pool chlorinator

Pool Chlorinators are made to make NJ pool ownership easier and safer, so what do you do when your chlorinator isn’t working properly?

I have compiled the most common problems I receive phone calls on to assist you in locating the potential problem. Follow these steps to troubleshoot your Chlorinator:

Tablets/sticks are not Dissolving

  • (Off-line models) Ensure the unit is not installed backwards. There are arrows to indicate flow direction.
  • (Off-line models) Check the inlet/outlet fittings for a clog of calcium.
  • Check the dial setting – if set to low, turn up the dial setting.


Chlorinator Leaking

  • If leaking from the top, you may have a missing or damaged lid o-ring
  • (In-line models) Threaded inlet/outlet ports may need to be replaced
  • Body of the Chlorinator may be cracked


Tablets/sticks Dissolving – But showing Low Chlorine

  • Are you using newer test strips or left overs from the previous year?
  • Are your reagents new for this season?
  • Test the CYA (Cyanuric Acid/Stabilizer) level. The reading should be 60ppm or lower.
  • Test Combined Chlorine level, you may need to shock the pool.
  • Check your dial setting – if set to low, turn up dial.
  • You may need to backwash your filter or clean pump basket.


Important Safety Tips

  1. ALWAYS make sure the pool pump is off before opening Chlorinator
  2. Stand to the side when removing lid, try not to inhale as you are in risk of inhaling chlorine gas
  3. When closing pool at the end of the season – clean all chlorine from chamber
  4. Use only SLOW DISSOLVING tablets in the Chlorinator.

Pool Chlorinators have without question made it easier and more affordable to chlorinate your pool’s water, but like everything in this life, it may at some point malfunction, so I am hopeful this article will help in solving problems you may have.