Watts RP 009, 1/2″ impossible to repair in a tight spot with out the right tools.
Failed check valve number 1. We needed to access the relief valve cover in a tight spot. Upon extracting the old number 1 check, it broke apart inside the assembly. It is pretty difficult to insert the new check valve into the body of the RP if you can not extract all of the check valve. This is where the specific tools are required.
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