Hayward Chlorinator Cap Leaking

I backwashed checked for leaks elsewhere nothing.
Hayward chlorinator cap leaking. I have replaced the o ring but it still leaks. O ring for the lid of hayward chlorinator feeder clx200k. I will try to replace the o ring first but what else could cause this. Nothing is complicated about a hayward chlorinator.
I haven t been able to get an answer any where. According to the cdc there is no evidence that covid 19 can be spread to humans through the use of pools and hot tubs. It s basically a sealed cartridge containing a chlorine supply through which your pool water passes it has no moving parts so not much can go wrong. One of the most common o rings that will leak on both the cl220 and the cl110 hayward chlorinators is the top cover gasket as shown in part number 6 in the diagram.
Poolweb technical support answered on 10 16 2017 it only includes the cover cap as shown. Proper operation maintenance and disinfection e g with chlorine and bromine of pools and hot tubs should remove or inactivate the virus that causes covid 19. Replace worn out o rings to maintain a good seal on the lid of your hayward chlorinator. You can view all the parts to this feeder on the schematic hayward chlorine cl200 and cl220 feeder parts.
The process is similar for a rainbow chlorinator as well. Is there two different thicknesses for the. The gasket o ring is clx200k and the cover kit is clx200ega which contains cover retaining screw. Next check the screw just underneath the black cap at the top.
My hayward chlorinator is leaking through the top part. Check the o ring and the top of the canister where the top screws on to make sure it is clean and not gunked up or out of place or broken. Hayward cl 220 chlorinator http amzn to 28vo5rn replacement o rings http amzn to 28zveie a third of leslie s price non petroleum lubricant. It seems the water keeps filling all the way to the top and is overflowing through the cap.
This part is called the hayward chlorinator cover replacement o ring if you should decide to buy the part at a local pool supply store such as leslies or even online. If a chlorinator lid begins to leak there are a couple of things to check. I have noticed that the top goes past the lid lock and the top can t go any farther. Replaces part no 308 1125 spx1500p 47 0354 07 r 004036 303420 53 159 354533 2921141215 o231 35505 7430 o rings.
This is my third chlorinator for the same problem are the chemicals warping the device.