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Author:
dnblknp (CA)
Hi Everybody,
New to the forum. I'm doing design work for a bathroom remodel in a residential condo building where our client would like to add a new soaking tub to the master bathroom. The building is in San Francisco and was built in the early 60s.
In order to do the rough plumbing for a new drain we would have to cut holes in the slab, which is unfortunately not an option in this building, so we are trying to find creative ways to add a free standing soaking tub without any new drain lines.
There is an existing walk-in shower with a 2" drain, so we are considering enlarging the shower pan and turning it into a "wet" area, with everything in that area sloped towards the existing drain. Then we find a tub that has a side outlet and let it discharge directly onto the wet area, and the water can then sheet flow towards the drain.
The way I see it, the new tub filler is essentially like adding a second shower head, and the tub itself isn't hard connected to anything at all. It's basically a large bucket sitting in the middle of a large shower pan, and everything slopes towards a 2" drain.
The total "wet area" will be around 3' 3" x 12' 6", and a little over 40 square feet.
Is there any reason this wouldn't work?
Thanks so much.
[imgur.com]
Edited 2 times.
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Author:
m & m (MD)
Yes it will work. There is no plumbing code book in the nation that permits it.
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Author:
hj (AZ)
Other than looking like something out of a "B" western movie, it will work.
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Author:
dnblknp (CA)
Thanks m & m,
What part of the plumbing code prohibits this configuration?
Thanks.
Edited 1 times.
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Author:
m & m (MD)
Paraphrase: each fixture must have its own individual trap, said trap must directly connect to the drain and vent system.
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Author:
packy (MA)
thinking about your idea.. i don't see where it is any different from a gang shower at the YMCA..
sorry to my friend from MD. i did a 10 x 10 bathroom for a woman who wanted the whole bathroom to be a barrierless shower. the whole 10 x 10 had a menbrane under it and it slopped to a trough drain. the toilet and a wall hung handicap lav were at the tigh end of the 10 x 10. yeah, you turned on a shower valve and the water just splashed all around.
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Author:
steve (CA)
You'll have to contact the AHJ at the SF Plbg Dept and see if he will approve your non-standard installation. Section 1.2.2 of the 2013 California Plumbing Code allows the AHJ to approve non-standard installations.
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Author:
dnblknp (CA)
Thanks for all your help.
I'll contact the plumbing department and see what they say.
Edited 1 times.
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Author:
hj (AZ)
They will probably say, "Why are you bothering us with that question?" It is an "indirect drain" just like thousands of drains in restaurants, (or your dishwasher),. The "one fixture/one trap" rule only applies to fixtures connected directly TO the plumbing system.
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