How to find the right Pool Filter Valves AI guide

Written by an AI model from its trained knowledge.

What the AI looks for in Pool Filter Valves

Mount style: Match top-mount or side-mount to your filter tank. They are not interchangeable. The valve's mount determines how it attaches to the tank and connects to its internals.
Filter brand and model fit: Confirm the valve is listed for your exact filter brand and tank series, including the neck size and clamp or bolt pattern. Multiport valves are mostly brand-specific even when they look the same.
Port size: Match the pipe connection size, typically 1.5 inch or 2 inch, and the union or threaded style. Mismatched ports restrict flow or need extra adapters that leak.
Valve type: A 6-position multiport (filter, backwash, rinse, waste, recirculate, closed) suits sand and many DE filters. A push-pull or slide valve is used on some DE and sand filters. Your filter's design dictates which type will work.
Leak repair before replacement: If water runs to the waste line in filter mode, replace the spider gasket or rotor before buying a whole valve. A worn gasket is the most common multiport failure and is a far cheaper fix.

Hayward: Vari-Flo multiport valves for Hayward sand and DE filters.
Pentair: Multiport and push-pull valves for Pentair filters, including legacy Sta-Rite tanks.
Jandy: Valves for Jandy and Zodiac filter tanks.
Waterco: Multiport valves for Waterco and some compatible tanks.
Praher: Multiport valves used on various sand filter tanks.

Turning the valve handle while the pump is running
Buying by appearance instead of by filter model compatibility
Using thread sealant on fittings not meant for it, which can crack plastic ports
Replacing the whole valve when only the spider gasket is worn

Usually the spider gasket is worn or the rotor is scored, so water bypasses into the waste port. A gasket kit often fixes it.

Only if the valve maker lists your filter as compatible. Neck size, mount style and internal fittings differ between brands.