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cmrush

12:54PM | 01/08/05
Member Since: 01/07/05
1 lifetime posts
Bvplumbing
I am rennovating a ensuite access 1/2 bath that previously had a toilet and sink and another entrance from another halway. We have decided to wall up the additonal entrance and make just an ensuite bathroom and install a fiberglass shower. However the shower that I have found to fit, has the drain exactly situated over a floor joist. Knowing that cutting a floor joist is BADDDD!, I am at a loss as to how to make my shower drain work. I have thought about building a sligh raised platform for the shower, and then I would have room to move the drain over. Does anyone have any advice...Frustrated. Colin

LonnythePlumber

07:48AM | 01/09/05
It's a good idea to have an additional shower. It is not bad to cut a floor joist. You do need to have headers to transfer the support to adjoining joists. Also you can have a man made pan built where you can decide where you want the drain to be. Or you can make a ceramic tile base. Or you can shop more for different sizes.

Raising the shower would not be a good idea. You cannot have 90's in the tailpiece before the trap and get good drainage.

I would shop more first and then use headers as a second choice. You need to also plan on a vent for your shower.

annieduke04

05:13PM | 09/11/06
Member Since: 09/10/06
1 lifetime posts
I am a studying Plumbing student. I like your idea of raising the shower-not only will it solve the issue of space, but it will offer an interesting eye appeal. When you do this, be sure to get a proper slope on the pipe when installing, and use an offset if necessary to avoid any further obstructions. These simple steps will help ensure the flow of water at the proper 1/4" angle and help to reduce the possibility of back-flow. Good luck with your project!

Pipingdude

11:12PM | 09/11/06
Member Since: 09/06/06
11 lifetime posts
Dear CMRUSH,

You can call a carpenter and have them head off the area where the joist is in the way. Personally this is my first choice. You can also check the market for new products which address the problem you are inquiring about, I am not sure if any of these products have been approved.

I am enclosing a graphic and code reg's from UPC, codes might be different where you live.

Uniform Plumbing Code

(1) the maximum vertical distance allowed from the drain (strainer) to the weir of the trap is 24 inches.

(2) horizontal offsets between drain and trap are not permitted. This reg is flexible as now we have ADA compliance for sinks and lavs but I don't think it will apply to a shower installation.

(3) The vent pipe opening from a soil or waste pipe, except for water closets and similar fixtures, shall not be below the weir of the trap.

(4) If you want to go forward and disregard all codes, the platform height for your new shower will more than likely be 8 to 12 inches high.

Hope this helps you some.

Sincerely,

Jim


7959-installing_a_new_fib

Pipingdude

11:38PM | 09/11/06
Member Since: 09/06/06
11 lifetime posts


Have you looked at using a neo-angle shower pan?

Or a shower pan which has a different drain location?

This would change the location of the drain which would solve this dilemma.

Jim
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