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Discussion Starter · #1 ·
Years ago I had to fill the drain pipes with water from the roof vent and look for leaks as a part of town inspection. That was for new plumbing.
I'm keep the existing plumbing now and adding some new. Again, before go asking the town, and just for prep, is the leak test required with new and old plumbing joined or just the new plumbing? Thanks in advance.
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