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Thread: Pentair Multiport valve SM 20-3 disharging water to backwash

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    uvabuist is offline Commercial pool users, operators, owners uvabuist 0
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    Default Pentair Multiport valve SM 20-3 disharging water to backwash

    I backwashed due to alot of rain. When I tried to put the valve back in filter, it is still disharging to the backwash.

    I wanted to take the valve apart and was looking for advice.

    It is on a pentair tritonII commercial filter with crushed glass. The valve is model SM 20-3, valve assembly SM2-PP2 and it is a couple years old.

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