Basement bathroom : am planning on putting a raised basement bathroom in so that I don't have to dig into the

Question

cement or buy pumps or special toilets. In this bathroom I'm planning on having a shower and a sink of course to. So I have heard that I could use a 3 inch line and that I could tie it into the houses main sewage line which is vented, this line serves the upstairs bathroom since this house is a bungalo. So I was wondering if since the bathroom would be tied into the 4 inch line if it would be considered that it was vented or would I have to have a seperate line running from the new bathroom to the upstairs through the attic which would be alot of work and this way would be done if I knew the bathroom wouldn't be considered vented since it would be tied into the 4 inch vented line. Thanx. Also the new bathroom would be about 20 feet away from the main 4 inch line. And just to be clear what Im wondering is if the new bathroom is tied into the main 4 inch vented line would this mean the new bathroom is vented since it would be tied into a vented line.

Also would the bathroom drain properly if it was just tied into the 4 inch main vented line.

Answer 1

. you can even call a few plumbing stores and get their opinion. But i think your making a mistake. we just put a bath in the basement and we dug up the floor. and have an ejector pump. My uncle did what you want and the bath was always weird because you had to step up into it. check your codes first and make a list of costs, pros and cons of doing it both ways. then decide

Answer 2

It is possible to use a regular toilet but I'm not sure it's ur best answer. You as you have stated would have to have a raised plaform with a tank for the fluid and waste to drain to.... but here is where the tricky part comes..... you would have to invest in a sewage grinder and pump to raise the waste into the sewer line. I can't imagine that your sewer line is below your basement floor. In my house it is about 4 1/2 ft above the floor where it leaves the basement. your sink and shower could also drain into the same waste holding tank. They would also have to be raised. Last I heard for proper waste drainage (with solids) the drop is 1 inch every 10 feet..... too much or too little will not move solids properly. If you use a flush up toliet then the only thing you would need would be a regular pump and a holding tank to move the waste water from the sink and shower since there would be no solids too move. I don't know what the plumbing code is for hooking into the 4 inch line you speak of. There will have to be some drain traps to prevent sewer gasses from getting back into the house.... or perhaps the pump is a sealed system.... I am not familiar with them.

Answer 3

I take it my answer yesterday wasnt the answer you were looking for. It would be best to break the slab. It may cost a few dollars up front, but the return on investment is well worth it. You are asking for trouble down the road otherwise. 8'' minimum off the floor will give you the bare minimum pitch assuming that you get that close to the subfloor in the bath and the main stack is T'ed at the lowest point to the floor.

Answer 4

Check local plumbing codes, but I'm pretty certain that you'll need to vent the sink and shower separately. Keep in mind that water needs a vent to flow properly.

Answer 5

Codes vary by county and state. Call the county building inspector and ask them before you have to tear it out and do it over again. That way, you know for certain.

Answer 6

I don't know about your situation but many years ago I put a basement toilet in my home and I got a toilet that flushed UP. It cost more but it saved a lot of problems.


http://www.saniflo.com/?gclid=CNGwjK_Q7YgCFTopGgodq2C6iQ

http://www.upflushtoilet.com/