What is the outer dimension of the gasket? I need one that has a 4.5 inch diameter.Nissa Paul asked on 07-01-19
Poolweb Technical Support answered on July 2, 2019
The measurement photo we have online is the best we have for dimensions. This spider gasket is designed for the Waterway Multiport Valves listed. Manufacturers make their parts unique to their product. The best way to find the correct spider gasket is by going to the parts schematic for your multiport valve's manufacturer and model (Parts - Schematics - Valves).
Is the center hole exactly 1" as mine is 1-1/4"?Anonymous asked on 07-28-17
Poolweb Technical Support answered on July 31, 2017
This part fits only the Waterway 50SF and 100SF Aboveground Skim Filters. If this is a replacement part for those Skim Filters, it will fit.
What is the size of the small hole on the waterway spider gasket (711-1910B)Anonymous asked on 06-14-17
Poolweb Technical Support answered on June 15, 2017
Waterway spider gasket (711-1910B) has a 1 inch hole in the center.
Is there a easy way to get the old spider gasket out of the multi port?Anonymous asked on 05-21-17
Poolweb Technical Support answered on May 22, 2017
Unfortunately, there is not an easy way to remove the old gasket. Use a flat screwdriver to remove the gasket and glue. Use needle nose pliers to pull the old one out. You will need a tool to scrape the old glue out of the track as best you can with the small width flat screwdriver.
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Sand Filter MPV Spider Divert Gasket
Waterway Plastics 711-1910B Spider Diverter Gasket for ClearWater, Carefree and TWM Sand Filter Multi-Port Valve Assemblies.
I think some will find this helpful who are working on a discontinued Sta-Rite Multi-Port Valve model WC112-148. After measuring and removing the old ring we took a chance on the fit for the stay-rite valve and it fit like a glove. We installed and the valve is no longer leaking at the backwash port and the pump is in full summer operation.
They may say it only fits the Waterway 711-191OB, but I'm here to tell you it DOES FIT the Sta-Rite WC112-148 Multi-Port Valve. and we have had it installed and working for the last month! Be sure to lube your gasket with Haywards - JACK'S FORMULA 327 Multilube
Don't spend over $100 if your Spider valve gasket is bad. We fixed our valve for under $30.
Hope this helps another get their valve working for a lot less!
Pros: Works in other applications other than listed
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