Sewer gas smell in shower only with hot water running

Discussion in 'Shower & Bathtub Forum & Blog' started by Dmrlbert, Apr 28, 2012.

  1. Dmrlbert

    Dmrlbert New Member

    Apr 28, 2012
    I am trying to determine why I am getting a sewer gas smell in my master bathroom. This is not happening in my kids bathroom when I run the shower. I only notice the smell in the master shower after about 2 minutes of hot water. When I run cold water only i do not get this smell. We had a tub removed about 3yrs ago and they had to reroute some plumbing. When I look in the pipes I see standing water in the p-trap. Please any help is welcome as I don't want my kids breathing this gas.
  2. hj

    hj Master Plumber

    Aug 31, 2004
    Cave Creek, Arizona
    It is probably magnesium sulfide cause be a reaction between the hot water and the water heater's anode rod. HOW the showers are constructed will determine whether you smell it or not.
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