no drip leg on water heater

Discussion in 'Water Heater Forum, Tanks' started by jocar, Jun 2, 2012.

  1. jocar

    jocar New Member

    Jun 2, 2012
    British Columbia
    my brother recently had a new gas water heater installed by a well known plumbing company. when I looked at the install I noticed the guy installed the tank with a s/s flex line fastened to the vertical black iron pipe just under the union with no drip leg like it was previously plumbed. is it essential to have a drip leg installed on the black iron pipe like it was previously.
  2. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Sep 2, 2004
    Retired Systems engineer for defense industry.
    New England
    For practical purposes, probably not. From a code viewpoint, maybe. In most places, today's gas supply is quite clean, but it doesn't hurt to have a trap or drip leg.

    Last edited by a moderator: Jul 12, 2016
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  4. hj

    hj Moderator & Master Plumber Staff Member

    Aug 31, 2004
    Cave Creek, Arizona
    I haven't installed a "drip leg" in the past 40 years, since I have moved to this area where they are not code required.
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