CircuPool SJ55 - User Manual

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Saltwater Chlorination System - Installation and Operation Guide

Models: SJ15 SJ20 SJ40 SJ55

SJ

SJ

Series Salt Systems

Advanced Swimming Pool Sanitation

Questions and Answers

M
Morgan LopezAug 12, 2025
Why is there low or no chlorine residual in my CircuPool Water Filtration Systems pool?
- Q
  qcarlsonAug 12, 2025
  If you observe low or no chlorine residual, cloudy water, or a green pool when using CircuPool Water Filtration Systems, the problem could stem from several factors. It may be due to insufficient chlorine output, which can be resolved by increasing the output level, especially with rising temperatures. Another cause could be insufficient run time; increase the run time to at least 1 hour per 10° ambient temperature. Heavy pool use, inclement weather, or organic matter might also be the cause, in which case you should activate SUPER CL MODE or chemically shock the pool. If the cell is dirty, clogged, or has excessive scaling or mineral build-up, remove the cell from plumbing, inspect and clean it. Finally, ensure the unit is active and the power is on.
D
debbie56Aug 16, 2025
What to do if my CircuPool SJ55 Water Filtration Systems system will not turn on?
- D
  Dana BryantAug 16, 2025
  If your CircuPool Water Filtration System won't turn on and the Power LED is not lit, there are several possible causes. First, verify the settings on your pool timer or controls. It's possible the system has no input power or is connected to the incorrect voltage; have a professional test the power source and ensure the correct connection. Check if the power switch is set to 'Off' and turn it to 'On'. Also, check if the Fuse Reset has tripped and press the reset button on the bottom of the Control Module.
C
Cynthia RossAug 19, 2025
Why is the Power LED flashing and Service LED on in my CircuPool SJ55?
- S
  Samantha GreenAug 19, 2025
  If the Power LED is flashing and the Service LED is on for your CircuPool Water Filtration System, it could be due to a few reasons. It could be that the salt level in the pool is low, so test the salinity and add salt if necessary (if it is less than 3500 ppm). The cell might be dirty or clogged, so you should clean it. Or, the water temperature could be low, so turn off the system until the water temperature is above 60°F. Insufficient water flow could also be the problem, so check the pump, filters, and valves for proper operation and make sure the sensor in the cell is clean and that the cell is completely full of water with no air bubbles present.
G
garzahannahAug 23, 2025
What to do if there's low chlorine after installing CircuPool SJ55?
- G
  Gina AndersonAug 23, 2025
  If you're experiencing low or no chlorine residual in your pool after a recent installation of CircuPool Water Filtration Systems, consider these potential causes. The water chemistry might not have been balanced before installation; in this case, contact a pool professional to ensure all chemicals are within range and chemically shock the pool if needed. Double-check all connections to ensure the system runs in sync with the circulation pump. Also, the system may be connected to the incorrect voltage; have a professional test the power source and ensure correct connection.
B
Benjamin BurgessAug 27, 2025
What to do if Power LED is flashing, Service LED is on, and I can't raise chlorine production in my CircuPool SJ55?
- M
  Mary SuarezAug 27, 2025
  If the Power LED is flashing, the Service LED is on, and you're unable to raise chlorine production with your CircuPool Water Filtration Systems, ensure there is no dirty or clogged cell, cold water, or low salt level. Then, activate SUPER CL mode, then hold down the (+) button until polarity lights flash. Check to see if Service LED stays on, or replace Electrolytic Cell.
M
Michael ThompsonAug 31, 2025
Why is my CircuPool Water Filtration Systems leaking water?
- J
  Joseph JonesAug 31, 2025
  If you notice a water leak with your CircuPool Water Filtration System, it could be due to several reasons. The keyed notch on the Cell head may not be fully aligned (or became unaligned); unscrew the cell, carefully align it, and hold the Cell cable in place while screwing the Cell head's cap hand-tight. Another cause could be an O-Ring improperly seated; clean the O-Ring and its channel, ensure no lubricants have been added, and fully seat the O-Ring in its channel before inserting the Cell. The Cell Cap might also be cross-threaded; unscrew the Cell Cap, inspect threads for damage, and ensure that it screws back on without resistance.
M
Melissa TurnerSep 4, 2025
Why does my CircuPool Water Filtration Systems cell frequently have mineral buildup?
- L
  Louis BuckleySep 4, 2025
  If your CircuPool Water Filtration Systems cell frequently has mineral buildup, this is due to imbalanced water chemistry. Ensure that your Saturation Index is at or near zero to avoid damage or premature cell failure.
R
Richard FrenchSep 8, 2025
Why does my CircuPool Water Filtration Systems cell never have mineral buildup?
- T
  Timothy McdanielSep 8, 2025
  If your CircuPool Water Filtration Systems cell never or rarely has mineral buildup, the water may be corrosive due to imbalanced water chemistry. Ensure that your Saturation Index is at or near zero, in order to avoid damage or premature cell failure.

Summary

SAFETY INSTRUCTIONS

WATER CHEMISTRY & SALT LEVELS

Preparing the Pool Water

Ideal Salt Levels & Pool Size

Adding Salt

Guide on how to measure and add salt, recommended salt types, and dissolution time.

Ideal Water Chemistry Levels

Recommended levels for chlorine, salinity, pH, alkalinity, hardness, and other factors.

OPERATION

Using the Control Module

MAINTENANCE

Expected Maintenance

Cleaning the Electrolytic Cell

Step-by-step guide for removing and cleaning the cell to remove mineral buildup.

INSTALLATION

Installing the Electrolytic Cell

Detailed instructions and diagrams for plumbing the electrolytic cell into the return line.

Installing the Control Module

Wiring

Instructions for wiring the control module to the power source and pump, including bonding.

Wiring to Power Source

Specifics on connecting the SJ-Series to power, voltage configuration, and variable speed pumps.

VOLTAGE CONVERSION

INSTALLATION CHECKLIST

TROUBLESHOOTING

CircuPool SJ55 Specifications

General

Type	Salt Chlorine Generator
Pool Size	Up to 55, 000 gallons
Power Consumption	220W
Voltage	120V/240V
Salt Level	4500 ppm
Flow Switch	Yes

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