Gray Water Tank - Venting

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PriceCharming
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Gray Water Tank - Venting - Thu, 01/10/13 8:31 AM
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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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chefbuba
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Re:Gray Water Tank - Venting - Thu, 01/10/13 10:18 AM
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You need to ask YOUR HD their requirements on this.

PriceCharming
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Re:Gray Water Tank - Venting - Thu, 01/10/13 11:13 AM
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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

BTM676
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Re:Gray Water Tank - Venting - Thu, 01/10/13 2:45 PM
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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.

Chicnscoop
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Re:Gray Water Tank - Venting - Fri, 01/11/13 4:09 PM
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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.

chefbuba
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Re:Gray Water Tank - Venting - Fri, 01/11/13 11:05 PM
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Mine is vented through the roof with 1 1/2" pipe.....Flows like a river when I open the dump valve.