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Old 01-14-2012, 04:03 PM   #1
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moving shower drain.


I need some advice. I am moving a shower drain in a basement of an older home. The drain needs to move over about 24" as you can see in the pictures the shovel is where the drain needs to be. I am dealing with old cast iron pipe. I have a couple of options that i am thinking of but am open to ideas. The current drain goes into the p trap and hooks directly into an 45 degree elbow so no room to cut and put a rubber sleeve in to connect to PVC. I am thinking of tying in just above the original p trap and run a horizontal line over to the new drains location and have a p trap at that location also. As you can see there is another drain line running right in the path of where I need to go. Can I have 2 p traps on the same line?
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Old 01-14-2012, 04:46 PM   #2
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I am moving a shower drain in a basement of an older home.
I am dealing with old cast iron pipe.
Subject to the code specifics in your area...
I suspect you'll need to go back to (at least) the horizontal DWV pipe all the existing shower drain piping runs into. From there, you'll adapt to PVC and pipe the new trap and drain as needed.

hth

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Old 01-15-2012, 09:23 AM   #3
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moving shower drain.


Not a good idea it may work to a point, you’ll have draining problems and in the event of a stoppage the snake would have trouble making all those turns. It can be done correctly just a little more work. You can go to the hub at the or the 45 or the wye, this where you might consider letting an experienced plumber set this up correctly, I can tell you that I see this all the time the exact same thing you where thinking of doing 9 out 10 we end up breaking ground to correct, the after the fact issues. Good luck
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Old 01-15-2012, 09:35 AM   #4
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moving shower drain.


ok so this is what i plan on doing after talking to a plumber at HD. I am going to take the joint apart at the 45 and use a fernco donut and to go to PVC. 90 up and 90 to go back horizontal. Over the other line and then p trap at new drain location. The only issue is it could be considered an s trap but being that it is a shower and a 2 inch line and one leg of the s is almost 24" long it shouldn't be a problem. I would tie into the other line but have no idea which way it travels and what it is for.
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Old 01-15-2012, 10:04 AM   #5
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...but have no idea which way it travels and what it is for.
find out.
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Old 01-15-2012, 10:13 AM   #6
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it slopes slightly towards the left. but the main drain is to the right in the picture. so how do I find out?
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Old 01-15-2012, 10:23 AM   #7
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it slopes slightly towards the left...
but the main drain is to the right in the picture.
That's inconvenient.

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...so how do I find out?
Observation, logical deduction and (if needed) experience.

Start with what MIGHT be at one end or the other of the pipe.
Go from there.
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Old 01-15-2012, 10:29 AM   #8
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It is in line with a floor drain to the left and a sink drain to the right.
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Old 01-16-2012, 07:19 PM   #9
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Thanks for the help and the advise. After consideration I decided to find out where the line that was in the way came from and tie into it. I ran hot water down one drain that I thought was connected and had no luck. then I moved to the other drain and sure enough the line warmed up. I used a diamond blade a sawzall and cut the pipe installed a pvc street wye and the new p-trap. everything works fine. now I just need to move on to filling in the hole and pouring the shower floor. Thanks again for the help.
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Old 01-16-2012, 08:15 PM   #10
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Quote:
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I ran hot water down one drain that I thought was connected and had no luck, then I moved to the other drain and sure enough the line warmed up.
I used a diamond blade sawzall and cut the pipe installed a pvc street wye and the new p-trap. ...everything works fine.
There was no way I could have told you to do all those things...
but I'm real glad that it all worked out well for you.

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