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Old 01-06-2019, 08:01 AM   #1
Mini-Skoolie
 
Join Date: Oct 2018
Location: SW Ontario, Canada
Posts: 17
Year: 2008
Chassis: G3500
Engine: 6.6 Duramax
Plumbing in reverse! :)

Hi folks, I admit I do things in an odd way, like putting in my entire bathroom before determining where my Grey water lines are goin into my not yet existing tank.
So, I have a shower toilet combo, the toilet drain being about 26" away from my shower drain. This will work for me using two wedge tanks stacked, one for black and one for grey....but my question is....CAN I directly plumb my shower drain into the tank? it sits immediately over the tank, I have maybe 6 inches of room between bus floor and top of tank. Is there an appropriate one way valve that will fit? What should I be using as my shower drain and grey water plumbing line? Do I have to create a "P" trap for the shower?
Thanks!! I am having a great time doing this, just need some nudges in the correct way!
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Old 01-06-2019, 08:49 AM   #2
Bus Crazy
 
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Join Date: Nov 2010
Location: Andrews,Indiana
Posts: 2,005
Year: 1991
Coachwork: Bluebird
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Engine: 3116 Cat 250hp
Rated Cap: Just the two of us.
If you plumb directly it will stink. Search for hepvo, takes much less space than p trap.
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Old 01-06-2019, 08:50 AM   #3
Mini-Skoolie
 
Join Date: Oct 2018
Location: SW Ontario, Canada
Posts: 17
Year: 2008
Chassis: G3500
Engine: 6.6 Duramax
Argh. I was kinda thinking that. ty...
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Old 01-06-2019, 09:01 AM   #4
Mini-Skoolie
 
Join Date: Oct 2018
Location: SW Ontario, Canada
Posts: 17
Year: 2008
Chassis: G3500
Engine: 6.6 Duramax
That should work, I can run it out of the shower drain into the hepvo 45, then into the hepvo and with a turn or two should go right into tank!
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Old 04-18-2019, 09:37 PM   #5
Bus Geek
 
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Join Date: Dec 2017
Location: Dawsonville, Ga.
Posts: 6,783
Year: 1999
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I was trying to find out what size plumbing was being used and found this video on the trap, sold me, couldn't be any easier.


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