Toilet below grade in garage

[ddurrett896]

Anyone add toilet/sink to garage that's below grade (house has crawl space)?

I can either do a Macerating toilet or build the bathroom on a platform, just like you would build a deck and route plumbing and water thru an old crawspace vent that is now in the garage.

One way better than the other? I'm not pulling a permit because the city kills us with a DFU count permit, building permit and increased property tax. Never selling this house and the kids can deal with it when the time comes. Thanks for the info!

 

[matt_i]

Its very common if you have a septic field built on relatively flat land and a toilet in the basement. You will need a lift station/lift pump which is a sealed "sump pump" system that is also vented into the house-stack.

Putting one in typically involves sawing and breaking out a portion of the slab, setting pipes and then repouring the slab section back around it. Obviously have to route the waste and vent lines and there's a check valve also to prevent reverse flow.

 

[mbatarga]

^ what matt said. We have such system in the basement for the full bathroom. Pump sends effluent from toilet, sink and tub up about 6 feet to sewage line out to septic tank.

 

[tlmartin84]

View media item 68042
DONE!

 

[Mickey O]

Below grade, but is it below the sewer? If not no pump needed. Me, I'd prefer not to have a pump and would consider a raised platform if needed because sooner or later the pump will take a **** and replacing it is a crappy job, literally.

 

[mnoeltne]

Below grade, but is it below the sewer? If not no pump needed. Me, I'd prefer not to have a pump and would consider a raised platform if needed because sooner or later the pump will take a **** and replacing it is a crappy job, literally.

This.

First check where the actual sewer pipe is. As Mickey O said, the garage may be below the level of the house and it's plumbing, but if the main line is far enough under ground, you may be able to just tie into it.

Otherwise it sounds like it wouldn't be difficult to do a raised platform, so in your case that is much simpler than adding a lift station.

 

[Bondo]

Ayuh,.... Ditto these 2,....^^^

The toilet needs to be higher than the sewer pipe, but can still be below grade,...

 

[hedgehog]

And you find the sewer pipe above where you want your toilet, you can install a toilet with an integrated waste pump. They also have provisions built in to pump out the sink waste water

 

[tjdux]

Number 1 get a wide mouth gatorade bottle #2 go in the house

Sent from my SM-G900V using Tapatalk

 

[marinusdees]

**** runs downhill. Hot goes on the left.

 

[FullRaceMerc]

If you use a pump, it needs to be downhill from the toilet, but not necessarily beside the toilet. If the pump can be placed outside the building it is much better for future problems or service IMHO. Nothing like having a failed pump indoors.

 

[glentre]

My father was a plumber. He always said that the only thing you need to know about being a plumber is that "**** runs downhill and payday is on Friday".

Glen

 

[Sokoloff]

and "don't lick your fingers"

 

[FullRaceMerc]

...or put your pen in your mouth.

 

[onewheat]

Macerating toilet ***** - they are loud and disgusting. The waste pump works well and you can have a regular toilet.