I am going to be installing a tub in my basement on a concrete slab. I currently have a tub drain piple sticking out of the concrete about 12 inches and capped off. The concrete around the pipe looks like it was poured after the slab was because it is rough and uneven, unlike the even cement around the toilet drain pipe 30+ inches from it. My questions is this. Code requires a p tape. Is there a way for me to confirm if a p-tape has already been installed under the concrete without breaking the whole thing up?

Thanks

Matt

I am trying to install a tub in my basement on a concrete slab. I already have a drain pipe sticking out of the concrete about 9 inches. Looks like concrete was filled around it at a later time because not smooth like rest of slab. Is there a way for me to tell if a P trap is already been installed under the concrete other then breaking up the concrete to see. The pipe is currently sealed at the top.

I would love to not have to break up the concrete if I don't have. Any suggestions to seeing if there is a p trap already installed?

Thanks

Matt

If you can't tell if a p-trap has installed below the cement slab level on rough in plumbing in a basement is it possible to install one above ground without it affecting the draining of water? I am going to install a shower in my basement bathroom and I have high ceilings so instead of dig all the concrete out I was just going to build the shower on platform so I can run all the drain plumbing above ground. I will then have one step up into the shower. Can this p-trap be done above ground?

Thanks

Matt

"My questions is this. Code requires a p tape. Is there a way for me to confirm if a p-tape has already been installed under the concrete without breaking the whole thing up?"
If you have a pipe sticking up then you have a trap installed. Another way is to pour a gallon of water down the pipe and measure the depth by putting a stick down to the bottom. You should have 4 inches of water on the end. Take a hammer and tape around the pipe. There should be a square hole called a tub dap-out there. Sometimes the cement guys overpour the dap-out and the overpour must be removed.
Good luck, Tom

Tom,

How big will the square hole be around the pipe?
Thanks for your help.:o
Matt

About 14 X14" square. Regards, Tom

Great thanks. What is the purpose of the square hole if the pipe is already to go? Just curious why I have to jackhammer all the concrete back out of the hole?
Thanks again.

Matt

If I am just going to elevate the shower off the floor, do I have to break up the concrete around the drain pipe coming out of the concrete slab? Can I just put route it to the shower drain itself. I am trying to stay on budget and don't want to have to have someone come in a break up the concrete reroute the drain if I can just do it above ground and hide it behind a wall.

Thanks

If this is overpour around the raiser you shouldn't have to jackhammer it out. Just take a hammer and smack it. The reason for the dap-out is that the tailpiece from the tub shoe tee will connect to the trap raiser under the floor line. If there is no square hole there the plumber left you a shower rough in. If you wish to install a tub you will have to take a cement saw and make your own dap-out. The correct measure for a tub raiser is 15 1/2 inches off the side wall and 1 1/2 inches out from the front plate. If this isn't correct then it must be moved to set a bath tub.
Good luck, Tom

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Originally Posted by mattp

If I am just going to elevate the shower off the floor, do I have to break up the concrete around the drain pipe coming out of the concrete slab? Can I just put route it to the shower drain itself. I am trying to stay on budget and don't want to have to have someone come in a break up the concrete reroute the drain if i can just do it above ground and hide it behind a wall.

Thanks

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WHAT'S GOING ON? When did we stop discussing a bathtub installation and start to talk ab out a shower? I'm completely confused. Tom

Tom,
so if I want to put a stand up shower in,(ie Mustee shower base), I can just elevate it to create just enough slope to drain to the rough in plumbing. Have you seen this done. I have a 32x32 base and the drain is 2' off the wall. I don't want to take up concrete to run it 16inches in the center of the shower base. What are your suggestions.

THanks

Matt

Sorry for the confusion. I am trying to do whatever is easier. A stand up shower or standard tub. The wife does not care. I curretnly have a 32x32 Mustee fiberglass shower base but not sure if I should do that or a regular tub. What are your suggestions.

Sorry for the confusion.

Matt

First you must ascertain what you're roughed for. I've given you the measures for a tub rough and instructions on how to determine if you have a tub dap-out. You tell me what's easier. Regards, Tom

Tom,

I think this whole situation is just intimidating me. I have the drain pipe that comes out of the concrete. There is a hole that is probably close to 14x14 that is cut out of the slab and then covered again with concrete. I think I am just going to frame the wall to fit a standard tub and move on. I will finish the adjacent bedroom and leave the bathroom for later on when I can pay someone to do the work. Thanks for you help.

Matt

Don't be afraid to smack the overpour on the dap-out with a hammer and open it up. You may then set the tub in the normal way. Regards, Tom

Need assistance with drain hookup when on a slab.

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Originally Posted by cooper00

need assistance with drain hookup when on a slab.

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OK, I assume that the raiser's PVC. Make sure the trap raiser's open and above the tail piece of the tub waste and overflow. Prime and glue on a compression fitting, (see image). Slip the PVC nut and gasket on the tail piece and set the tub and tailpiece in the open raiser. Tighten the nut and you're home free. Good luck, Tom