GOAT WITHOUT ADULT SUPERVISION.
AVERTISSEMENT: NE PAS LAISSER LES
ENFANTS UTILISER UNE CUVE DE RELAXATION
SANS SURVEILLANCE.
WARNING: DO NOT USE CHILLY GOAT
UNLESS ALL SUCTION GUARDS ARE
INSTALLED TO PREVENT BODY AND HAIR
ENTRAPMENT.
AVERTISSEMENT: POUR ÉVITER QUE LES
CHEVEUX OU UNE PARTIE DU CORPS
PUISSENT ETRE ASPIRES, NE PAS UTILISER UNE
CUVE DE RELAXATION SI LES GRILLES DI PRISE
D’ASPIRATION NE SONT PAS TOUTES
EN PLACE.
WARNING: PEOPLE USING MEDICATIONS
AND/OR HAVING AN ADVERSE MEDICAL
HISTORY SHOULD CONSULT A PHYSICIAN
BEFORE USING A CHILLY GOAT.
AVERTISSEMENT: LES PERSONNES QUI
PRENNENT DES MÉDICAMENTS OU ONT
DES PROBLÉMES DE SANTÉ DEVRAIENT
CONSULTER UN MÉDECIN AVANT D’UTILISER
UNE CUVE DE RELAXATION.
WARNING: PEOPLE WITH INFECTIOUS
DISEASES SHOULD NOT USE A CHILLY GOAT.
AVERTISSEMENT: LES PERSONNES ATTEINTES
DE MALADIES INFECTIEUSES NE DEVRAIENT
PAS UTILISER UNE CUVE DE RELAXATION.
WARNING: TO AVOID INJURY EXERCISE
CARE WHEN ENTERING OR EXITING THE
CHILLY GOAT.
AVERTISSEMENT: POUR ÉVITER DES
BLESSURES, USER DE PRUDENCE EN ENTRANT
DANS UNE CUVE DE RELAXATION ET
EN SORTANT.
WARNING: DO NOT USE DRUGS OR
ALCOHOL BEFORE OR DURING THE USE OF A
CHILLY GOAT TO AVOID UNCONSCIOUSNESS
AND POSSIBLE DROWNING.
AVERTISSEMENT: POUR ÉVITER
L’ÉVANOUISSEMENT ET LA NOYADE
ÉVENTUELLE, NE PRENDE NI DROGUE NI
ALCOOL AVANT D’UTILISER UNE CUVE DE
RELAXATION NI QUAND ON S’Y TROUVE.
WARNING: PREGNANT OR POSSIBLY
PREGNANT WOMEN SHOULD CONSULT A
PHYSICIAN BEFORE USING A CHILLY GOAT.
AVERTISSEMENT: LES FEMMES ENCEINTES,
QUE LEUR GROSSESSE SOIT CONFIRMÉE
OU NON, DEVRAIENT CONSULTER UN
MÉDECIN AVANT D’UTILISER UNE CUVE DE
RELAXATION.
WARNING: WATER TEMPERATURE IN
EXCESS OF 38°C MAY BE INJURIOUS TO
YOUR HEALTH.
AVERTISSEMENT: IL PEUT ETRE DANGEREUX
POUR LA SANTÉ DE SE PLONGER DANS DE
L’EAU A PLUS DE 38°C.
WARNING: BEFORE ENTERING THE CHILLY
GOAT MEASURE THE WATER TEMPERATURE
WITH AN ACCURATE THERMOMETER.
AVERTISSEMENT: AVANT D’UTILISER
UNE CUVE DE RELAXATION MESURER LA
TEMPÉRATURE DE L’EAU A L’AIDE D’UN
THERMOMÉTRE PRÉCIS.
WARNING: DO NOT USE A CHILLY
GOAT IMMEDIATELY FOLLOWING
STRENUOUS EXERCISE.
AVERTISSEMENT: NE PAS UTILISER UNE CUVE
DE RELAXATION IMMÉDIATEMENT APRÉS UN
EXERCISE FATIGANT.
WARNING: PROLONGED IMMERSION IN A
CHILLY GOAT MAY BE INJUROUS TO
YOUR HEALTH.
AVERTISSEMENT: L’UTILISATION PROLONGÉE
D’UNE CUVE DE RELAXATION PEUT ETRE
DANGEREUSE POUR LA SANTÉ.
WARNING: DO NOT PERMIT ELECTRIC
APPLIANCES (SUCH AS LIGHT, TELEPHONE,
RADIO, OR TELEVISION) WITHIN 1.5 M OF THIS
CHILLY GOAT.
AVERTISSEMENT: NE PAS PLACER D’APPAREIL
ÉLECTRIQUE (LUMINAIRE, TÉLÉPHONE, RADIO,
TÉLÉVISEUR, ETC) A MOINS DE 1.5 M DE CETTE
CUVE DE RELAXATION.
CAUTION: MAINTAIN WATER CHEMISTRY
IN ACCORDANCE WITH MANUFACTURER’S
INSTRUCTION.

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SAFETY INSTRUCTIONS CONT.
ATTENTION: LA TENEUR DE L’EAU EN
MATIÉRES DISSOUTES DOIT ETRE CONFORME
AUX DIRECTIVES DU FABRICANT.
Hyperthermia occurs when the internal
temperature of the body reaches a level several
degrees above the normal body temperature of
98.6°F (37°C). The symptoms of hyperthermia
include drowsiness, lethargy, and an increase
in the internal temperature of the body. The
eects of hyperthermia include:
a. Unawareness of impending hazard;
b. Failure to perceive heat;
c. Failure to recognize the need to exit
Chilly GOAT™;
d. Physical inability to exit Chilly GOAT;
e. Fetal damage in pregnant women; and
f. Unconsciousness and danger of drowning.
Hypothermia occurs when the internal
temperature of the body reaches a level several
degrees below the normal boy temperature
of 98˚ F (37˚ C). Prolonged immersion in cold
water may induce hypothermia. The aects of
hypothermia include:
a. Failure to the nervous system
b. Failure of the respiratory system and heart
c. Failure to recognize the need to exit the
Chilly GOAT or cold tub
d. Unawareness of impending hazard
e. Fetal damage in pregnant women
f. Physical inability to exit the Chilly GOAT
g. Unconsciousness resulting in drowning
WARNING: THE USE OF ALCOHOL OR DRUGS
CAN GREATLY INCREASE THE RISK OF FATAL
HYPERTHERMIA AND HYPOTHERMIA IN HOT
TUBS, COLD TUBS AND SPAS.
AVERTISSEMENT: LA CONSOMMATION
D’ALCOOL OU DE DROGUES PEUT
AUGMENTER CONSIDÉRABLEMENT LE RISQUE
D’HYPERTHERMIE ET.
GLOSSARY OF TERMINOLOGY
These are some terms and definitions to help
get you acquainted with your cold tub.
1. ACCESS PANELS
These are the skirt panels located around
all four sides of the cold tub. All of the skirt
panels are removable should service be
required. Master Spas recommends at least
2’ of access be provided around the cold tub.
Keep in mind 6’ of open space is necessary,
on the front long side, for proper heat pump
output ventilation.
2. CIRCULATION PUMP
This small, ecient pump typically runs 24
hours for ecient filtration and provides
flow for heat pump operation to cool or heat
the water.
CIRCULATION PUMP

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GLOSSARY OF TERMINOLOGY CONT.
3. HEAT PUMP
This device provides heating and cooling
capabilities to cool or heat the water to
the desired temperature. The heat pump is
sometimes referred to as the chiller.
4. HEAT PUMP CONTROL PANEL
This panel is located on the outside of the heat
pump, which is located inside the cabinet and
equipment area. Turning the heat pump on or
o, setting the water temperature and other
functions can be controlled from this panel.
The digital display will give you a temperature
readout and will notify you in case of certain
operational messages or errors.
5. HEAT PUMP UNIONS
Heat Pump Unions are used to connect the
plumping to the heat pumps. These are used
to help service personnel to easily service the
heat pump.
6. SLICE VALVES (if equipped)
These valves are used to shut o water to the
heat pump and circulation pump, so the cold
tub water does not need to be drained if the
cold tub requires service (varies by model).
NOTE: Slice valves must be completely open
during normal operations.
HEAT PUMP
HEAT PUMP CONTROL PANEL
HEAT PUMP UNIONS
SLICE VALVES

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10. SKIMMER FILTER HOUSING
This skimmer assembly provides water flow
to the circulation pump and houses the filter.
The front skimmer faceplate portion can be
removed, to allow access to the filter element.
GLOSSARY OF TERMINOLOGY CONT.
7. BALL VALVE (If equipped)
This valve is used when filling and draining your
system. Turning the handle opens and closes
the valve to allow or retrict/shut o water flow.
This must be opened when filling and draining
your cold tub. When full and operating, this
valve needs to be in the closed position to
ensure proper flow through the heat pump.
Opening this valve during filling helps prevent
the circ pump from air locking, preventing
unwarranted damage. While draining, opening
this valve allows most all water to naturally exit
the circ pump and heat pump.
8. DRAIN VALVE
The drain valve will be secured with a beaded,
reusable zip tie. It will be secured up high, on
the frame where the valve assembly is above
normal water level. After use, always re-secure
it up high, above water level to preven possible
unwarranted freeze damage.
9. CIRCULATION JETS
These jets provide the output for the
circulation pump and flow for heat pump
operation. The circulation jets also play a
crucial role in providing a cold-water immersion
experience. Water movement across the user
prevents your body warmth from creating a
warm water layer just over your skin, making the
water feel warmer than it is. By circulating water
over the user, it prevents that warmer water
layer from developing, resulting in the user
experiencing the full water set temperature.
CIRCULATION JETS
SKIMMER FILTER HOUSING
DRAIN VALVE
BALL VALVE

8
GLOSSARY OF TERMINOLOGY CONT.
11. POWER DISTRIBUTION PACK
This houses and distributes the power to the
electrical components. (oering terminals
for the GFCI power cord, connectors for
the electrical compenents and fuses for the
component circuits.)
THERMOMETER
POWER DISTRIBUTION PACK
LID OF POWER DISTRIBUTION BOX
12. THERMOMETER
This is a floating thermometer, provided in you
luggage kit. It needs to be tethered within the
unit and left floating in the water, so that users
can check the water temperature
before entering.

9
WATER CHEMISTRY TERMS
YOU SHOULD KNOW
Before jumping into Water Maintenance, here
are some terms to help you.
1. PARTS PER MILLION (PPM):
This is a form of measurement used in most
pool or cold tub chemical readings. Best
described as any one million like items of equal
size and make up, next to one unlike item, but
of equal size. This would be one part
per million.
2. TOTAL ALKALINITY (TA):
Measures substances in your water such as
hydroxides, carbonates, and bicarbonates.
When at the proper levels, these elements
keep your water from clouding and growing
bacteria, as well as prevent the inner workings
of your Chilly GOAT™ from deteriorating or
forming scale. TA also helps to stabilize pH.
The higher the TA level (when it is within the
recommended range), the less likely the pH
is to change. With low alkalinity, the pH will
fluctuate and be harder to control. With high
alkalinity, it becomes extremely dicult to
change the pH.
3. PH OR POTENTIAL HYDROGEN:
This indicates the acidity or basicity of the
water. The goal is to have a neutral, stable pH
to prevent cold tub damage and unhealthy
conditions. Low pH levels can corrode metals,
etch or stain fiberglass or acrylic, cause
unsanitary conditions that irritate the eyes or
skin, and derail the total alkalinity of the water.
High pH can cause cloudy water, eye or skin
irritation, scale formation and poor chlorine or
bromine eciency. Note that the chemicals
you are using to sanitize and clean your cold
tub can also lower or raise the pH level in
the water. There are many variables involved
preventing high pH in your cold tub.
4. SHOCKING:
By shocking the water in your cold tub, you
remove organic compounds from the water, kill
bacteria, remove chloramines, and reactivate
the bromides in the Chilly GOAT for cleaner
water. You should shock your water once a
week, after heavy bather use or any time free
chlorine levels test lower than total chlorine
levels. To do this, either add oxidizer/non-
chlorine shock to burn o the chloramines or
add extra chlorine to raise the chlorine level.
Oxidizer/non-chlorine shock acts by releasing
oxygen in the water, which serves a similar
function as chlorine. An advantage to using
this type of shock is that the water is safe
to enter after 15 minutes of the application
and excessive sanitizer (chlorine) levels do
not occur. However, an oxidizer/non-chlorine
shock doesn’t disinfect the water for bacteria.
If you use chlorine to shock, you must wait
until the total chlorine reading is at a level safe
to reenter the water.
5. SEQUESTERING:
This can be defined as the ability to form a
chemical complex which remains in solution,
despite the presence of a precipitating agent
(i.e. calcium and metals). If the minerals and
metals in water are not sequestered, they can
cause a reaction, turning the water brown,
red, orange, or green depending on the
minerals and metals present in your water.
It is important to add a sequestering agent
when adding water to your Chilly GOAT and
even on a regular basis (if bottle instructions
recommend doing so). Common names for
sequestering chemicals are: Minquest, Stain
and Scale Control, Metal-X, Spa Defender, Spa
Metal Gone, etc.
6. FILTRATION:
Filters are necessary to remove particles of
dust, dirt, algae, etc., that are continuously
entering the water. If the Chilly GOAT is not
operated long enough each day for the filter
to do a proper job, this puts a burden on the
chemicals, causing extra expense. Filtration
time will depend on the water capacity, pump,
and filter size and, of course, bather load. Spare
filter cartridges should be kept on hand to
make it easy to frequently clean the cartridge
without the need for a long shut down. This
will also allow the cartridge to dry out between
usages, which can double the life span of
the filter. Replace the cartridge when the
pleats begin to deteriorate. Cartridge cleaning
should be done a minimum of once a month.
More often with a heavy bather load. See
Cleaning Your Filter Elements in the Regular
Maintenance section.

10
WATER CHEMISTRY TERMS YOU SHOULD KNOW CONT.
7. SANITIZERS:
Germs and bacteria enter the water from the
environment and the human body; a sanitizer
keeps the water balanced and safe to use.
Chlorine can be used as sanitizer to create a
healthy water environment
Chlorine
1. Only one type is approved for Chilly
GOAT™ use. Sodium Dichlor which is a
granular, fast dissolving pH
neutral chlorine.
2. Chlorine is an immediate sanitizer and
will be added as needed to maintain free
chlorine levels.
NOTE: Bromine is not recommended in
the Chilly GOAT™ because it will cause
premature deterioration to the Non-Slip
mats used in the cold tub.
8. TOTAL DISSOLVED SOLIDS (TDS):
Materials that have been dissolved by the
water, i.e. like what happens when you put
sugar in coee or tea.
9. USEFUL LIFE OF WATER (IN DAYS):
Water should be drained at least once every
180 days. Useful life may vary by usage and
bather load.
10. DEFOAMER:
A chemical used to temporarily reduce
foaming. Causes of foaming include body oils,
cosmetics, lotions, surface cleaners, high pH or
algae, as well as other organic materials. Low
levels of calcium or sanitizer can also cause
increased foaming. Note that you may need to
physically remove the foam and/or drain all or
a portion of your water to remove or dilute the
causes of the foam.
11. CALCIUM HARDNESS:
This measurement tells you how much
magnesium and calcium are in your water.
However, calcium hardness can react with
all the chemicals, bacteria, dirt and other
substances that your water dissolves and get
thrown out of balance. Just like the other
elements, calcium levels must remain balanced
and need to be monitored or you run the
risk of metal deterioration, water foaming or
clouding and scale formation at the surface of
your water.
12. BIOFILM:
This is any group of microorganisms in which
cells stick to each other and often these cells
adhere to a surface (i.e., Chilly GOAT plumbing
and shell). Biofilm can occur over time during
the use of your Chilly GOAT.
WHY ARE CHEMICALS IMPORTANT
EVAPORATION:
As water evaporates, only pure water
evaporates, leaving the salts, minerals, metals,
and any unused chemicals behind. Adding
water adds more salts, minerals, and metals.
In time, the water can become saturated with
these dissolved solids and can cause stains or
scale to form on the walls of the Chilly GOAT
or a scale build up inside the equipment.
Colored or cloudy water and possible corrosion
of plumbing and fittings may also occur.
HEAT:
Heat causes much quicker evaporation and will
cause minerals and metals to precipitate out
of solution.
AIR:
Dust and other airborne contaminants are
introduced into the Chilly GOAT.
ENVIRONMENT:
The environment surrounding the Chilly GOAT
can also impact the water quality. Items such as
pollen, grass, sand, dirt, lawn fertilizer, airborne
dust, insects, leaves, and pets can all aect the
water quality of the Chilly GOAT.
BATHERS:
As the Chilly GOAT is used, bathers introduce
contaminants to the water. Increased bather
load, length of use and frequency will increase
the amounts of contaminants added into the
water.
NOTE: The maintenance routines set forth
in this manual may need to be adjusted
depending on bather load and how much the
Chilly GOAT is being used.

11
WATER MAINTENANCE
SCHEDULE
WATER CHEMISTRY GUIDE
AND RECOMMENDED RANGES
Before treating your water, refer to the Model
Specifications section of this manual for the
correct gallons of your cold tub, to ensure you
are adding the correct amount of chemicals.
PARAMETER VALUE a
Water Clarity Clear view of the bottom
Color of Water No color should be observed b
Total Alkalinity (TA) 80- 150 ppm
pH Value c,d 7.2 - 7.6
Chlorine 2- 4 ppm
Calcium Hardness 180- 250 ppm
When using alternative/additional disinfectants other appropriate parameters may be considered.
a. Consult national regulations and guidelines for any deviations.
b. Natural water sources may introduce water coloration.
c. Subject to the flocculant(s) used (if any).
d. When pH is greater than 7.5 the free active chlorine is less than 50 %.
NOTE: Recommended levels stated in this manual are based on industry standards for permanently installed and
portable residential spas. Improper use of chemicals may result in unsanitary and unsafe water conditions as well
as unwarranted discoloration, degradation, damage and other imperfections of the cold tub surface
and components.
The concentration of active ingredients in the
cold tub chemicals varies by manufacturer,
so always consult chemical manufacturer’s
instructions. When adding cold tub chemicals,
always spread them across the surface of the
water while the cold tub is circulating. See
chart below for recommended ranges.
NOTE: It is recommended to add chemicals
in smaller quantities and gradually build up
chemical levels than to add in a large amount
of product all at once.
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WATER MAINTENANCE
START UP
CHEMICAL START UP STEPS
1. Your Chilly GOAT™ should be filled with
fresh tap water using a Pre-filter, which can
be obtained from your retailer or Master
Spas direct. This Pre-filter will help remove
many of the minerals existing in the water,
which will make adjusting the water balance
easier after a new fill. Never use more than
50% softened water when filling the
Chilly GOAT.
2. During the initial filling of the Chilly GOAT,
add a sequestering agent to combat
suspended minerals in the water. The agents
are sold under many dierent names such as
Mineral Clear or Metal Protect. Always follow
the instructions listed on the bottle and
allow water to circulate and filter for at least
30 minutes (or per bottle recommendations)
before adding any other chemicals.
3. Test water for pH, total Alkalinity, and
Calcium hardness. There are two dierent
methods commonly used to test your water.
TEST STRIPS: Due to the negative eects
that cold water has on test strips; it is only
recommended to use liquid drop style
testing kit.
TESTING KIT: When using a testing kit, you
will be examining an actual water sample from

12
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your cold tub, rather than a strip. Be careful
to follow the instructions on your kit, filling
the container to the appropriate level and
then dropping the instructed liquid into the
container. Compare the new color of your
water to the key provided with the kit to
determine how to proceed. Depending on
which kit you purchase, it can test for each one
of these elements: total alkalinity, pH, chlorine,
and calcium hardness.
4. Adjust pH and total Alkalinity (TA) utilizing
the directions on the chemical bottles. Wait
15 minutes, test and adjust if necessary.
5. It may be necessary to retest and add
additional chemicals to get to the
proper levels.
6. Add Sanitize (sodium Dichlor-s-
triazinetreone) on initial start up to begin
sanitizing the Chilly GOAT™ water, according
WATER MAINTENANCE - START UP CONT.
to directions on chemical bottle. Bathers
should not enter the Chilly GOAT until
the chlorine drops to a safe level, refer to
Water Chemistry Guide in this section. It
is important not to add the chlorinating
granules until the pH and alkalinity have
been adjusted to their proper levels.
NOTE: See the Model Specifications section
of this manual for the correct gallons of your
Chilly GOAT, to ensure you are adding the
correct amount of chemicals. When adding
chlorine or
non-chlorine shock/ oxidizer always spread
it across the water while the Chilly GOAT
is circulating. The concentration of active
ingredients in chemicals varies
by manufacturer.
WATER MAINTENANCE
SCHEDULE
BEFORE EACH USE
Test the Chilly Goat water for proper pH and
sanitation levels. Adjust accordingly to the
proper levels outlined in the Water Chemistry
Guide, found in the Water Maintenance –
Recommended Ranges section. Appropriate
levels should be present before use of the
Chilly Goat. Bathers should not enter the Chilly
Goat if the chlorine levels are outside of the
safe, recommended ranges.
AFTER EACH USE
Test water and treat accordingly to maintain
proper pH and free chlorine levels for
continued sanitary conditions after use. The
amount of people using the Chilly Goat (and
duration of use) will deplete chlorine levels
and can cause free chlorine to test below total
chlorine, resulting in a more frequent need to
use an oxidizer/non-chlorine shock treatment.
3 TIMES A WEEK
Test the water using chemical test kit. Adjust
sanitizer, pH, and Alkalinity, accordingly,
following directions on the chemical
manufacturer’s packaging. If free chlorine
level measures less than total chlorine level,
additional non-chlorine shock/oxidizer
treatment is necessary.
ONCE A MONTH
Soak your filter elements overnight in a
container with Chilly Goat Filter Cleaner and
then rinse with clean water. For best results,
allow the filter to dry before re-inserting.
When cleaning filters, be sure to never have the
pumps (including the circulation pump) running
without the filters in place. Failure to do so may
result in debris being drawn into the pumps
causing unwarranted damage. See Cleaning
Your Filter Elements in the Maintenance
section of this manual for more information.

13
WATER MAINTENANCE - SCHEDULE CONT.
PROBLEM POSSIBLE CAUSES HOW TO FIX IT
CHLORINE
ODOR
Excessive chlorine Shock water with oxidizer/non-chlorine
shock treatment
Low pH
WATER ODOR
Low levels of sanitizer Adjust sanitizer level with chlorinating granules
pH out of range Adjust pH if necessary
Bacteria or algae growth If sanitizer has already been adjusted, it may be
necessary to perform a system flush
CLOUDY WATER
Dirty filters or
inadequate filtration Clean filters with filter cleaner and adjust filtration
(if possible)
Unbalanced water chemistry Test and adjust chemistry levels
Old water Drain, clean inner shell and refill with filtered water
CLOUDY AND
GREEN WATER
Total alkalinity levels are low Use a sequestering agent
Sanitizer levels are low Apply oxidizer/non-chlorine shock treatment and
adjust sanitizer
CLEAR GREEN
WATER
High iron or copper content Use a sequestering agent
Sanitizer levels are low Apply oxidizer/non-chlorine shock treatment
BROWN WATER High iron or manganese level Use a sequestering agent
FOAMING
High levels of body oils, lotions,
soap, etc. Add small amount of defoamer, an enzyme product and check water chemistry
Low calcium hardness Use a calcium hardness increaser
Unbalanced water chemistry Test and adjust chemistry levels
EYE OR SKIN
IRRITATION
Unsanitary water Adjust water chemistry according to testing results
Total chlorine level above 5
ppm Apply oxidizer/non-chlorine shock treatment
Poor sanitizer/pH levels Adjust pH level as necessary
SCUM DEPOSITS
AT WATERLINE Body oils and dirt Use multi-purpose cleaner to clean Chilly GOAT™
surface and add enzyme product to Chilly
GOAT water
CHALKY, WHITE
SCALE DEPOSITS
Minerals present in the water
and lack of sequestering
agent use
When tub is drained, use a multi-purose cleaner or
white vinegar and scrub with a soft cloth
PITTING OF
METAL FIXTURES Low pH or total alkalinity Check water chemistry and adjust
NOTE: Please refer to the Water Maintenance - Recommended Ranges section to review
recommended chemical levels.

14
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REGULAR MAINTENANCE PROCEDURES
DRAINING YOUR CHILLY GOAT™
Before you start draining your cold tub, be
sure all power is turned o to it. Your cold
tub requires periodic draining and cleaning
to ensure a safe, healthy environment. It is
recommended that you drain and clean your
cold tub at least every 180 days or as necessary.
Heavy use may require draining and cleaning
more often. Draining times will vary by model
when using the equipped internal drain
assembly. A sump pump may also be used to
expedite the draining of the cold tub.
Caution and careful planning should be taken
if draining in freezing temperatures to ensure
the process is performed quickly (by use of
a submersible pump) and that the water is
either refilled quickly again or winterization
steps are immediately performed. Try to plan
your regular draining maintenance during times
when temperatures are above freezing. Excess
water in the plumbing can freeze in a short
time frame depending on temperatures and
conditions. Water freezing within plumbing and
components can result in freeze damage which
is not warranted.
NOTE: When draining, you will want to
locate and open the ball valve located in the
equipment area between the circulation pump
and heat pump. The handle will be situated
perpendicular to the plumbing, when in the
closed position. In the open position, the
handle will be in line with the plumbing.
During draining, opening this valve will
allow most of the water to drain out of the
circulation pump and heat pump. The below
pictures show the ball valve, with the handle in
the closed position.
NOTE: These maintenance procedures are the responsibility of the cold tub owner to perform. These
procedures are not covered by the cold tub warranty.
STEPS FOR DRAINING YOUR
CHILLY GOAT
The cold tub comes equipped with a drain
fitting. This is in the main equipment area
which is on the side opposite the seat.
1. Remove the equipment area skirt panels by
removing screws from the vertical trim piece.
Lift up on the skirting panel and pull the
bottom out to remove the skirting panel.
2. Flex the plastic shroud barrier out and down
to gain access to see in to the equipment
area. Always place this shroud piece back in
its original state, when no longer needing
access in to equipment area. This protects
against any rain water ingress from the
cabinet intake vent.
EQUIPMENT SHROUD

15
3. Turn the ball valve handle to the open
position. Leave the valve open until after
filling. Only close this ball valve when filled,
before powering up the cold tub.
4. To start the flow of water from the drain
assembly; remove the cap, twist the face
counterclockwise and pull out slightly on
the face. A garden hose can be attached to
the end of the drain assembly, if desired, to
reroute the draining water away from
the area. When done draining, always
secure the drain valve back up to its original
position (up high on frame and above normal
water level).
NOTE: With the cap removed from the drain;
water may drip or weep from the drain. This is
normal. Be sure that the steps are followed in
reverse order when draining is finished. Make
sure that the drain cap is reattached and the
valve adusted to the fully closed position so
that there is no water leaking from the
drain assembly.
STEPS FOR USING A SUMP PUMP*
1. Carefully lower submersible pump with hose
connected into the bottom of cold tub,
taking care not to scratch or gouge your
Chilly GOAT™ shell.
2. Run the discharge end of the hose from
your submersible pump to a desired location
several feet away from your cold tub,
where the water will drain away from the
foundation that the cold tub is resting on.
3. Plug in/turn on your submersible pump.
4. Turn o/disconnect your submersible pump
once it is no longer able to suck up any
residual water (indicated by a suctioning
sound and water no longer coming out
of the drainage hose). If you plan to fully
wipe down and clean your entire cold tub
shell, a shop vac can be used to remove the
remaining small pockets of water in the
cold tub.
*Sump Pump is not provided with cold tub.
NOTE: These maintenance procedures are the responsibility of the cold tub owner to perform. These
procedures are not covered by the cold tub warranty.
NOTE: Always
put shroud back
in its original
position when
done accessing
equipment area,
as this helps
block any rain or
water intrustion
through the
instake vent.
REGULAR MAINTENANCE PROCEDURES CONT.
DRAIN VALVE

16
REGULAR MAINTENANCE PROCEDURES CONT.
SHELL SURFACE CARE
During use, always remove debris and
pollutants that have settled in the water or
built up on the cold tub surfaces as it occurs.
These pollutants can cause growth of bacteria,
algae, fungus, or biofilm if left on the cold tub
surface potentially causing stains.
Clean the cold tub shell, jets, and other
controls with a soft cloth and cold tub shell
cleaner to help remove residue and buildup on
the shell surface. For any remaining buildup,
white vinegar or mild scale remover product
may be necessary to use with a soft cloth for
removal. Consult with your retailer or Master
Spas Chilly GOAT support for further cleaning
instructionsor questions.
Rinse the cleaned surfaces with fresh water
from your garden hose and wipe with a soft
cloth as doing so will help to remove residual
cleaning agents (as some may cause foaming to
occur in the water once cold tub is refilled).
Always use an approved insulating cold tub
cover to cover your Chilly GOAT™ when not in
use, especially in outdoor installations where
the cold tub is exposed to weather conditions
and sun. Constant, prolonged exposure and use
of unapproved or non-insulating cold tub cover
can result in damage to the cold tub surface
which would not be warranted.
CARE OF YOUR SPA CABINET
The cold tub cabinet is made from a UV
resistant material. The cabinet requires only
periodic cleaning with a stream of water from
a garden hose. If necessary, use mild soap and
water with soft cloth to wipe down the cabinet
surface. Rinse thoroughly.
CLEANING YOUR
FILTER ELEMENTS
The filter elements are one of the most
important components of your cold tub. Not
only are the filters essential for clean water,
but they also extend the life of the cold tub
equipment and help avoid unnecessary water
changes in the cold tub. Your filter elements
should be cleaned on a regular basis, at least
once a month on average with normal usage.
The filters may need to be cleaned more
frequently if the cold tub is used heavily, the
NOTE: These maintenance procedures are the responsibility of the cold tub owner to perform. These
procedures are not covered by the cold tub warranty.
water quality is poor, or their is high dissolved
solid content in the water. It’s recommended to
allow filter elements to fully dry after cleaning.
For this reason, it is ideal to have a spare set of
filters on hand for filter cleaning intervals.
1. Turn o the cold tub before servicing filters.
Never leave the cold tub running when
removing the filters. Debris can be pulled
into the plumbing system and cause
unwarranted damage.
2. Remove filter element(s).
3. With a garden hose, spray each element
under pressure. Monthly, the standard
filter elements should be soaked in a filter
cleaner. Replace filter annually or as needed
(depending on water conditions, use and
cleaning, lifespan will vary).
FILTER WEIR WITH SLIDE OFF ACCESS
TURN FILTERS COUNTER-CLOCKWISE TO REMOVE

17
REGULAR MAINTENANCE PROCEDURES CONT.
CARE OF YOUR SPA COVER
Always cover your cold tub when not in use
with an approved insulating Chilly GOAT™
cover. Keep the cold tub cover on between
uses (but not while it is being used). This will
greatly reduce energy consumption and will
cause cold tub water to cool or heat more
rapidly. Water loss and chemical usage will also
be reduced.
• Ensure the cover is fitted tightly, as per
manufacturer’s instructions to maximize
insulation.
• Be sure to lock down all straps on the cover
after each use.
• Do not allow your cold tub to sit uncovered
in direct sunlight. The heat and UV from
direct sun exposure can cause damage to
exposed shell surfaces of the cold tub as
well as damage or discoloration of the cold
tub fittings.
• See cover manual instructions for detailed
instructions on proper cover care. Clean the
cover at least once a month using mild soap
and water. Rinse thoroughly with fresh water
to remove pollutants and soap residue.
If mold/mildew staining has occurred
(particularly on bottom of the cover), a
mixture of bleach and water used with a soft
cloth may be necessary. Thoroughly rinse
with fresh water after cleaning.
• Keep the cover open for 15 minutes after
adding chemicals to prevent excessive o
gas buildup and damage.
• When the cold tub is being used, the
cover should be placed in a clean, dry area,
otherwise it can pick up dirt and bacteria.
Covers should not be put on wooden tables
or wooden decking because of the risk of
bleaching the wood.
NOTE: If your cold tub is going to be left
empty for prolonged periods, do not place
cover directly on the cold tubs’s surface (closed
and sealed). Instead, place a 1” block of high-
density foam between the cover and the cold
tub. This allows for ventilation to help reduce
mold and mildew from occurring while the cold
tub is empty.
NOTE: The cover warranty is not part of the
limited warranty provided with the cold tub.
It is provided through the cover manufacturer
and may not be through Master Spas. Check
the tags and labeling on your cover to verify
manufacturer and refer to the manufacturer’s
care, maintenance, and warranty information.
Your retailer or Master Spas Chilly GOAT
support can help provide these details.
CARE OF STAINLESS STEEL
Master Spas uses stainless steel in many of
our products. Its lasting beauty and resistance
to corrosion make it an excellent material
for handrails and jets faces. With the proper
care it will keep its luster for many years. All
stainless steel can corrode given the right
circumstances, so we have provided a guide
to help you keep the stainless components
in your cold tub looking nice. Stainless steel
derives its ability to resist corrosion by forming
a very thin transparent coating on the surface
when exposed to oxygen. This coating can be
damaged by abrasive materials such as steel
wool or sand paper. Chlorine salts, sulfides, or
other rusting metals can also erode this thin
coating exposing the metal to corrosion. The
best defense to combat corrosion on stainless
steel components in your cold tub is to make
sure that it is kept clean and free of any
chemical build up.
ALWAYS:
• Clean frequently with fresh, clean water.
• Remove any rust spots as soon as they
appear with vinegar or a brass, silver, or
chrome cleaner.
• Use a good car cleaning wax for
extra protection.
NOTE: These maintenance procedures are the responsibility of the cold tub owner to perform. These
procedures are not covered by the cold tub warranty.
SLIDE FACEPLATE UP TO REMOTE