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    acrossmile's Avatar
    acrossmile Posts: 1, Reputation: 1
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    #1

    Apr 19, 2011, 09:42 AM
    Can I use 3inch PVC pipe for the drain in-steed of 4 inch
    I am constructing a residential hotel. On first floor toilets are designed near the entrance of the room. Drainage of the toilet has to travel approx 15 feet on floor. Can I use 3inch PVC pipe for the drain in-steed of 4 inch (routinely used) to minimize the hight of floor?
    joypulv's Avatar
    joypulv Posts: 21,591, Reputation: 2941
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    #2

    Apr 19, 2011, 11:52 AM
    What country?
    It's hard to believe that you would be building a hotel in the US without your building inspector signing off on this already.
    massplumber2008's Avatar
    massplumber2008 Posts: 12,832, Reputation: 1212
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    #3

    Apr 19, 2011, 01:55 PM

    In the USA, you can install up to 3 toilets/bathroom groups on a 3" building drain.

    However, to be absolutely sure this is accepted in you area, you would want to talk to the local plumbing inspector. I would not suggest just going with what I say here online... just imagine if you were told this was no good at a later date!. UGH!

    Consult local people, but sounds reasonable from here!

    Good luck!

    Mark
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