Low or No Chlorine Residual

Common Issues & Solutions for Low or No Chlorine Residual in a Pool

Check out the possibilities below to determine the error and find a solution for low or no chlorine residual or low cyanuric acid level in pool water.

Low Stabilizer or Cyanuric Acid Level

1. Check stabilizer level
2. If level is low, add stabilizer to reach 20-30 PPM

Did this solve the problem?

Insufficient Run Time

Increase the daily run time.

Typical rule of thumb: one hour of run time per 10° of ambient temperature.

If the chlorine level rises and became consistently well-balanced, it is likely this solution worked.

Did this solve the problem?

Chlorine Output Percentage Set Too Low

Increase the chlorine output level. The chlorine output lights on the control panel show the level of chlorine as a percentage of the system capacity.

If the chlorine level rose and became consistently well-balanced, it is likely this solution worked.

Did this solve the problem?

Weather Temperature Increased

The weather temperature increased, but the chlorine output stayed the same.

Increase the chlorine output level. The chlorine output lights on the control panel show the level of chlorine as a percentage of the system capacity.

If the chlorine level rose and became consistently well-balanced, it is likely this solution worked.

Did this solve the problem?

Heavy Rain or Bather Load

1. If there has been a temporary loss of chlorine due to heavy rain, leaves, fertilizer, heavy bather load, recent party or pets using the pool, it is recommended to set the chlorine output to BOOST. BOOST will super chlorinate the pool for 72 hours.
2. Re-check after that time to see if there is still a low reading of chlorine.
3. If so, super chlorinate the pool with an outside source.

If the chlorine level rose and became consistently well-balanced, it is likely this solution worked.

Did this solve the problem?

Loss of Salt Due to Rain or Added Water

There may be low levels of salt in the pool water.

1. Test the salt level.
2. Power on the pump to circulate the pool water.
3. Use the salt addition chart to determine the pounds of salt per gallon. Ideal operational salt range = 4,000-4,500 ppm.
4. If the salt level is low (less than 3,000 ppm), increase the salt level, by slowly pouring in the salt around the outer perimeter of the pool for quick and even distribution.
5. Brush the bottom of the pool to distribute salt evenly and allow water to circulate for 24 hours before testing salt levels again.
6. Power on the Powerclean Salt system.

If the chlorine level rose and became consistently well-balanced, it is likely this solution worked.

Did this solve the problem?