Question about Hayward SAND FILTER, PRO SERIES

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Hayward sand filter leaks

The tank on my Hayward sand filter has sprung a small pin hole leak. Any way to fix that?

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john h

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Body leak -a waterproof epoxy

Posted on May 03, 2020

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Erez

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My sp0714t Hayward same filter was leaking from the cover, just below the 6 screws.
I replaced the cover o-ring inside and it stopped.
The o-ring became oval and not round in cross section for to the 10 years of pressure on it.
I didn't use the original sp0714L o-ring but just bought a similar o-ring from a store.
Greesed it with silicone greesed to grolong it's life span.

Posted on May 03, 2020

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Kieran Ruppert

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You can try different epoxy's but they usually won't hold as the filter expands when running this will break any seal where you put it.You can check into warrentys. A lot of these filters had good warrentys on the tanks that went longer than valve or internal's. if you have install dates and model #'s. Check on line with Hayward.
http://www.haywardnet.com/inground/products/manuals.cfm

Worse comes to worse you can drill out a small hole amd using stanless steel go with a bolt and nut with washers and rubber washers in the middle. when you set it seal it all with silicone and after it is tight let it set for eight hours or so. Good luck.

Posted on May 28, 2010

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1 Answer

Sand Leaking From Filter into Pool. When my filter is running I am experiencing sand in the bottom of my pool from the filter. What can be causing that?


There is only one thing that can cause sand to come back into the pool from a sand filter. The internal assembly, called the lateral assembly, is either cracked or broken. This is an easy fix and should cost you around $70 to replace the whole thing. You need to unscrew the bottom drain cap on the filter to remove the water in the tank. Then, remove the multiport valve on top of the filter. Take a shop vac and remove the sand in the filter. If the sand hasn't been replaced in the last 3-5 years, this would be a great time to do that since you already have the sand out anyway. Then, remove the lateral assembly and inspect the entire thing. After you replace the lateral assembly, you'll need to fill the sand filter tank 1/2 full of water before adding fresh sand. This is done to cushion the laterals from the weight of the sand. Cover the hole in the top of the lateral assembly pipe with a cup or duct tape to prevent any sand from getting inside the pipe (the sand will come out into the pool if it gets into the pipe). Fill the tank 3/4 full of pool filter sand. Make sure it is genuine silica pool filter sand from a pool company. A lot of big box and home improvement stores sell play sand as filter sand. This will cause you more problems!

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My Hayward Sand Filter Tank has sprung a leak on the side of the tank not near where it looks like the tank might have been molded together. What can I use to patch the tank that will hold and not leak?


They are fiberglass ... fiberglass repair kit should do it ...

Im not so sure I would fix it ... if it is broken ... there are probably problems you cannot see ... might be cheaper to replace the tank when you consider what might happen if it breaks while you are not around.

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I am not that familiar with the G series Hayward filters, but most sand filter tanks do not separate. It's a labor intensive job so think hard before trying it if you haven't before. If your backwash valve is on top of the filter, the plumbing will have to be removed. There are two ways that I have removed the sand. Scooping it out by hand or using a shop vac. Remember the sand is going to be very heavy when wet. You will need to go through the top. Some filters have a large drain plug in the bottom that "supposedly" you can drain the sand out through.I have done this once and it makes a big mess that you still need to clean up.

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Be careful not to damage the laterals it the bottom of the filter. When replacing the sand, I put small gravel (pea gravel) carefully under and partially around the laterals to help support them from the weight of the new sand.

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I have a Hayward sand filter and the top is cracked and leaks. When I patch it, it just cracks somewhere else


those tanks are designed to hold alot of pressure. If it is cracked, it's already unsafe. When the pump turns on, the tanks usually flex a little bit, depending on your system. The flexing usually makes the patch come undone. It's best, and safer, to replace the filter tank.

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1 Answer

I have a 166T hayward filter. The gray filter


I don't think you can buy just the filter tank. Most places only sell the filter tank w/skirt, drain & lateral assembly as a single unit. If the crack is more than an inch or two long I would not risk repairing it as there can be upwards of 30psi when the filter is dirty (safety issue). You can try some epoxy on it if its a very small leak but the success rate for that kind of repair is not very good.

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1 Answer

Sand in my waste water


O-rings or gasket are replaced to stop leaks, so that wouldn't have helped you.

It could be one of two things; either the white PCV-like pipe in the filter tank is cracked OR some of the laterals at the very bottom of the tank, under the sand, has melted. A whole new underdrain assembly is usually $70.

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Most hayward sand filters use a GMX600F or GMX600F-H o-ring.
If it is an older tank it might use the GMX400F which is smaller, and rare to come across. Most 400 Valves are not marked vari-flo.

Hope it helps.

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