Why is my backwash valve leaking?

Why is my backwash valve leaking?

Sand or dirt build-up around the multiport valve, diverter, or spider (aka spoke) gasket can cause water to leak out of the backwash line when the pool is set on “filter“. This is very common with sand filters and Diatomaceous Earth (DE) filters.

Why is my multiport valve leaking?

A multiport valve that leaks around the handle means your gaskets are deteriorating or they are out of alignment. Cold water actually makes conditions worse. In cold weather, o-rings shrink or small debris wedge around the stem o-rings, causing leaks.

Why is water coming out of the pool filter?

A steady or high-pressure stream of water will likely indicate a bad gasket or o-ring. If the leak is coming from either of the pipes that lead into or out of the filter, the union seal or o-ring can be changed relatively easily.

How long does a multiport valve last?

Pool valves tend to last between 5-7 years before the exterior plastic parts need to be replaced. As long as the internal parts are working handles can be replaced. If the valves are older than 10 years you may want to replace the whole thing versus replacing just handles.

What happens when Spider gasket fails?

Spider Gasket Problems If your spider gasket becomes worn or torn, or twisted or happens to pops out of the groove in the valve body, this allows water to creep and seep from one port to the next. You may not notice water bypassing the filter, and returning to the pool without being filtered, but this can happen.

How do I know if my multiport valve is bad?

One common symptom of multiport valve problems is when there is leaking around the valve itself, or when water comes out of the waste line, even when the valve is set to the FILTER position. Multiport valve problems may also be indicated when dirt fails to be trapped by the filter, instead returning to the pool.

How much does a spider gasket cost?

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