Leaking backwash hose.


Well-known member
Jun 4, 2015
Winnipeg, MB, Canada
Good day. Just getting my pool ready and seem to have a leaking backwash hose, in both filter and bypass. From what I've read that would indicate a spider gasket problem? Can anyone help me get the right thing by telling me which number on the list I need? Or which part number or something to help.

Parts for Sta-Rite Top Mount Valve Parts, Pentair Multiport, Swimming Pool Valve Parts

Also, the hole where I screw the pressure gauge has a small crack. I've ignored it for 3 years now, but just wondering if I could get this to solve both problems at once?

StaRite WC112 Multiport Valve Plug and Cover Assembly, 77704-0104

Thanks for all your help.

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Mod Squad
TFP Expert
LifeTime Supporter
Jul 10, 2009
Houston, Texas
That should do the job. Be sure you put some silicon pool lube on the o-ring before you install the new multiport valve.

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