foghat35
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I have put together dozens of pvc fittings and never had one not take until today. I'm replacing a trap adapter so the elbow had to come off. For some reason the pvc pipe I am attaching the new elbow to will not bond to the coupling. The cement is melting the coupling but not the drain pipe no matter how long I hold it together. I tested the primer and cement on a few spare parts after the first failure and it holds fine but for some reason it's not working on this pipe. Even the coupling I used the first time holds strong on spare pipe. It's definitely pvc so I'm at a loss as to what's happening. Bad pipe maybe??