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  1. controlfreak

    Sch. 40 PVC and Sodium Hypochlorite

    I am having a problem with injecting 12% sodium hypochlorite into sch. 40 pvc pipe. It causes a black residue to develop, and cloggs all of my monitoring ports. Mixing it with 70deg. water. Piping vendor says that going to schedule 80 is better, but didn't give me a good reason. Does anyone...

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