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Old 02-16-2008, 08:05 PM   #1
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Basement shower drain help..


I have, or should I say there was a bathroom in my basement, with shower, toilet, and sink. I removed everything, I was going to add a 2 inc pipe to the drain that sticks out of the ground so when I install the new shower it will reach. I was going to change the pipe and noticed that its a 2 inc p trap going into a 1 1/2 inc pipe then it goes down into the ground to the 4 inc stack. My question is a 1 1/2 inc pipe sufficient for a shower drain? Also is it okay that its 2 inc going into 1 1/2? Thanks

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Old 02-16-2008, 08:22 PM   #2
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Basement shower drain help..


are you very hairy? Just a thought on what the drain will have to put up with. If you can get at it without tearing up the world i would recommend replaceing it with 2". If not then just keep the draino handy and it'll be ok.

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Old 02-16-2008, 08:56 PM   #3
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Basement shower drain help..


Thats what I thought, it drain fairly good when the previous shower was there, but I think I am going to take out the jack hammer and start busting up the floor. I will have to open up the floor in order to get to the 4 inc stack, where I can cut it and add a pvc tee, 4x4x2. Thanks
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Old 02-16-2008, 10:58 PM   #4
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Basement shower drain help..


Good answer! Make plumbers proud!
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Old 02-16-2008, 11:09 PM   #5
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Basement shower drain help..


Yes replace existing with 2", thats how I would do it.
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Old 02-17-2008, 06:28 PM   #6
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Basement shower drain help..


im not a plumber but i stayed at a holiday in last night
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Old 02-17-2008, 08:00 PM   #7
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Okay, went to concur the drain pipe this morning thinking I will cut the cast iron slip in a 4x4x2 tee, and bam shower drain ready to go. Guess what ended up cutting the entire concrete floor in the basement, 37 ft of it!
When I dug up the shower drain area, I checked to see how the drain was connected because I didn't see a tee. The pipe had a hole on the top, and they had some sort of clamp on the main drain that had come off. The only thing that was holding it was the concrete on the top. It was like those gizmo that one use to tap on water lines for the refrigerator ice maker, you know the ones that always leak, but a bigger version of it. As I started to inspect the main sewer drain line, I noticed there was a hole underneath the pipe about the 2inc round and pipe was rotted. That when I threw my hat on the floor, spoke a little french and then set sh__! this whole pipe has to come off. I have everything out and ready for tomorrow to install new 4 inc PVC. My question is on the shower drain, I am going to use a 4X4X2 tee. Do I put the tee facing the 2 inc to the side, or do I put the tee with the 2 inc to the top? Also, I was planning to make a clean out near the end where it gets close to the City sewer. How can I make a clean out there? Do I use say a 4X4X3 tee, or do I use a 4X4X3 whye? Also what parts do I need? Thanks
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Old 02-17-2008, 08:14 PM   #8
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Use a 4 x 4 x 2 wye with street 45 of the wye not a tee for that shower drain, tilt to the side, invert at a 45 degree, then add another 45 elbopw and shoot towards the shower drain, don't forget to add a vent for that shower drain within 5' of the trap. For clean out use a wye fitting again.
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Old 02-17-2008, 08:31 PM   #9
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Okay Ron, I got a little lost there, I'm good up to the wye... Can you draw something there for me when you get a chance? I have a sink vent like 3 feet away, do I still need to add another vent seperate for that shower drain? Thanks, your a life saver!
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Old 02-17-2008, 08:44 PM   #10
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Here each fixture must be vented before you tie into the main or the branch line, so no you can't use the vent from the sink as the vent for the shower, I can't see your layout, so I'm talking blindly here.
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Old 02-17-2008, 08:48 PM   #11
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Okay, the layout runs perdicular to the wall, toilet, sink, then shower. So that means everything needs to be vented? Even the toilet it as well? Do I use wye fittings on all drains? How do I vent the toilet?
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Old 02-17-2008, 08:54 PM   #12
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I need pictures please of what your seeing there.
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Old 02-17-2008, 09:20 PM   #13
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Hope this helps. this is the layout. If I take a picture, all you will see is a big hole in my basement going from one end to the other, and a Big pile of dirt!
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Old 02-17-2008, 09:27 PM   #14
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Draw in the wall/s where the toilet and shower is showing, wall layout is needed and as seen there or as it will turn out as seen
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Old 02-17-2008, 09:44 PM   #15
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Basement shower drain help..


Ron, there will be a wall right behind the toilet, sink and shower. There will be a wall to the left of the toilet, and a wall to the right of the shower, door entrance will probably be by the toilet openning out. Hope this helps, I am sore even to type.

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