Master Spas MP Swim Spa User manual

OWNER’S MANUAL
& LIMITED WARRANTY
INTERNATIONAL VERSION

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MASTER SPAS OWNER’S MANUAL
Welcome to the Ultimate in Relaxation!
Thank you for choosing your new swim spa built by Master Spas. For how-to videos and helpful
tips on operating and maintaining your swim spa, please visit www.masterspas.com/resources.
Please read the entire Owner’s Manual before installing and using your swim spa. The goal of this
manual is to provide you with safety and operational information plus some tips that will help you
enjoy your swim spa 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 SWIM SPA
Please be sure to register your swim spa so we can efficiently assist with any questions you may
have. Until your swim spa has been registered, Master Spas will not have record of your ownership.
To register your swim spa, visit www.masterspas.com/resources and click on Spa Registration.
SERIAL NUMBER LOCATION
The serial number for your swim spa is located near the filter area, on the swim spa system pack,
or on the listing plate on the skirting. It will start with “H” followed by a 6 digit number. For
example, H191234.
RECORD OF OWNERSHIP
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Phone Number (������) ��������-����������� Date Purchased �������� /�������� /�����������
Model ��������������������������������� Serial #���������������������������������������
Dealer Name �������������������������������������������������������������������������
Service Tech Rep ����������������������������������������������������������������������
6927 Lincoln Parkway
Fort Wayne, IN 46804
masterspas.com
WATCH HOW-TO VIDEOS:
masterspas.com/video-tutorials

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TABLE OF CONTENTS
Safety Instructions.................................................................................................................. 2-10
Regulations............................................................................................................................ 11-13
Compliance................................................................................................................................. 14
VGB Suction Safety & Maintenance Instructions ............................................................... 15-16
Glossary of Spa Terminology............................................................................................... 17-19
The Advantages of EcoPur®Charge .................................................................................... 20-21
Water Chemistry Terms You Should Know........................................................................ 22-23
Why Are Chemicals Important in a Spa................................................................................... 24
Water Maintenance .............................................................................................................. 25-28
Recommended Ranges.......................................................................................................... 25
Start-Up ............................................................................................................................... 26
Schedule............................................................................................................................... 27
Troubleshooting Guide.......................................................................................................... 28
Regular Maintenance Procedures........................................................................................ 29-36
Spa Troubleshooting Guide ................................................................................................. 37-38
Winterizing & Storing Your Spa............................................................................................... 39
Model Specifications ................................................................................................................. 40
Installation Instructions........................................................................................................ 41-52
Site Preparation / General Guidelines ................................................................................ 41-43
Electrical Requirements .................................................................................................... 44-50
Initial Swim Spa Setup...................................................................................................... 51-52
Operating Instructions ....................................................................................................... 53-104
Spa Controls - Icon Spa Touch ......................................................................................... 53-83
Spa Controls - Pump Diagrams ........................................................................................ 84-86
Propulsion System Controls.............................................................................................. 87-97
Propulsion System Technical Information............................................................................... 98
Fusion Air Sound System (if equipped) ........................................................................... 99-103
Wave Lighting (if equipped) ................................................................................................ 104
Mast3rPurTM (if equipped) ................................................................................................ 105-107
SoftTreadTM Floor System by SwimDek®(if equipped) ......................................................... 108
International Limited Warranty....................................................................................... 109-112
Swim Spa Care & Maintenance Record.................................................................................. 113

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SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS
Included with your new swim spa 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 swim spa.
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 swim spa 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 relax! You now have your very own portable swim spa by Master Spas. By fully
understanding the operation of each of the features of your new Master Spas Swim Spa, you will
be assured of many years of hassle-free, hot water therapy and fun.
Your safety is of paramount importance to the Master Spas family. We urge you to carefully read,
understand, and follow all information in this user manual before installing and using the swim
spa. 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.
Through reading and totally understanding the important information in your owner’s manual,
you will realize that you now own THE ULTIMATE RELAXATION MACHINE!®
Safety graphical symbol ISO 7010, M002 –
Refer to instruction manual/booklet

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SAFETY INSTRUCTIONS
IMPORTANT SAFETY INSTRUCTIONS
This swim spa is not intended for public/commercial use.
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 conductor is provided on this unit to connect a minimum 6 AWG
(13.302mm2) 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.
a) Replace damaged cord immediately.
b) Do not bury cord.
c) Connect to a grounded, grounding type receptacle only.
(For units intended for indoor use only)
WARNING – For indoor use only. This unit is not intended for outdoor use.
(For units intended for outdoor use only)
WARNING – For outdoor use only. This unit is not intended for indoor use.

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SAFETY INSTRUCTIONS
IMPORTANT SAFETY
INSTRUCTIONS (CONT.)
(For units with GFCI)
WARNING – This product is provided with a ground-fault circuit interrupter
located on the front panel of selected swim spas and on the power cord of
120 volt convertible spas. The GFCI must be tested before each use. With
the product operating, open the service door. When the product stops
operating, this merely indicates that the door is equipped with an electrical
interlock. Next, push the test button on the GFCI and close the service door.
The product should not operate. Now open the service door, push the reset
button on the GFCI and close the service door. 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 swim spa unless they are supervised at all times.
DANGER – Risk of Injury. The suction fittings in this swim spa 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 swim spa 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.
DANGER – Risk of Electric Shock. Install at least 5 feet (1.5m) from all metal
surfaces. As an alternative, a swim spa may be installed within 5 feet of metal
surfaces if each metal surface is permanently connected by a minimum 8AWG
(8.4mm2) 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 swim spa.
WARNING – To reduce the risk of injury:
a) The water in a swim spa 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 and when swim spa use exceeds 10 minutes. Persons with any
medical condition should seek medical advice before using a swim spa.

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SAFETY INSTRUCTIONS
IMPORTANT SAFETY
INSTRUCTIONS (CONT.)
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 swim spa water temperatures to 100˚F (38˚C)
and duration of use and should also seek medical advice.
c) Before entering a swim spa, 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 swim spa 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 swim spa.
f) Persons using medication should consult a physician before using a swim
spa since some medication may induce drowsiness while other medication
may affect heart rate, blood pressure, and circulation.
(For swim spas with a gas heater)
WARNING – Risk of Suffocation. This swim spa is equipped with a gas
heater and is intended for outdoor use only unless proper ventilation can be
provided for an indoor installation.
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 Swim Spa • Physical Inability to Exit Swim Spa •
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.

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SAFETY INSTRUCTIONS
IMPORTANT SAFETY
INSTRUCTIONS (CONT.)
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 swim spa 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 off the
swim
spa immediately. As a precaution, long hair should not be allowed to float in the
swim spa.
WARNING – Install the swim spa so that water can be easily drained out of the
compartment containing electrical components so as not to damage equipment.
When installing the swim spa make sure to allow for an adequate drainage system
to deal with any overflow water. Please allow for at least 3 feet of clearance around
the perimeter of the swim spa to provide enough room to access for servicing.
Contact your local dealer for their specific requirements.
WARNING – The swim spa 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 swim spa.
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 80˚F
(26.7˚C).
CAUTION – Risk of Electrical Shock. Do not leave audio compartment open.
Audio CD controls are not to be operated while inside the swim spa.
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.
Do not service this product yourself as opening or removing covers may expose
you to dangerous voltage or other hazards. Refer all servicing to qualified service
personnel. 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 off the circuit
breaker from the wall and refer servicing to qualified personnel.
EN 17125 –Do not put finger in massage jet

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SAFETY INSTRUCTIONS
IMPORTANT SAFETY
INSTRUCTIONS (CONT.)
The unit should be subjected to periodic routine maintenance once every quarter to
make sure that the 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 circuit
conductors supplying this equipment.
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 swim spa
to these terminals with an insulated or bare copper conductor not smaller than
8AWG.
All field installed metal components such as rails, ladders, drains, or other similar
hardware within 10 feet (3m) of the swim spa shall be bonded to the equipment
grounding bus with copper conductors not smaller than 8AWG.
SAVE THESE INSTRUCTIONS

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SAFETY INSTRUCTIONS
WARNING: CHILDREN SHOULD NOT USE SWIM SPAS OR HOT TUBS WITHOUT ADULT
SUPERVISION.
AVERTISSEMENT: NE PAS LAISSER LES ENFANTS UTILISER UNE CUVE DE RELAXATION
SANS SURVEILLANCE.
WARNING: DO NOT USE SWIM SPAS OR HOT TUBS UNLESS ALL SUCTION GUARDS ARE
INSTALLED TO PREVENT BODY AND HAIR ENTRAPMENT.
AVERTISSEMENT: POUR ÉVITER QUE LES CHEVEUX OU UNE PARTIE DU CORPS
PUISSENT ÊTRE 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 SWIM SPA OR HOT TUB.
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 SWIM SPA OR HOT
TUB.
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 SWIM
SPA OR HOT TUB.
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 SWIM
SPA OR HOT TUB 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 SWIM SPA OR HOT TUB.
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 ÊTRE DANGEREUX POUR LA SANTÉ DE SE PLONGER DANS
DE L’EAU A PLUS DE 38˚C.
WARNING: BEFORE ENTERING THE SWIM SPA OR HOT TUB MEASURE THE WATER
TEMPERATURE WITH AN ACCURATE THERMOMETER.
AVERTISSEMENT: AVANT D’UTILISER UNE CUVE DE RELAXATION MESURER LA
TEMPÉRATURE DE L’EAU À L’AIDE D’UN THERMOMÉTRE PRÉCIS.

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SAFETY INSTRUCTIONS
WARNING: DO NOT USE A SWIM SPA OR HOT TUB IMMEDIATELY FOLLOWING
STRENUOUS EXERCISE.
AVERTISSEMENT: NE PAS UTILISER UNE CUVE DE RELAXATION IMMÉDIATEMENT
APRÉS UN EXERCISE FATIGANT.
WARNING: PROLONGED IMMERSION IN A SWIM SPA OR HOT TUB MAY BE INJUROUS TO
YOUR HEALTH.
AVERTISSEMENT: L’UTILISATION PROLONGÉE D’UNE CUVE DE RELAXATION PEUT
ÊTRE DANGEREUSE POUR LA SANTÉ.
WARNING: DO NOT PERMIT ELECTRIC APPLIANCES (SUCH AS LIGHT, TELEPHONE, RADIO,
OR TELEVISION) WITHIN 1.5 M OF THIS SWIM SPA OR HOT TUB.
AVERTISSEMENT: NE PAS PLACER D’APPAREIL ÉLECTRIQUE (LUMINAIRE, TÉLÉPHONE,
RADIO, TÉLÉVISEUR, ETC) À MOINS DE 1.5 M DE CETTE CUVE DE RELAXATION.
CAUTION: MAINTAIN WATER CHEMISTRY IN ACCORDANCE WITH MANUFACTURER’S
INSTRUCTION.
ATTENTION: LA TENEUR DE L’EAU EN MATIÉRES DISSOUTES DOIT ÊTRE 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 effects of
hyperthermia include:
(a) unawareness of impending hazard;
(b) failure to perceive heat;
(c) failure to recognize the need to exit swim spa;
(d) physical inability to exit swim spa;
(e) fetal damage in pregnant women; and
(f) unconsciousness and danger of drowning.
WARNING: THE USE OF ALCOHOL OR DRUGS CAN GREATLY INCREASE THE RISK OF
FATAL HYPERTHERMIA IN HOT TUBS AND SWIM SPAS.
AVERTISSEMENT: LA CONSOMMATION D’ALCOOL OU DE DROGUE AUGMENTE
CONSIDÉRABLEMENT LES RISQUES D’HYPERTHERMIE MORTELLE DANS UNE CUVE DE
RELAXATION.

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SAFETY INSTRUCTIONS
For swim spas relying on a specific means of egress, such means shall not be
removed when the swim spa is in use.
DANGER – Risk of Accidental Drowning (especially children under 5 years). Caution
shall be exercised to prevent unauthorized access to the swim spa by children. This
can be reached by an adult supervisor securing the means of access or installing a
safety protection device to the swim spa. To avoid accidents during swim spa use,
ensure that children are kept under constant adult supervision).
Avoid putting the head under water at all times.
Avoid swallowing swim spa water.
DANGER – No Diving.
Safety graphical symbol ISO 20712-1, WSM002 –Keep
children under supervision in the aquatic environment
Safety graphical symbol ISO 20712-1, WSP005 –No Diving

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REGULATIONS
Below are important requirements that you should be aware of prior to using and operating your
swim spa per European Standard EN 17125:2018.
MEANS OF ACCESS AND SWIM SPA ACCESSORIES
The steps in the swim area can be used to access the spa side with dual water body models such as
Trainer 19, Challenger 19 and Momentum.
All accessories that are supplied shall be safe and compatible with the swim spa as required by
section 4.3 of EN17125. The user can only use accessories exclusively provided by the swim spa
manufacturer (i.e. Master Spas manufactured insulating cover) for safety reasons (section 6.1 d).
Means of access is not provided with the swim spa. Accessories necessary for means of access
must meet European standard EN 17125. The type of means of access to the swim spa must be
considered (ingress and/or egress where not obvious). Access means can be either secured or
unsecured. See Accessory Manufacturer Specifications for the following:
• the commercial name or reference;
• an indication of the maximum allowable weight permitted on the means of access;
• illustrations repeating the overall dimensions of the product;
• stepping height and width of the wall, if appropriate for ingress and egress;
• if appropriate, any indication concerning the construction of onsite reinforcement works for
installing the means of access;
• the warranty period(s) of the means of access;
• Proper care instructions for winterization.
NOTE: A handrail may be proposed with the means of access in case of use by people with mobility
issues.
Consult manufacturer or contractor for proper care during winterization and to review maximum
weight allowed. Means of access shall not be used for any purpose besides for swim spa entry.
Stairs used for entry to the spa/swim spa must comply with section 4.6.4 of EN 17125.
A cover lifter, when applicable, should be designed to keep the cover off the ground when in use,
to avoid dirt and debris getting on the cover.
ELECTRICAL REQUIREMENTS OF SWIM SPA ACCESSORIES
Electrically operated accessories shall comply with electrical safety standards and regulations
(national and European). They must be assembled in accordance with the manufacturer’s manual.
The electrical installation of any material related to the swim spa and its surroundings shall comply
with national requirements.
SAFETY DEVICES
• A safety cover or other safety protection device(s) shall be used, or all doors and windows
(where applicable) shall be secured to prevent unauthorized access to the swim spa.
• Barriers, covers, alarms, or similar safety devices are helpful aids, but they are not substitutes
for continuous and competent adult supervision.
SAFETY EQUIPMENT
• It is recommended to keep rescue equipment (e.g. a ring buoy) by the swim spa (if
appropriate).
• Keep a working phone and a list of emergency phone numbers near the swim spa.
In compliance with EN 17125

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REGULATIONS
SAFE USE OF THE SWIM SPA
• Encourage all users especially children to learn how to swim.
• Learn Basic Life Support (Cardiopulmonary Resuscitation - CPR) and refresh this knowledge
regularly. This can make a life-saving difference in the event of an emergency.
• Instruct all swim spa users, including children, what to do in case of an emergency.
• Never dive into any shallow body of water. This can lead to serious injury or death.
• Do not use the swim spa when using alcohol or medication that may impair the bather’s ability
to safely use the swim spa.
• When covers are used, remove them completely from the water surface before entering the
swim spa.
• Protect swim spa occupants from water related illnesses by advising them to keep the water
treated and to practice good hygiene. Consult the water treatment guidelines in this manual.
• Store chemicals out of the reach of children.
• Use the signage provided on the swim spa or within 2 000 mm (78.74 in) of the swim spa in a
prominent visible position.
• Removable ladders, when removed, shall be stored safely where children cannot climb on
them.
NON SWIMMERS SAFETY
• Continuous, active, and vigilant supervision of weak swimmers and non-swimmers especially
in exercise swim spas, by a competent adult is required at all times (remembering that children
under five years of age are at the highest risk of drowning).
• Designate a competent adult to supervise the swim spa each time it is being used.
• Weak swimmers or non-swimmers should wear personal protection equipment, especially
when using the exercise swim spa.
• When the swim spa is not in use, or unsupervised, remove all toys from the swim spa and its
surrounding area to avoid attracting children to the swim spa.
PERMISSIBLE OPENINGS
Requirements on the size of the accessible openings shall be as follows.
OPENINGS PRESENTING A RISK OF ENTRAPMENT OF FINGERS, TOES, HANDS, FEET:
• If the lowest point of the opening is located up to and including the first 500 mm of the
designed water surface, no requirements will apply;
• If the lowest point of the opening is located more than 500 mm below the designed water
surface, the requirements of EN 16582-1 (domestic pools) will apply with the following
exception: Hydro-massage jets with opening diameters > 8 mm or < 25 mm are also allowed
below 500 mm of the designed water depth, when they are installed in designated seating/
lounging areas including foot massage jets and provided with the warning sign with icon
below about the risk of finger entrapment.
• If the depth of penetration is less than 10 mm, no requirements apply.
OPENINGS PRESENTING A RISK OF ENTRAPMENT OF HEAD OR NECK:
If the opening is fully located under the water surface, permissible opening requirements of EN
16582-1 (domestic pools) will apply.
In compliance with EN 17125
EN 17125 –Do not put finger in massage jet

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USE OF NON-WATER TREATMENT CHEMICALS
For chemicals unrelated to water maintenance/treatment (i.e. cleaning products and aromatherapy),
only use appropriate chemicals approved by the applicable regulations and the chemicals referenced
in this manual.
SWIM SPA SURROUNDINGS
Barefoot areas and relaxing areas shall be considered in the cleaning process as well. No cleaning
water may flow into the swim spa or swim spa water cycle. The dirt and cleaning agents shall be
rinsed carefully to drain to surrounding areas away from the swim spa.
OPERATIONAL ADVICE
• To allow good circulation when the swim spa purges and filters so that chemically treated
water flushes through all plumbing; all jets should be left in their open position, air controls/
aeration valves closed and water diverters adjusted to half way (diverting water to all jets).
• Whenever the swim spa is emptied, the filter(s) should be cleaned (and drained/dried, where
applicable).
• In the absence of automated and/or continuous water treatment (measurement and chemical
dosage) any manual dosing of chemicals shall not be performed while bathers are present in
the swim spa.
• Where an automatic system is installed, periodic checks are still required as per Water
Maintenance instructions in this manual.
• Master Spas recommends fast dissolving chlorine granules (sodium dichlor). It is not
recommended that chlorine tablets and a floater be used.
ENERGY EFFICIENCY ADVICE
In order to minimize energy consumption in everyday use of the swim spa, always use an insulating
cover to minimize calorific losses at the water surface (due to evaporation, convection and
conduction) when the swim spa is not in use.
NOTE: The recommended minimum thermal specifications of an insulating cover is 5”-3” thickness
taper with 1.25 lb density foam.
REGULATIONS
In compliance with EN 17125

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Relax and rest assured that your Master Spas manufactured swim spa has been built with safety in
mind. We manufacture our self-contained swim spas to meet a stringent list of industry standards.
Our jetted swim spas comply with the following industry standards:
• UL 1563 Standard for Electric Spas, Equipment Assemblies and Associated Equipment
• ICC ISPSC International Swimming Pool & Spa Code
• European Standard EN 17125 for Domestic Spas/Whirlpool Spas/Hot Tubs – Safety
Requirements and Test Methods
• VGB Virginia Graeme Baker Pool and Spa Safety Act (Certified by UL to UL 1563)
• ANSI/APSP-6 Standard for Portable Spas
• ANSI/APSP/ICC-14 Standard for Portable Spa Energy Efficiency
• CEC Title 20 Appliance Efficiency Regulation
• CSA C22.2 No. 218.1 Spas, Hot Tubs and Associated Equipment
• IAPMO/ANSI Z124.7 Prefabricated Plastic Spa Shells
• CE - EN 60335-2-60 Household and Similar Electrical Appliances – Safety: Particular
Requirements for Whirlpool Baths and Whirlpool Spas
• CE - EN 60335-1 Household and Similar Electrical Appliances – Safety: General Requirements
• 206/95/EC EC Low Voltage Directive
• 204/108/EMC Directive
• 93/68/EEC CE Marking Directive
Our propulsion swim spas comply with the following industry standards:
• UL 1563 Standard for Electric Spas, Equipment Assemblies and Associated Equipment
• ICC ISPSC International Swimming Pool & Spa Code
• VGB Virginia Graeme Baker Pool and Spa Safety Act (Certified by UL to UL 1563)
• ANSI/APSP-7 (Propulsion system only Certified by NSF) Standard for Suction Entrapment
Avoidance in Swimming Pools, Wading Pools, Spas, Hot Tubs and Catch Basins
• ANSI/APSP-6 Standard for Portable Spas
• ANSI/APSP/ICC-14 Standard for Portable Spa Energy Efficiency
• CEC Title 20 Appliance Efficiency Regulation
• CSA C22.2 No. 218.1 Spas, Hot Tubs and Associated Equipment
• IAPMO/ANSI Z124.7 Prefabricated Plastic Spa Shells
• CE - EN 60335-2-60 Household and Similar Electrical Appliances – Safety: Particular
Requirements for Whirlpool Baths and Whirlpool Spas
• CE - EN 60335-1 Household and Similar Electrical Appliances – Safety: General Requirements
• 206/95/EC EC Low Voltage Directive
• 204/108/EMC Directive
• 93/68/EEC CE Marking Directive
COMPLIANCE

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VGB SUCTION SAFETY & MAINTENANCE INSTRUCTIONS
VGB 2008:
WARNING
Read and follow all instructions in this manual and on the suction fitting. Failure to follow
instructions can cause severe injury and/or death.
Failure to remove pressure test plugs and/or plugs used in winterization of the spa/swim
spa from the suction outlets can result in an increased potential for suction entrapment.
Suction outlet components have a finite life. The cover/grate should be inspected
frequently and replaced at least every seven years, or if found to be damaged, broken,
cracked, missing, or not securely attached.
If the fitting is missing or broken, replace with a fitting of equivalent rating or higher. Use
of a lower rated suction fitting could result in entrapment of the body which could result
in serious injury including drowning.
Do not use or operate spa/swim spa if this suction fitting is missing, broken or not secured
per instructions. The suction fitting is intended to prevent entrapment of the body. Use of
the spa/swim spa with a missing, broken or improperly secured suction grate may result in
serious personal injury including drowning.
When the spa/swim spa is in operation, suction is created at this fitting. Users of the spa/
swim spa must be instructed not to come in contact with this fitting in such a way as to
block its orifice. If a user of the spa/swim spa blocks this fitting with his/her body, serious
personal injury or drowning may occur.
IMPORTANT SAFETY INSTRUCTIONS
WARNING - SUCTION ENTRAPMENT HAZARD
Suction in suction outlets and/or suction outlet covers which are damaged, broken,
cracked, missing, or unsecured can cause severe injury and/or death due to the
following entrapment hazards:
Hair Entrapment: Hair can become entangled in suction outlet cover.
Limb Entrapment: A limb inserted into an opening of a suction outlet sump/fitting or suction
outlet cover that is damaged, broken, cracked, missing, or not securely attached can result in a
mechanical bind or swelling of the limb.
Body Suction Entrapment: A negative pressure applied to a large portion of the body or limbs can
result in an entrapment.
Evisceration / Disembowelment Entrapment: A negative pressure applied directly to the intestines
through an unprotected suction outlet sump or suction outlet cover which is damaged, broken,
cracked, missing, or unsecured can result in evisceration / disembowelment entrapment.
Mechanical Entrapment: There is potential for jewelry, swimsuit, hair decorations, finger, toe, or
knuckle to be caught in an opening of a suction outlet cover resulting in mechanical entrapment.

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VGB SUCTION SAFETY & MAINTENANCE INSTRUCTIONS
TO REDUCE THE RISK OF ENTRAPMENT HAZARDS:
• Never use a spa/swim spa if any suction outlet component is damaged, broken, cracked, missing,
or not securely attached.
• Replace damaged, broken, cracked, missing, or not securely attached suction outlet components
immediately.
• It is recommended that suction components be inspected at least monthly.
• Replace the suction within 7 years from the installation date. Contact your dealer or local service
center for quoting and scheduling this required maintenance. This is a mandated regulation and
is not part of nor covered by the spa/swim spa warranty.
NOTE: Always review entire safety and maintenance information before beginning maintenance.
Contact Master Spas for Suction Installation information for complete suction assembly
replacement.

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GLOSSARY OF SWIM SPA TERMINOLOGY
Your new swim spa features a variety of jets. All jets, regardless of style, return the water to the
swim spa. Air is mixed with the water by using the air controls (if equipped) creating a vigorous
massage. Water flow is adjusted by simply turning the outer face of most jets. Your swim spa may
have a combination of pulsating, rotating, dual pulsating and directional adjustable jets. Here are
some terms and definitions to help get you acquainted with your swim spa.
1. THERAPY JETS
Located throughout the seats of the swim spa to offer a variety of therapy combinations.
2. NECK JETS (if equipped)
Located above the normal water level to provide massaging action to the back of the neck.
3. SHOULDER JETS (if equipped)
Located above the normal water level to provide massaging action to the shoulders.
4. MASTER BLASTER®FOOT THERAPY JET (if equipped)
Large jet with several fixed nozzles located in the bottom of the swim spa near the floor to
provide excellent massage to the feet.
5. JET DIVERTER VALVE (if equipped)
Located on the top flange of the swim spa, this large valve physically diverts the flow of water
from one group of jets to another. Be sure that no sand or particles are brought into the swim
spa as they will cause the diverter to seize up. It is best to turn the diverter valve only when the
pump is turned off.
6. WATER FEATURE VALVE (if equipped)
Located on the top flange of the swim spa, this smaller valve adjusts water flow to the
waterfalls and/or water features in your swim spa.
NOTE: When the swim spa is not in use, this valve should be turned mostly shut (not completely
shut) to prevent the water features from allowing water to hit the cover while it is closed.
If left mostly open, water may hit the cover and possibly run out of the swim spa causing
water loss.
7. AIR CONTROL VALVE
These smaller valves are located around the top of your swim spa. You may increase or decrease
the force of your jets by opening or closing the air control valves. Each air control valve will
typically function 1 to 2 groups or seats of jets in the swim spa. When not in use, the air
controls should be kept in the closed position as the air being introduced into the water can
tend to cool the water and increase the dissipation rate of sanitizer levels.
8. TOPSIDE CONTROL PANEL
You may safely control swim spa functions from inside or outside your swim spa using the
Topside Control Panel. This panel is used to control the water temperature, pumps, the swim
spa light, automatic filtration cycles and other advanced functions. The digital display will give
you a constant temperature readout and will notify you in case of certain malfunctions. Several
user programmable functions are also available.
9. PERSONAL REMOTE CONTROL (if equipped)
Select swim spa models may have an additional remote which allows the user to control the jet
therapy while remaining in the seat (if applicable). By pressing the control one time, you will
activate the pump. Press again for high speed and again to turn it off.

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GLOSSARY OF SWIM SPA TERMINOLOGY
10. ACCESS PANELS
These are the skirt panels located around all four sides of the swim spa. All of the skirt panels
are removable should service be required. Master Spas recommends at least 3 feet of space
be provided around the swim spa.
11. EQUIPMENT ACCESS PANEL
This is the skirt panel located below the
Topside Control Panel or behind access
panel “A”. This area houses the majority
of components responsible for the swim
spa’s operation. These components
include the pumps, heater, swim spa
control system, ozonator (if equipped),
and LED light system (if equipped). Pump
Panel “B”
Panel “H” Panel “G” Panel “F”
Panel “E”
Panel “A”
Panel “C” Panel “D”
and equipment placement may vary by model.
12. FILTER LID
This lid fits over the filter area and weir gate to cover the filters. Remove filter lid to access
filters for maintenance. For models equipped with a telescoping filter housing, simply lift up
to remove this floating assembly to access the filter. At low speed water flow or when the
filtering/heating pump is off, the telescoping part of the filter assembly will float at or near
the waterline. At high speed water flow, it will be drawn downward. See Accessing Filters in
the Regular Maintenance Procedures section for detailed instructions on filter assemblies.
13. WEIR GATE
The weir gate is the horizontal door located in front of the filters that helps keep debris
trapped in the filter area.
14. SWIM SPA CONTROL SYSTEM
This houses the wiring and electrical components necessary to operate the swim spa.
15. SWIM SPA HEATER
This is an electric heater housed in a stainless steel tube. It is thermostatically controlled and
equipped with high-limit temperature safety shut-off sensors.
16. SLICE VALVES
These valves are used by service personnel to shut off water to the
heating system (heater and pump plumbed to the heater) so that
the swim spa water does not need to be drained if the swim spa
requires service to the heating system (varies by model).
NOTE: Slice valves must be completely open during normal operations.
17. MAIN THERAPY PUMP
This produces water flow through the main jets in the swim spa. The first pump may be
operated on two speeds (varies by model). Low speed (if applicable) will produce efficient
water circulation during filtration, heating of the swim spa water, and gentle jet action. High
speed provides maximum jet action. The main pump is controlled by the “Jets” or “Jets 1”
button on the Topside Control Panel.
Slice Valve and Pump Union