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 Gray Water Tank - Venting

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PriceCharming

  • Total Posts: 12
  • Joined: 12/9/2012
  • Location: Barbourville, KY
Gray Water Tank - Venting Thu, 01/10/13 8:31 AM (permalink)
Hello everyone!
 
I am getting ready to install my Gray water tank.
 
Do I need 2 holes in the top of my tank. One being a vent and one to the P traps or can I use one hole venting on top of the sanitary tee?
 
This is what I would like to do.
 
One hole:

Thank you
 
Randall
<message edited by PriceCharming on Thu, 01/10/13 8:51 AM>
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#1
    chefbuba

    • Total Posts: 1952
    • Joined: 6/22/2009
    • Location: Near You, WA
    Re:Gray Water Tank - Venting Thu, 01/10/13 10:18 AM (permalink)
    You need to ask YOUR HD their requirements on this.
     
    #2
      PriceCharming

      • Total Posts: 12
      • Joined: 12/9/2012
      • Location: Barbourville, KY
      Re:Gray Water Tank - Venting Thu, 01/10/13 11:13 AM (permalink)
      chefbuba


      You need to ask YOUR HD their requirements on this.


      Actually I was given our county Plumbing inspectors number last week so thats pretty good advice and will save me doing whatever I am doing twice.
       
      Thanks
       
      #3
        BTM676

        • Total Posts: 202
        • Joined: 12/8/2011
        • Location: Newfoundland, PA
        Re:Gray Water Tank - Venting Thu, 01/10/13 2:45 PM (permalink)
        Hey, when I installed the plumbing on my truck I added a vent a vent after the p trap and right before the check valve aka backflow connection. I have smooth flow of water going into the tank. My gray water tank has 3-3/8inch female connections, I removed the top cap to vent the tank. Hope this helped. My thread is yet another food truck. If u wanna see pictures.
         
        #4
          Chicnscoop

          • Total Posts: 291
          • Joined: 2/18/2011
          • Location: Andover, CT
          Re:Gray Water Tank - Venting Fri, 01/11/13 4:09 PM (permalink)
          When I built the trailer I found that the mech vent under the sink cabinet was not enough and the tank was getting airlocked even though technically it shouldn't have according to a licensed plumber. I ended up running a 1/2" pipe from the top of the tank up into the wall of the unit and through the roof with a couple elbows so rain would not get into the pipe.
           
          Let it breathe.
           
          #5
            chefbuba

            • Total Posts: 1952
            • Joined: 6/22/2009
            • Location: Near You, WA
            Re:Gray Water Tank - Venting Fri, 01/11/13 11:05 PM (permalink)
            Mine is vented through the roof with 1 1/2" pipe.....Flows like a river when I open the dump valve.
             
            #6
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