Trapped Drain Line in Crawlspace

[solidstructure]

Hi Guys,
Are drain line allowed to be trapped in a crawlspace?? I never seen this before, i'm located in Georgia.

[Gary Burnett]

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.

[Jerry Peck]

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.

[Dom D'Agostino]

Hi Guys,
Are drain line allowed to be trapped in a crawlspace?? I never seen this before, i'm located in Georgia.

Is this your first crawlspace?

Out of curiosity, where would you think a tub or shower drain line is trapped?

Dom.

[solidstructure]

Is this your first crawlspace?

Out of curiosity, where would you think a tub or shower drain line is trapped?

Dom.
Only been inspecting for 3 months and have done 2 crawlspaces.

[Gary Burnett]

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.

Jerry, Why do I feel like I've just been "Meatloafed"? You know, "two out of three ain't bad". For some reason I seem to remember that a washer drain can have a maximum 30" from top of pipe to the weir.

[Gunnar Alquist]

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.

[Jerry Peck]

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.

Traps with slip joints (not glued, etc) are required to be accessible - traps designed that they can be disassembled and reassembled.

Glued, soldered, leaded, etc traps

[Dom D'Agostino]

Only been inspecting for 3 months and have done 2 crawlspaces.

Well then, welcome to the fray.

You'll find some of the most interesting discoveries in crawls, that's for sure.

Dom.

[John Kogel]

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.

[Gregory Booth]

Hi Guys,
Are drain line allowed to be trapped in a crawlspace?? I never seen this before, i'm located in Georgia.

........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

[Roy Lewis]

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.

Yep! That's how it's done.