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My main drain valve has finally died and needs repalcement. It appears to be a 1.5" brass gate valve but I have not taken itapart so I'm not sure. Can someone tell me if a gate valve is the right thing to repalce a main drain valve with and are there any suggestions on something that might be better.
I don't know where exactly in the system this valve is located -- possibly a shutoff before the pump to isolate that line from the other suction? (well Duh!! you said it was a shutoff valve...) -- but this I know for sure: Gate valves are the reason God created ball valves. Definitely go with a ball valve, preferably PVC, and also one that comes apart on one end so you can get at the seats if you need to. ;)