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My Hayward Chlorinator Is Leaking Through The Top Part

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Question:
Hi. My Hayward Chlorinator is leaking through the top part. I will try to replace the O Ring first but what else could cause this? It seems the water keeps filling all the way to the top and is overflowing through the cap. I backwashed checked for leaks elsewhere nothing.My Hayward Chlorinator Is Leaking Through The Top Part

Answer:

Hello RevBev,

When you say “Top Part” I think you mean the top cover of the Hayward CL220 Chlorinator, am I correct?

Chances are you will need to replace the o-ring inside of the cover of the Hayward Chlorinator This will stop the cover from leaking 95% of the time. The worst case could be that the Chlorinator tank could be warped from the Chlorine gas building up inside. I would recommend changing the o-ring that is inside of the Chlorinator top.

Let me know if you need more help,

Joseph

6 Comments

  1. I have a CL220 hayward chlorinator, all parts looks ok but I cannot close it to the lock position. I have tried with 2 people helping to hold it in place and another one try to turn the cap and we could not get it to the lock position.
    I took it to a pool shop, they could not open it then they told me I am using the wrong chlorine puck. is this true?
    can someone tell me how to fix this problem because one man cann ot open it or close it. thanks

  2. My hayward chlorinator cl200 is also leaking out of the top. We just replaced O-ring 4 weeks ago after it was leaking from the bottom. Help.

  3. My CL220 Hayward off line chlorinator has broken the cover cap (lid) two times in two years. The first time it was under warranty, so it was replaced with a new one by the pool contractor. Now it broke again but at least it did not burst like the first one did. I noticed it when the pool water level came down for about 2″ in one day. What is possibly causing this? I have checked by pressures and they are between 12 – 22 psi and do not think that this will over pressurize the chlorinator.

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