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Drain for water heater

Troost Avenue | Posted in Construction Techniques on December 22, 2008 05:22am

I’m installing a 40 gal electric water heater and will put it on a pan, just in case. I can’t drain the pan to the outside. How would i connect to a sanitary drain? There won’t be any water to fill a P trap. Do i need a backflow stop? Would that be enough?

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Replies

  1. User avater
    BillHartmann | Dec 22, 2008 08:50pm | #1

    A waterless trap floor drain.

    http://www.trapguard.com/

    .
    William the Geezer, the sequel to Billy the Kid - Shoe
    1. leftisright | Dec 23, 2008 08:26am | #5

      Bll,

      Do you suppose Troost is from around hereabouts? Not sure if I'd wanna be bragging about that street.....

      Lefty- From the real side of the state line.

      1. Troost Avenue | Dec 23, 2008 12:11pm | #6

        Troost is on the blue side of state line. Well, almost. And yes, we do have running water over here.

    2. Troost Avenue | Dec 23, 2008 12:27pm | #8

      I just looked up the ProSet Trap Guard. Looks like a good product but, referring to your later post, maybe too expensive for Troost Avenue. On the other hand, it would be installed in Fairway. Would that be OK?

      1. leftisright | Dec 23, 2008 05:53pm | #9

        Dunno, if it was Overland Park will probably require 3 permits and a stamped engineers drawing. But I'm a homeowner so wadda I know?

         

        Lefty-One of the few DEmocrats in Johnson County

      2. User avater
        BillHartmann | Dec 23, 2008 06:01pm | #10

        Go for it..
        William the Geezer, the sequel to Billy the Kid - Shoe

        1. Troost Avenue | Dec 24, 2008 01:01am | #11

          Thanks for the ideas. Troost isn't so bad. We have lots of tulips in the Spring time and, now that we have concealed carry, we hear fewer gunshots in the night.

  2. jej | Dec 22, 2008 09:20pm | #2

    i would think a 1" air seperation above drain would work .can you raise the height of pan by placeing on a foam pad 

  3. User avater
    popawheelie | Dec 22, 2008 10:14pm | #3

    Is there a trap neaby? The reason i ask is because I have a similar situation.

    I have a laundry washing machine nearby with a trap. I was planning on using that trap because it stays wet.



    Edited 12/22/2008 5:16 pm ET by popawheelie

    1. Troost Avenue | Dec 23, 2008 12:18pm | #7

      The combined shower/lavatory drain is nearby and I could easily install another trap and T. Does it matter that that would be the second trap for both the shower and the lavatory?

  4. sungod | Dec 23, 2008 07:11am | #4

    Head off the ceiling joist so the height of the heater goes into the ceiling above. The heater just has to be high enough so the base/ pan can drain into the laundry stand pipe.

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