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Home » Backflow Testing, Repair, Installation » Sand in a 3″ Wilkins 375A RP

Sand in a 3″ Wilkins 375A RP

We had to clean out the check valves and the relief valve.  This could have been prevented if the contractors flushed out the lines before installing their equipment.  We are happy to help.

The actual problem still presented itself after cleaning out the entire assembly and flushing it several times along with the mainline. In the last picture is the disc that fits into the relief valve seat. It had some very minor damage from the trash that was in the assembly from the new install. The only way we were able to get the relief valve to stop dripping was to flip the disc or replace the disc.

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