By Pentair Pool Products
Part # 4678-51
Manufacturer Code 072524
Dimensions 5" L x 1" W x 1" D
Spring SS 3lb - Ortega Check Valve (072524)
2 inch valve has 1 lb stamped on lid. I found the spring broken and lose water from spa to pool overnight. I’m replacing flapper and curious if I should try a 3 pound spring or stick with 1 lb. I have a deprecate pump powering this check valve for the in floor cleaning system so I believe it has the pressure to handle it.
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Hi Nathan, If you don't really have any issues with the check valve besides the occasionally failed check valve then I would suggest keeping the same spring as it may fit best in your union body.
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