Do I need to buy a new multiport valve top to replace spider gasket???

[kymom73]

My filter is leaking out the backwash hose after I backwash and return to filter mode. Also, leaking down the side of the filter. I assume I'm correct that we need to replace the spider gasket. Pool store told me that because my old gasket is white that those models will always leak and I have to replace the whole top for $150 (or the black part the gasket goes into for $80). Is this correct??

 

[revitup]

My filter is leaking out the backwash hose after I backwash and return to filter mode. Also, leaking down the side of the filter. I assume I'm correct that we need to replace the spider gasket. Pool store told me that because my old gasket is white that those models will always leak and I have to replace the whole top for $150 (or the black part the gasket goes into for $80). Is this correct??

Nope, just the ‘diverter’ assembly which contains the spider gasket. About $30.

 

[bb80301]

I had a similar slow leak with my Pentair multiport valve into backwash when on filter. I replaced the spider gasket, and it still was leaking. Turns out that the spring in the multiport valve was weak. After replacing the spring, the problem went away.