Question about Pool & Spa
Most o-rings that are squeezed in compression to form a seal will expand to slightly bigger than their original size when taken out of that situation. However, they will regain their original shape over time. If you want to speed this recovery, you can put an enlarged o-ring in your ice-box overnight. When you put the o-ring back inside a Pentair 320 cap where it belongs, preferably with silicon grease smeared on it, just screw the cap on until it begins to firmly resist, don't crank until you cannot twist it any more. If it leaks a little when you first turn on the pool pump, then tighten it a little more until the leak stops. This goes for all o-rings and rubber gaskets in things like taps and hoses. Just tighten them until they seal, don't punish them with heavy torque, and they will last many times longer. Cranking any rubbery seal just stresses and deforms it, shortening its shelf life and defeating its purpose.
Posted on Nov 28, 2015
Yes, the o-ring does swell up. I am not really sure what causes that, but the only fix is to replace it. It goes inside the cap. Only use teflon or silicone based lube on it.
Posted on Jul 24, 2013
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Posted on Jan 02, 2017
their is a set screw in the side of the chlorinator towards the bottom (you should see a little hole in the side of the chlorinator near the base). remove that screw and the chlorinator will unscrew from the base.
Posted on Jan 16, 2010
It can be but probably isn't. A three inch tab is meant only to maintain your chlorine level. You must first bring the chlorine level up to specs, by adding either liquid or powdered chlorine, than add one or two tabs a week to hold it at that level.
Posted on Jun 13, 2010
Testimonial: "Thanks, I will try that."
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