Master Spas INT MP FORCE User manual

OWNER’S MANUAL
INTERNATIONAL

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MASTER SPAS OWNER’S MANUAL
Welcome To Ultimate Relaxation!
Thank you for choosing your new swim spa built by Master Spas. 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. Please visit www.masterspas.com
to check for product information updates and click the Resources link on the page to review
support information.
Record Of Ownership
Name��������������������������������������������������������������������������������
Address������������������������������������������������������������������������������
City ��������������������������������������������������������� State ������ Zip ���������
Phone # (������)��������-���������� Date Purchased ������ /������ /�������
Model ��������������������������������� Serial #���������������������������������������
Dealer Name �������������������������������������������������������������������������
Service Tech Rep ����������������������������������������������������������������������
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.
Ex. H171234
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 Inc. will not have record of your ownership.
To register your swim spa, visit www.MasterSpas.com and click the Resources link on the page. This
area will offer Swim Spa Registration capability along with other support information.
6927 Lincoln Parkway
Fort Wayne, Indiana 46804
www.masterspas.com

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TABLE OF CONTENTS
Record of Ownership.............................................................................................................. 1
Table of Contents................................................................................................................... 2
Safety Instructions ............................................................................................................ 3-10
VGB Suction Safety & Maintenance Instructions............................................................... 11-12
Glossary of Swim Spa Terminology.................................................................................. 13-15
Site Preparation / General Guidelines .............................................................................. 16-18
Installation Instructions........................................................................................................ 19
The Advantages of EcoPur®Charge.................................................................................. 20-21
Water Chemistry Terms You Should Know ....................................................................... 22-23
Why Are Chemicals Important in a Swim Spa........................................................................ 24
Water Maintenance......................................................................................................... 25-28
Start-Up........................................................................................................................ 25
Schedule.................................................................................................................. 26-27
Troubleshooting Guide.................................................................................................. 28
Regular Maintenance Procedures..................................................................................... 29-34
Swim Spa Troubleshooting Guide .................................................................................... 35-36
Winterizing & Storing Your Swim Spa ................................................................................... 37
Swim Spa Care & Maintenance Record............................................................................. 38-40
Electrical Requirements................................................................................................... 41-47
Model Specifications ............................................................................................................ 48
Swim Spa Controls .......................................................................................................... 49-65
Propulsion System Controls ............................................................................................. 66-76
Propulsion System Technical Information.............................................................................. 77
Fusion Touch Sound (if equipped) .................................................................................... 78-79
Deluxe Fusion BT Stereo Option (if equipped) .................................................................. 80-88
Mast3rPur (if equipped) .................................................................................................. 89-91
SoftTread™Floor System by SwimDek®(if equipped)............................................................. 92

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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, Inc. By fully
understanding the operation of each of the features of your new Master Spa, you will be assured
of many years of hassle-free, hot water therapy and fun.
Your safety is of paramount importance to the MasterSpas family. We urge you to read and
become thoroughly familiar with all safety aspects addressed in this manual.
Through reading and totally understanding the important information in your owner’s manual, you
will realize that you now own THE ULTIMATE RELAXATION MACHINE!

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SAFETY INSTRUCTIONS
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 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 prod-
uct 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 pre-
vent unauthorized access by children. To avoid accidents, ensure that children can-
not 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 suc-
tion fitting.
DANGER – Risk of Electric Shock. Install at least 5 feet (1.5m) from all metal sur-
faces. 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.
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 40˚C (104˚F). Water tem-
peratures between 38˚C (100˚F) and 40˚C ( 104˚F) are considered safe for
a healthy adult. Lower water temperatures are recommended for young
children and when swim spa use exceeds 10 minutes.

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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 preg-
nant women should limit water temperatures to 38˚C (100˚F).
c) Before entering a swim spa, the user should measure the water tempera-
ture 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 pro-
vided for an indoor installation.
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).
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

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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 sys-
tem 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 servic-
ing. 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.

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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 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 HIS-
TORY 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 PHYSI-
CIAN 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 TEM-
PERATURE 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 STRENU-
OUS 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 37˚C (98.6˚F). The symptoms of hyperthermia include
drowsiness, lethargy, and an increase in the internal temperature of the body. The effects of hyper-
thermia 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
LA CONSOMMATION D’ALCOOL OU DE DROGUE AUGMENTE CONSIDÉRABLEMENT LES
RISQUES D’HYPERTHERMIE MORTELLE DANS UNE CUVE DE RELAXATION.

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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 as
described on the previous page.
Suction outlet components have a finite life. The cover/grate should be inspected frequent-
ly 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 fol-
lowing 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 mechani-
cal 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 replace-
ment.

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GLOSSARY OF SWIM SPA TERMINOLOGY
Your new Master 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 gentle to
most vigorous massage. Water flow is adjusted by simply turning the outer face of most jets. Your
Master Spa may have a combination of pulsating, rotating, dual pulsating and directional adjust-
able jets.
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 pro-
vide 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 water-
falls 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 typi-
cally 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 in to 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.

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GLOSSARY OF SWIM SPA TERMINOLOGY
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.
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 access be
provided around the swim spa.
Panel “B”
Panel “H” Panel “G” Panel “F”
Panel “E”
Panel “A”
Panel “C” Panel “D”
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 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.
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 oper-
ated 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 I” button on
the Topside Control Panel.
Slice Valve and Pump Union

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GLOSSARY OF SWIM SPA TERMINOLOGY
18. SECONDARY THERAPY PUMP (if equipped)
This produces water flow through 1 to 2 groups or seats of jets in the swim spa. The second
pump operates similar to the main pump and is controlled by the “Jets II” or “Aux” button
on the Topside Control Panel.
19. THIRD THERAPY PUMP (if equipped)
This produces water flow through 1 to 2 groups or seats of jets in the swim spa. This is con-
trolled by the Jets III button on the Topside Control Panel.
20. CIRCULATION PUMP (if equipped)
This produces water flow through the heater in the swim spa and provides the water flow
necessary to actuate the ozone injector. This energy efficient pump runs 24 hours for efficient
filtration and heating.
21. PUMP UNION
These are used to help relieve possible pump air locks or for service personnel to easily service
the pumps.
22. HEATER UNION
These are used by service personnel to easily service the heater.
23. SWIM SPA LIGHT
The on/off control for the lighting in your swim spa is located on the topside control panel near the
therapy seats.
24. EXERCISE JETS (H2X Swim Spas)
These large jets are grouped at the end of your swim spa to offer water flow for exercising
against. A jet diverter valve may control the flow for these jets.
25. SWIM SPA JUNCTION BOX (MP Swim Spa Only)
The internal junction box for connecting your electrical service(s) to the swim spa is located
behind and accessible by removing access panels “B” and “A”.
26. PROPULSION SYSTEM ACCESS (MP Swim Spa Only)
The propulsion control system of the MP Swim Spas is located behind the skirt panel desig-
nated as “E” in the access panels drawing. The propulsion motor, propulsion control pack,
and pulleys for the system are located in this area.
27. PROPULSION SYSTEM CONTROL PANEL (MP Swim Spa Only)
You may safely control the speed of the propulsion system from the inside of your swim spa
by using the buttons on the control panel mounted in the swim area. This control panel is
used to turn the propulsion system on and off and to adjust the intensity of the water flow.
Your swim spa may have one of three propulsion systems depending on the equipment
option: Wave, Wave XP, or Wave XP Pro. All three systems operate in the same manner using
the control panel mounted on the swim end of your swim spa. This control panel may be
safely used from inside or outside of the swim spa to operate the propulsion system.

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Swim spa installation is simple when properly planned. It is important that you read the following
information carefully and consult with your Master Spas dealer.
1) Access - The actual dimensions of your new swim spa will determine the amount of space that
is needed in moving the swim spa from curbside to its final installation area. Be sure to consider
and measure side yard dimensions, gates, doors, overall room dimensions and vertical obstruc-
tions such as ceilings, roof overhangs, balconies and overhead cables. Any other space limiting
obstacles such as stairs, trees, and shrubs must also be evaluated. Please be sure to contact and
review these site and installation plans with your Master Spas dealer prior to delivery.
2) Surface/Pad Requirements - When your new swim spa is filled with water and bathers, it may
weigh as much as several tons. It is imperative that the base beneath the swim spa can support
the entire weight. The swim spa must be on a uniformly firm, continuous, and level surface. The
recommended foundation is a concrete pad with a minimum thickness of four (4) inches with
steel reinforcement bars crossed throughout the pad.
IMPORTANT
When installing your swim spa indoors, on a wood deck, roof or balcony; load requirements need
to be evaluated before installation. You should speak with a qualified contractor or your local
building department to confirm that your surface is adequate for supporting a swim spa.
All sides of the swim spa must be accessible for regular maintenance or in the event that service
is needed. Periodical maintenance checks require entry into the equipment bay. When possible, it
is wise planning for the future to leave 3 feet of access to all sides of the swim spa in the event
your swim spa requires maintenance. Your swim spa warranty does not cover the cost of providing
access for service.
GENERAL CONSIDERATIONS FOR OUTDOOR INSTALLATION
Again, proper planning will increase your total enjoyment factor with your new swim spa. Listed
below are some additional items to consider when planning your installation.
• How swim spa will complement landscaping
and vice versa
• View from inside swim spa and view of swim
spa from inside of home
• Exposure to sunlight and shading from trees
• Privacy
• Getting to swim spa from house and return
• Proximity to dressing rooms and bathrooms
• Storage for swim spa chemicals
• Local building codes (if applicable)
• Power cable
GENERAL CONSIDERATIONS FOR INDOOR INSTALLATION
Installing your swim spa indoors creates an entirely different set of considerations.
• Work with your Master Spas dealer and
contractor to insure all local building, electri-
cal and plumbing codes are met
• Plan for a floor drain to drain off excess water
and for draining and cleaning your swim spa
• A ventilation fan may be necessary due
to high humidity created by your swim spa
• Finished material in your swim spa room
should also be capable of withstanding
increased humidity

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GUIDELINES FOR PARTIALLY OR FULLY RECESSED INSTALLATION
Swim Spas manufactured by Master Spas, Inc. are designed to be installed in a variety of settings.
One of which is installing below grade. Should a swim spa be installed below the level of the
site drainage system (below grade), a system for preventing water collecting and pooling must be
designed based on the requirements of the local authority having jurisdiction. The drainage system
must be designed based on things such as rainfall, water runoff, splashing, draining the swim spa,
etc. that could potentially feed the below grade area with water. Where located in designated
floodways, additional attention to maximum water load entering the area below grade must be
addressed to prevent water from accumulating below grade at all times. It is generally recom-
mended that the swim spa be installed above grade because the swim spa is not designed to be
submerged in water. When a proper drainage system is designed and proper ventilation is planned
based on the characteristics of the site, installing the swim spa below grade is an accepted method
of installation.
• The unit is self-supporting when placed on a surface designed to support the full load of the
swim spa (see Surface/Pad Requirements). Do not backfill with sand, gravel, or earth. Doing so
will void the warranty.
• Plan for complete drainage so that water accumulation drains away from the swim spa perimeter
and standing water never reaches the electrical equipment.
• Plan for appropriate ventilation to remove moisture accumulation and prevent equipment
overheat.
• Provide a minimum of 3 feet service area around the perimeter of the unit. Site access issues are
not covered by the product warranty.
• The unit is not designed to be submerged in water. Water entering the equipment area creates
many hazards and resulting damage will not be covered by the product warranty.
• Make sure that the surroundings do not create any additional hazards.
• Surfaces placed around the unit should also be evaluated for walking/slipping hazards from
standing water. Proper drainage is vital to the installation of a below grade installation.
• Check all building, electrical, and plumbing codes with the authority having jurisdiction to ensure
that your installation is in compliance with all local codes.
• Additional consideration needs to be made when installing unit in designed floodways.
• Verify that site specific drainage systems such as down spouts are not going to feed the area
below grade.
• Below grade drainage system needs to be evaluated based on area specific rainfall. One size
does not fit all so an analysis by a qualified, local engineer to ensure proper drainage of all sourc-
es of water is a must when installing below grade.

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