So I've had a plumber friend tell me the best way to see if 3 pipes in my basement are drains is to put a Garden hose in them and run the water. What if the pipes under the slab are cracked? Won't water just sit there then under the slab? Sounds bad

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    In my experience it is rare to find pipes that are not connected to a drain field or sewer. I would take your friend's advice.
    – Ed Beal
    Oct 30, 2016 at 14:56

1 Answer 1


The ground under your home is loaded with water. It may be down a ways, but it's there. Any water you add will percolate down to the existing water table. The only real concern is temporary flooding. Use common sense. Monitor the entire area while you run your test. Use an assistant if available. Look and listen.

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