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tibberous 09-20-2011 01:42 AM

Can you use a floor drain for a toilet?
Is a floor drain just a regular drain that runs to the septic? I want to stick a bathroom in my basement. The main drain line runs out the basement wall about a foot off the ground - I was hoping I could tear up the floor and use the floor drain for the toilet.

Should a floor drain be connected to the septic? Is there anything I should do before I rip up the floor? I'm sure I'll have a lot better idea of everything once the floor is up, just don't want to tear up the floor, realize I can't use the drain, then have to re-concrete the floor.

oh'mike 09-20-2011 05:49 AM

Not enough info---

Do you have a septic pit and a sump pit?

tibberous 09-20-2011 05:56 AM


Originally Posted by oh'mike (Post 732080)
Not enough info---

Do you have a septic pit and a sump pit?

Almost positive I don't have a sump pit. I thought I just had a septic.

oh'mike 09-20-2011 06:01 AM

Septic pits pump the water into the house drains--they also have a second vent pipe---

Sumps pump outside.

md2lgyk 09-20-2011 07:53 AM

In any case, I doubt a floor drain is large enough for a toilet.

AllanJ 09-20-2011 08:35 AM

A floor drain per se, no. It has a trap not suitable for connecting a toilet to.

A toilet is its own trap and is connected to a drain pipe almost always 3 inches or larger that does not have a trap in it right under the toilet.

TheEplumber 09-20-2011 08:43 AM

In my area some older houses put their gray water (kitchen, laundry, floor drains) to dry wells, not septics. If yours is like this, you cannot put a toilet on it.
Also, floor drains are piped with 1.5" or 2" drains. A toilet requires a 3" drain

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