Hayward AquaRite S3 Series User manual

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USE ONLY HAYWARD GENUINE REPLACEMENT PARTS
Hayward Industries
400 Connell Drive, Suite 6100
Berkeley Heights, NJ 07922
Phone: [phone]
www.hayward.com
Owner’s Manual
092769 RevA
Contents
Before You Begin...........................2
Mounting the Equipment...............7
Plumbing......................................8
Electrical.................................,,...9
Preparing Water...........................17
Conguration..............................20
Operation....................................22
Remote Operation.......................28
Warranty......................................30
AquaRite S3 Series
Pool Chlorinator and Automation Control
®
AQRS340
AQRS325
AQRS315

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1
IMPORTANT SAFETY INSTRUCTIONS
When using this electrical equipment, basic safety precautions should always be followed, including
the following:
• READ AND FOLLOW ALL INSTRUCTIONS
• Use Copper Conductors Only
• Disconnect all AC power during installation.
• Warning - To reduce the risk of injury, do not permit children to use this product unless they are
closely supervised at all times.
• Hayward salt systems are designed, tested and sold as systems and are certified by several
agencies around the globe --- with each component of the systems meeting all required certi-
fications and attendant legal requirements. The use of an untested, uncertified generic cells (or
generic circuit boards) with Genuine Hayward salt chlorination products could lead to premature
product failure.
• Pursuant to the terms and conditions of any applicable Warranty, the use of a non-genuine
Hayward replacement salt chlorination cell on any Hayward automation or chlorination product
will void any Warranty.
• A green colored terminal is located inside the wiring 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
the equipment.
• All field installed metal components such as rails, ladders, drains, or other similar hardware
within 3 meters of the pool, spa or hot tub shall be bonded to the equipment grounding bus with
copper conductors not smaller than 8 AWG US / 6 AWG Canada.
• NOTICE TO USERS: This control product is to be used only in accordance with the directions of
this label. It is an offense under the Pest Control Products Act to use a control product under
unsafe conditions.
SAVE THESE INSTRUCTIONS

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FCC Statement
This device complies with part 15 of the FCC rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and (2) this device must accept any interference
received, including interference that may cause undesired operation.
Changes or modifications not expressly approved by Hayward could void the user’s authority to oper-
ate this equipment.
NOTE:This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This equipment generates, uses and can
radiate radio frequency energy and, if not installed and used in accordance with the instructions, may
cause harmful interference to radio communications. However, there is no guarantee that interference
will not occur in a particular installation. If this equipment does cause harmful interference to radio
or television reception, which can be determined by turning the equipment off and on, the user is
encouraged to try to correct the interference by one or more of the following measures:
-- Reorient or relocate the receiving antenna.
-- Increase the separation between the equipment and receiver.
-- Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
-- Consult the dealer or an experienced radio / TV technician for help.
Industry Canada Statement
This Class B digital apparatus complies with Canadian ICES-003.
Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada.
The term “IC” before the certification / registration number only signifies that the Industry Canada
technical specifications were met.
Before you Begin
The AquaRite® S3 is an automatic chlorine generation system with control functions for pool or spa
sanitization. Chlorine generation requires a concentration of salt (sodium chloride) in the pool water.
The unique design of the AquaRite S3 allows for a broad range of salt concentration ensuring efficient
chlorine production regardless of salt level. The AquaRite S3 automatically sanitizes your pool by con-
verting the salt into free chlorine which kills bacteria and algae in the pool. Chlorine will revert back
to sodium chloride after killing bacteria. These reactions will continuously recycle virtually eliminating
the need to add sanitizing chemicals to your pool. The only time you may need to add more salt to
the pool is when water is replenished due to backwashing, draining, or splashing (not evaporation).
The AquaRite S3 also provides control functions adding convenience to pool and spa management.
Built in functions include variable speed filter pump control, single speed filter pump control (requires
Smart Relay), heater control, pool cover detection, and more.

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The AquaRite S3 is offered in three models with the AQRS340 designed to handle the purification
needs of most residential swimming pools up to 40,000 gallons (150,000 liters), or most commercial
pools up to 25,000 gallons (95,000 liters). Check local codes for other restrictions. The actual amount
of chlorination required to properly sanitize a pool varies due to bather load, rainfall, temperature,
and the pool’s cleanliness.
Use the proper AquaRite S3 model for your pool (installation and mounting requirements are the
same for all models):
AQRS340 - for pools up to 40,000 gallons
AQRS325 - for pools up to 25,000 gallons
AQRS315 - for pools up to 15,000 gallons
What’s Included
Before attempting to install the AquaRite S3 system, check that the following components have been
included in the package:
•AquaRite S3 Electronics Unit
•Flow Switch
•Electrolytic Cell
What’s NOT Included
Some of the additional items that you may need to complete an installation include:
•Wire/conduit for 115 VAC or 230 VAC connection from the main panel to AquaRite S3
•Wire/conduit for filter pump
•Wire for remote heater control
•Hayward Smart Relay - required for single speed filter pump control
•Temperature sensors (water sensor necessary for heater control, air sensor needed for recir-
culation freeze control)
•Mounting hardware (screws, bolts, etc.) for mounting AquaRite S3
•Tools and PVC glue for installing the TurboCell and flow switch
NOTE: Hayward does not recommend using the AquaRite S3 to generate bromine.
NOTE: Before installing this product as part of a saline water purification system in a pool or spa us-
ing natural stone for coping or for immediately adjacent patios/decking, a qualified stone installation
specialist should be consulted regarding the appropriate type, installation, sealant (if any) and main-
tenance of stone used around a saline pool with an electronic chlorine generator in your particular
location and circumstances.
NOTE: The use of dry acid (sodium bisulfate) to adjust pool pH is discouraged especially in arid
regions where pool water is subject to excessive evaporation and is not commonly diluted with fresh
water. Dry acid can cause a buildup of by-products that can damage your chlorinator cell.

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The functions and features described in this manual assume that the AquaRite S3 is using the lat-
est firmware version available from Hayward. For the AquaRite S3, a USB port is used for firmware
upgrades. The latest firmware can be found on the AquaRite S3’s product page on the Hayward
website. For instructions on how to upgrade firmware, refer to page 21.
Although the AquaRite S3 is easy to use, it is important to completely read through this manual
before attempting to install, configure and operate the unit.
Features
The AquaRite S3 offers the following features:
•can generate chlorine using a broad range of salt concentrations from 1200 PPM to 8000 PPM
•can control and schedule a Hayward Variable Speed (VSP) pump using the internal RS-485
connection, a Pentair VSP using a Hayward HLPMPCONV converter (sold separately) or a single
speed pump using a Hayward Smart Relay (sold separately)
•can control a gas heater, heat pump or any other heater that uses a low voltage on/off remote
connection (requires Hayward water temperature sensor sold separately)
•inputs for water and air temperature sensors (temperature sensors sold separately)
•connection for flow switch used to detect water flow
•connection for pool cover detection (lowers chlorine production when the pool is covered)
•can be powered by either 115 or 230 VAC
•offers recirculation freeze control which turns on the filter pump automatically to prevent freez-
ing (requires Hayward air temperature sensor sold separately)
VSP or Smart Relay
USB for firmware upgrades
Temperature and Pool
Cover Sensors
Heater
Flow Switch
TurboCell
Input Power
Connector
Display Connector

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Front Panel Removal
DANGER of Death, Injury or Property Damage if procedure not followed. Dead front removal
is required for this installation. Power to the AquaRite S3 panel MUST be shut off before the dead
front is removed. This means a complete shutdown of power to the entire AquaRite S3 panel.
Installation Steps
Details on each installation step are presented on the following pages:
1. Mounting the equipment (page 7)
AquaRite S3 main unit
Optional Temperature sensors
2. Plumbing (page 8)
TurboCell
Flow Switch
3. Electrical Wiring (page 9)
High Voltage
Low voltage wiring (Smart Relay, VSP, heater, sensors, heater, flow switch and TurboCell)
4. Prepare the pool water (page 17)
General Water Chemistry
Salt
5. System Startup (page 19)
Configuration
Operation
Remove
three screws
Pull the display away from
the panel by grasping it
with your hand (no tools
required). Then, remove
the 3 screws and pull the
plastic panel away from
the enclosure. It is not
necessary to disconnect
the display wiring.

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6
120 or 240 VAC
from
Main Panel
AquaRite S3 (Optional)
Smart Relay
Variable
Speed Pump
Filter Heater
TO
POOL
FROM
POOL
Power to VSP
directly from
electrical panel
Comm.
to VSP
Power to Smart Relay
(wired in parallel with
AquaRite S3)
Comm. to Smart Relay (15’)
To Single Speed Pump
(if no VSP is used)
Water Temperature Sensor
Air Temperature Sensor
Pool Cover Sensor
REMOTE
RELAY
OFFLINE: ON/OFF
Power to Heat Pump
directly from
electrical panel
Flow
Switch Turbo
Cell
Power to heat pump
directly from electrical panel

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7
Mounting the Equipment
AquaRite S3 Enclosure
The AquaRite S3 is contained in a raintight enclosure that is suitable for outdoor mounting. The
control must be mounted a minimum of 6 ft. (2 meters) horizontal distance from the pool/spa (or
more, if local codes require). The AquaRite S3 is designed to mount vertically on a flat surface with
the knockouts facing downward. Because the enclosure is vented (disperses heat from inside the
box), it is important not to block the four sides of the control. Do not mount the AquaRite S3 inside a
panel or tightly enclosed area. Plugs are supplied to seal any unused knockouts.
When selecting a mounting location, note that the standard cables supplied with the included flow
switch and TurboCell, as well as optional accessories like Hayward temperature sensors, are all 15
ft. (5m) long. Try to mount the AquaRite S3 at a height/location where the screen and keypad can
be easily used. Select the proper mounting hardware given the size and weight of the unit. The
AquaRite S3 mounting brackets require a total of 4 mounting screws/bolts to fasten the AquaRite S3
to the mounting surface.
Temperature Sensors (sold separately)
If using the heater function or the recirculation freeze protection function, the AquaRite S3 will require
the use of Hayward temperature sensors. Refer to the following information for mounting instructions.
Water Sensor (required for heater control)
This sensor is used to measure the pool/spa temperature and is installed in the filtration plumbing
after the filter but before either the solar or conventionally fueled heaters—refer to the plumbing
overview diagram.
1. Drill a 3/8” (10mm) diameter hole in the PVC piping and remove all chips and burrs.
2. Insert sensor until O-ring collar sits flush on the hole.
3. Position hose clamp over the sensor and gently tighten until O-ring makes an adequate seal.
Do not overtighten.
Air Sensor (required for recirc freeze protection)
Mount the air sensor outdoors to a surface with low thermal conductivity. IMPORTANT: The air sensor
must not be mounted in direct sunlight.

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Plumbing
Ensure that the AquaRite S3 installation does not constitute a cross connection with the local potable
water supply. Consult local plumbing codes.
The AquaRite S3 is packaged with a TurboCell, flow switch and cell unions.
The flow switch and cell should be plumbed in the return line to the pool/spa. The preferred instal-
lation is after (downstream) all the pool equipment (filter, heater, solar, etc.). The electrolytic cell and
flow switch tee fitting are designed to be plumbed into 2” (51mm) PVC pipe. Adapters (not included)
can be used for systems with 1½” (38 mm) plumbing.
For proper plumbing, refer to the overview diagram on page 6. Alternate configuration #1 shows the
flow switch can also be in front of the cell. Configurations #2 and #3 allow for chlorination of both
the pool and spa during spa spillover operation, but prevent overchlorination of the spa during “spa
only” operation. Never use configuration #4.
Flow Switch: IMPORTANT: There must be at least a 12” (25cm) straight pipe run before
(upstream) the flow switch. If the switch is plumbed after the cell, the cell can
by counted as the 12” (25cm) of straight pipe. To ensure proper operation,
verify that the arrow on the flow switch (located on top of gray hex) points in
the direction of water flow.
Electrolytic Cell: Install using the unions provided. Tighten unions BY HAND for a watertight
seal. For pool/spa combination systems with spillover, use configurations #2
or #3 above to allow chlorination of both the pool and spa during spillover but
preventing overchlorination when operating the spa only.
2
34
12”
1
12”
min
min
Turbo
Cell
Valve
Pool Spa
Turbo
CellFlow
Switch
Valve
Pool
Spa
Turbo
Cell
Valve
Pool
Spa
Flow
Switch
Turbo
Cell
Valve
Pool
Spa
Flow
Switch

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9
Electrical
The AquaRite S3 requires both high and low voltage connections. A high voltage connection will be
made to the AquaRite S3 to power the unit. Low voltage connections will be made to sensors, VSP
wiring, optional Smart Relay, heater wiring and more. Enclosure knockouts are provided for high volt-
age wiring. A low voltage channel inside the enclosure will ensure a separation of wiring and organize
the low voltage wiring coming into the AquaRite S3 enclosure. Refer to the diagram below for the
location of knockouts and internal wiring paths. Always:
•Ensure that power is disconnected prior to performing any wiring
•Follow all local and NEC (CEC if applicable) codes
•Use copper conductors only
•Always remove power to the AquaRite S3 before removing the front panel
High Voltage knockouts Low Voltage Wiring
Channel
Inside View
High Voltage knockouts Low Voltage Wiring
Channel
Bottom View

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10
High Voltage Wiring
Input Power
If the AquaRite S3 will be controlling a VSP or single speed pump using a Smart Relay, it must be
powered continuously. A schedule will be created for the pump and the AquaRite S3 will generate
chlorine only when the pump is running. If the AquaRite S3 will not be controlling the filter pump, it
should be wired to the load side of the pump timer or in parallel with the filter pump. This will ensure
that the AquaRite S3 will power up with the pump and only generate chlorine when the pump is run-
ning. If not wired in that manner, the flow switch will enable/disable the chlorinator function.
Power Connection
The AquaRite S3 can be powered by 115 VAC (2A) or 230 (1A) VAC. There is no need to manually
select or use different input terminals, the AquaRite S3 will automatically detect the input voltage. A
wiring harness is included and will plug into the input power connector shown below. Wire nuts are
supplied for connecting the harness to input power. Wire the harness according to the diagram below.
Connect the ground wire to one of the green ground screws as shown.
For Canadian installations, the AquaRite S3 shall be connected to a circuit protected by a class A
ground fault interrupter.
for 115 VAC use black (L1) and gray (N)
or
for 230 VAC use black (L1) and gray (L2)
Ground

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If the AquaRite S3 is controlling a single speed filter pump using a Smart Relay
Use this wiring method when the AquaRite S3 is controlling a single speed filter pump with a Smart
Relay. The Smart Relay and the AquaRite S3 are continuously powered as shown. The AquaRite S3
will control the Smart Relay’s function using the low voltage communication wiring. The diagrams
below show wiring for 115 VAC and 230 VAC.
Black/White
Gray
Black
Not Used
Not Used
Neutral
Line 1 in
Line 1 out
Powering AquaRite S3 and
Smart Relay with 115 VAC
115 VAC Smart Relay
Black/White
Gray
Black
Red/White
Red
Line 2 in
Line 1 in
Line 1 out
Line 2 out
Powering AquaRite S3 and
Smart Relay with 230 VAC
230 VAC Smart Relay
OR
115 VAC
Single Speed Pump
230 VAC
Single Speed Pump
Electrical Panel
Electrical Panel

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If the AquaRite S3 is controlling a VSP
Use this wiring method when the AquaRite S3 is controlling a Hayward VSP. For Pentair VSPs, a
Hayward HLPMPCONV converter (sold separately) must be used. The pump and the AquaRite S3
are continuously powered as shown. The AquaRite S3 will control the pump’s function using the low
voltage communication wiring.
If the AquaRite S3 is NOT controlling the filter pump
Use this wiring method when the AquaRite S3 is not controlling the pump. Power from the filter pump
timer or source will power the pump and AquaRite S3 at the same time.
Single Speed Pump
Timeclock or Switch
The filter pump and AquaRite S3 are
turned on and off together
Electrical Panel
Variable Speed Pump
Both the VSP and the AquaRite
S3 are powered continuously by
the electrical panel

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13
Low Voltage Wiring
NOTE: There is a low voltage channel on the right side of the AquaRite S3 enclosure shown on page
9. All low voltage wiring that enters/exits the enclosure must run through this channel. There is a
foam gasket included with the AquaRite S3 that should be used to seal the channels’s exit after wir-
ing is complete. Do not run low voltage wiring through a knockout or with any high voltage wiring.
Smart Relay Wiring
Smart Relays rely on communication from the AquaRite S3. A Smart Relay comes with a 15ft 4
conductor cable and is wired to the RS-485 connector. Wire the cable as shown in the diagram. After
connecting the wires to the connector, run the communication cable through the low voltage Wiring
Channel as shown.
To ease wiring, the connector can be lifted off the onboard pins. Connect the Smart Relay commu-
nication wires to their proper screw terminals, then push the connector back onto the pins. For best
results, strip back leads 1/8” before inserting into the screw terminals.
Hayward Variable Speed Pump (VSP) Wiring
The Hayward TriStar 950, TriStar 900, Super Pump 700 and MaxFlo 500 pumps wire directly to the
RS-485 connector and will be fully controlled by the AquaRite S3 (schedules and speeds). Refer to
the VSP Communication Wiring table and diagrams on the following page for VSP communication
wiring instructions. For Pentair VSP models, use a Hayward HLPMPCONV converter (sold separately).
Refer to the HLPMPCONV instructions for wiring information. After wiring, run the communication
cable through the low voltage Wiring Channel (same as Smart Relay above).
To ease wiring, the connector can be lifted off the onboard pins. Connect the VSP communication
wires to their proper screw terminals, then push the connector back onto the pins. For best results,
strip back leads 1/8” before inserting into the screw terminals.
Smart Relay Connection
Green
White
Black
Red

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14
For pump models with dip switches, set all switches to OFF position (as shown). Remove the display cable. Use the spare connector taped to the display cable for the communication cable connection.
1
2
3 4
Connector
2
3
A
B
4
COM
1 2 3 4
TriStar VS 900, Super Pump VS 700, MaxFlo VS 500
3 conductor communication cable Input Power
Input Power
bare wire
Tristar VS 950
(after Jan 2019)
2
3
4
A
B
COM
1
2
3
4
3
2
COMBUS
WALL MOUNT DISPLAY
12345678
CAUTION
HIGH
VOLTAGE
M O T O R
RED BLU BLK
4
Tristar VS 950
7
8
bare wire
1
(before Jan 2019)
Input Power
VSP Communication
Wiring Table
ON
1 2 3 4 5
Pump Model S3 Conn. Pump Conn.
TriStar VS 950
(before Jan 2019)
2 7 3 8 4 1
*TriStar VS 950
(after Jan 2019)
*TriStar VS 900
*Super Pump VS
700
*MaxFlo VS 500
2 A or 2 3 B or 3 4 COM or 4
* Disconnect onboard display and set all dip switches to OFF position.

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Heater Control
The AquaRite S3 provides a set of low voltage dry contacts that can be connected to most gas heat-
ers or heat pumps with 24V control circuits. Manuals supplied with most heaters include specific
wiring instructions for connecting the heater to an external control (usually identified as “2-wire”
remote control). For millivolt or line voltage heaters, contact Hayward Technical support.
1. Wire heater to 120/240V power source per the instructions in the heater manual. The AquaRite
S3 does NOT control the power going to the heater.
2. Wire the AquaRite S3 heater output (shown above) to the heater’s remote control connection
(refer to heater manufacturer’s manual). Many internal parts of the heater can get very hot--see
the heater manufacturer’s recommendations on the minimum temperature rating for wires. If no
guidance is given, use 105°C rated wire.
3. Refer to the heater manual but it’s very likely that the heater’s ON/OFF switch must be set to ON
and the thermostat set to the maximum (hottest) setting.
Sensors
Temperature Sensors
The AquaRite S3 utilizes Hayward 10K ohm thermistor type sensors for measurement of pool and air
temperature. The sensors come with a 15 ft cable. If a longer cable is required, contact the Hayward
Technical support for information on suitable cable types and splices.
Temperature sensors are wired to the 6 position connector shown on page 4 and below. To ease
wiring, the connector can be lifted off the onboard pins. Connect the temperature sensors to their
proper screw terminals, then push the connector back onto the pins. For best results, strip back leads
1/8” before inserting into the screw terminals.
2-Wire Remote
Control wiring
Heater Connection

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16
Pool Cover Sensor
If the pool has a motorized cover, the AquaRite S3 can automatically scale back operational limits
(both chlorination setpoint and pump speed) to ensure overchlorination doesn’t occur. The pool cover
sensor must use a normally open switch that connects to the pool cover terminals shown below.
Refer to the pool cover manufacturer’s literature to determine compatibility.
Final Steps
With the previous wiring completed, locate the precut removable foam gasket that can be used to
seal the low voltage exit. Wrap it around the low voltage wiring at the exit of the enclosure (shown
below). Work the gasket into the exit slot until it is fully sealed then re-install the panel and display.
Flow Switch
The flow switch cable plugs into the flow switch connector on the bottom of the AquaRite S3’s enclo-
sure shown on page 4. Ensure that the connector latch “snaps” into place.
TurboCell
The TurboCell should be plugged in AFTER the AquaRite S3 cover panel is installed. Refer to page 4
for the location of the chlorinator cell connector.
AIR
POOL
POOL COVER
Foam Gasket

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17
Preparing Pool/Spa Water
Salt Chlorination
The AquaRite S3 automatically converts salt into free chlorine which kills bacteria and algae in the
pool/spa. Chlorine will revert back to sodium chloride after killing bacteria. These reactions will
continuously recycle, virtually eliminating the need to add sanitizing chemicals to your pool/spa.
The only time you may need to add more salt to the pool/spa is when water is replenished due to
backwashing, draining, or splashing (not evaporation). The actual amount of chlorination required to
properly sanitize a pool varies due to bather load, rainfall, temperature, and the pool’s cleanliness.
Water Chemistry
This table summarizes the levels that are rec-
ommended by the Association of Pool and Spa
Professionals (APSP). The salt level listed below
is a recommendation which allows for effective
chlorine generation but generally stays below
the level of human taste. If running higher levels,
note that swimmers may taste the presence of
salt.
Saturation index
The saturation index (Si) relates to the calcium
and alkalinity in the water and is an indicator of
the pool water “balance”. Your water is properly
balanced if the Si is 0 ± 0.2. If the Si is below
-0.2, the water is corrosive and plaster pool walls will be dissolved into the water. If the Si is above
+0.2, scaling and staining will occur. Use the chart below to determine the saturation index.
Si = pH + Ti + Ci + Ai - TDS
Hardness
Calcium
75
100
125
150
200
250
300
400
600
800
Total Dissolved
Solids
Total
alkalinity
°C °F Ti Ci Ai TDS
12
16
19
24
29
34
39
53
60
66
76
84
94
102
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.5
1.6
1.7
1.8
1.9
2.0
2.1
2.2
2.4
2.5
75
100
125
150
200
250
300
400
600
800
1.9
2.0
2.1
2.2
2.3
2.4
2.5
2.6
2.8
2.9
0-1000
1001-2000
2001-3000
3001-4000
4001-5000
12.10
12.29
12.35
12.41
12.44
Use: Measure the pH of the pool water, the temperature, water hardness, total alkalinity,
and total dissolved solids. Use the table above to determine Ti, Ci, Ai, and TDS in the
formula shown above. If the Si is equal to 0.2 or more, stains may appear. If the Si is
equal to -0.2 or less, corrosion or deterioration may occur.
Corrosion Stain
Ok
-0.2 0.2

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18
The pool’s chemistry must be balanced BEFORE activating the AquaRite S3’s. NOTE: If the pool does
not have new water, add metal remover and non-copper based algaecide to the pool, per manufac-
turer’s instructions. This ensures a quick, troublefree transfer to the AquaRite S3 system.
Salt
Use the chart on the following page to determine how much salt in pounds or (Kgs) should be added
to reach the recommended levels. Use the Pool Sizing Formula below (measurements are in feet/
gallons and meters/liters) if pool size is unknown.
The operating salt level is between 1200 PPM - 8000 PPM (parts per million) with 3200 PPM being
optimal. If the water’s salt concentration decreases, the AquaRite S3 will continue to operate down
to 800 PPM in an alarmed state before shutting down.
Before adding any salt, first test the pool’s salt level. Chlorine added to a pool over time can produce
salt so this is especially important for retrofit installation to older pools. If the level is low, determine
the number of gallons in the pool and add salt according to the chart below. The salt in your pool/
spa is constantly recycled and the loss of salt throughout the swimming season should be minimal.
This loss is due primarily to the addition of water because of splashing, backwashing, or draining
(because of rain). Salt is not lost due to evaporation.
Type of Salt to Use
It is important to use only sodium chloride (NaCl) salt that is greater than 99.0% pure. This can be
found at most pool stores in 40-80 lb. bags labeled “for use in swimming pools”. Alternatively, use
common food quality or water softener salt that is at least 99.0% pure. It is also acceptable to use
water conditioning salt pellets, however, it will take longer for them to dissolve. Do not use rock salt,
or salt with more than 1% of yellow prussiate of soda, salt with anti-caking additives, or iodized salt.
How to Add Salt
For new plaster pools, wait 10-14 days before adding salt to allow the plaster to cure. Turn the
circulating pump on and add salt directly into the pool. Brush the salt around to speed up the dis-
solving process—do not allow salt to pile up on the bottom of the pool. Run the filter pump for 24
hours with the suction coming from the main drain (use pool vacuum if there is no main drain) to
allow the salt to evenly disperse throughout the pool. The salt display may take 24 hours to respond
to the change in salt concentration.
Always check stabilizer (cyanuric acid), when checking salt. These levels will most likely decline
together. Use the chart on the following page to determine how much stabilizer must be added to
raise the level to 40 ppm.

USE ONLY HAYWARD GENUINE REPLACEMENT PARTS
19
System Startup
Before Startup
Before starting the AquaRite S3 for the first time, be sure that the following items have been com-
pleted:
1. Pool/spa chemicals are within the recommended levels according to the table on page 17.
2. Pool/spa salt level is between 1200 PPM - 8000 PPM.
3. All wiring is performed according to NEC and local codes.
4. The AquaRite S3 is properly grounded.