Underwater Adhesive for Valve Gasket?

[rdelisa]

Can I use an underwater adhesive to help keep my spider gasket secure?

I recently replaced it and it worked great until I backwashed. The gasket became slightly jarred loose and was making a loud air vibration noise.
I sealed it all up and it works again, but I am afraid it will just come loose again when I backwash. Most people say those gaskets need to be glued down. I didn't do this because I couldn't get the surface dry and didn't want to lose an entire weekend of swimming to drain the plumbing and get it all dry.

There is a sealant called flex seal that works underwater? Would there be any problem just using a small amount of this to glue it down?

 

[ajw22]

@1poolman1 @wireform @Lake Placid @Poolbreh suggestions?

 

[Lake Placid]

I’m not sure about flex seal’s compatibility with rubber. They list proprietary polymers in the mix so I have no clue if it would destroy the gasket over time or not. You could try it and see as you typically don’t need a lot of adhesive.

You can use 3M 4799 adhesive. It cures up in 24 hours or less. You can also use automotive weatherstrip adhesive. Dry/clean the grooves well, adhere it and wait 15-20 minutes, lube it and reassemble. If you want to be super conservative wait the 24 hours, but you usually can wait less than that if it’s warmer out (above 72 degrees).

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[rdelisa]

Thanks, I will look into this 3M 4799. The problem is that I cannot get the contact area dry without completely draining my plumbing equipment. The water valve area just continually feels with water. I even tried sucking it out with the shop vac, but two 10-gallon buckets later it still was not dry. I was hoping to find something that can adhere right under water.

 

[Lake Placid]

Is your pad below water level? Can you not isolate and drain the filter? What’s your setup look like, we can probably get you dry for the repair.

 

[rdelisa]

Is your pad below water level? Can you not isolate and drain the filter? What’s your setup look like, we can probably get you dry for the repair.

Yeah, I think draining the filter would do the trick. Maybe I'll just bite the bullet and do that. I just wanted to avoid having to reprime the pump. My pump is a long, long ways from the pool and it takes time and wear and tear on the pump. I did get some marine glue, but I think your idea would be safer. Thanks!