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Thread: Trapped Drain Line in Crawlspace
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09-15-2017, 07:14 PM #1
Trapped Drain Line in Crawlspace
Hi Guys,
Are drain line allowed to be trapped in a crawlspace?? I never seen this before, i'm located in Georgia.
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09-15-2017, 07:57 PM #2
Re: Trapped Drain Line in Crawlspace
I vote yes! Where else would you find the shower, tub and laundry traps unless the floors were elevated?
It's when you don't see them that it's a problem. Now, if it is a second trap under an already trapped sink or other fixture it would be a bad thing.
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09-16-2017, 06:40 AM #3
Re: Trapped Drain Line in Crawlspace
For a tub or a shower, (in my best Bugs Bunny imitation) "Why certainly!"
However, keep in mind that the maximum vertical distance from the fixture outlet to the trap weir is 24", so it could also be a low sink, utility tub/sink, mop sink (which is on the floor), etc.
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09-16-2017, 07:30 AM #4
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09-16-2017, 08:08 AM #5
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09-16-2017, 08:31 AM #6
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09-16-2017, 09:05 AM #7
Re: Trapped Drain Line in Crawlspace
I am with Gary on this one. I seem to recall traps (other than tub/shower) were not allowed to be under the floor. I don't have time to look this up, but I'll try tonight.
Department of Redundancy Department
Supreme Emperor of Hyperbole
http://www.FullCircleInspect.com/
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09-16-2017, 09:13 AM #8
Re: Trapped Drain Line in Crawlspace
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09-16-2017, 10:45 AM #9
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09-17-2017, 07:44 AM #10
Re: Trapped Drain Line in Crawlspace
A bit of crawlspace advice.
When I started, crawlspace entry outside, I would suit up and get the dirty work done, then go inside. That is not the way to do it.
Go inside and run water in all the fixtures, and especially every shower stall and tub, before the crawl. You will find leaky drains that way.
There is a slip joint that is used in fiberglass shower stalls and they leak quite a bit. A shower that doesn't get used will have a dry seal, and it will leak when the new owners start using it.
John Kogel, RHI, BC HI Lic #47455
www.allsafehome.ca
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09-18-2017, 06:02 AM #11
Re: Trapped Drain Line in Crawlspace
........if you were inspecting in "cold country", that method of trapping would not work in unheated crawls. Some provision would be needed to keep the trap from freezing - one way would be a drum trap tucked within the insulated floor system. The manufactured home industry typically has elevated tub/shower floors so traps are within the conditioned space........Greg
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09-18-2017, 06:24 AM #12
Re: Trapped Drain Line in Crawlspace
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