06:25AM | 12/28/02
Member Since: 12/27/02
1 lifetime posts
I'd like to install a toilet in my basement. There is a drain that could be used for one but it is located under the stairs and therefore has no access. There is also a floor drain in what is now the laundry room which is the main drain if the basement were to flood (which has never happened). Is it possible to place a toilet directly above this drain? It would mean that this drain wouldn't be available any longer in the event of a flood, but the other one would still be (although the floor does not slope towards that one). Is there anything preventing me from doing this? What does the code state?


10:10AM | 12/29/02
Member Since: 11/17/02
50 lifetime posts
No you cannot use those drains. A toilet requires both a drain and a vent to facilitate ther removal of sewer gasses when it flushes. In addition a toilet requires a minimum of a 3 inch horizontal drain. Even though the opening of the floor drain is large, the actual pipe servicing it is only 2 inch. If you put a toilet on it, you will have nothing but problems. The only way to install a toilet properly in a basement, is to break the floor and tie into the main soil line, then retie the vent system into the existing venting system. Get a book from Black and Decker on plumbing, it will go over all the basics of a plumbing system.
Good Luck
Plumbing Prof
Anoka Hennipin Tech College


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