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 Adding a shower to a half bath drain options
Author: wwalker004 (CA)

Hello everyone. I’m adding a shower to my half bath. I have a home located in a PUD, and one of the options was to have the closet in the den area actually be a shower for the half bath to make it a 3/4 bath. I bought the house from the original owner who did not choose that option. I plan on converting that closet in the backside of the bathroom to a shower.

Everything in the bathroom is staying where it is already located. I’m simply opening the wall on the right side of the toilet (if you were on the toilet using it) as the shower entry. I’m just using the layout of the builder option. It will be a 36 x 36 shower. I am changing the toilet to a wall hung floating toilet. I was wondering if it was possible to convert the toilet drain in the floor to a regular shower drain, even though the shower will be in the separate shower area. I was figuring to slope the shower floor to the outer back right edge so the water will drain towards the toilet (now floor/shower) drain. I am retiring the bathroom floor, so the rest of the bathroom floor would all slope towards that drain as well, to make it the lowest point in the bathroom. Think of a European or Asian bathroom where there is a drain in the floor and you can get water anywhere.

Not sure if that is eve allowed or up to code, but wanted to do that. Would that make sense and still be functional? Or should I just open up the slab, and add in the shower drain line per code?

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 Re: Adding a shower to a half bath drain options
Author: packy (MA)

it sounds to me like you will have to gut the entire bathroom and change the DWV layout.

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