Shop Bathroom?

[unknown_element]

Trying to plan ahead here, i someday would like to have a full bathroom in my garage, for now i'd just like to put the pipes in. Do they need to be ran down past the frost line if tying in with the house? Im also putting in radiant heat and i hate the idea of drilling thru the foam, what did you do in your garage?

 

[barney rubble]

I just pee out the back door.

 

[trbomax]

I have one. The drain lines do not need to be below the freeze line but the supply does.The lines should be in sleeves where they come thru the floor,but may be spray foamed in place where they penetrate the foam so as not to provide a " insulation leak".The pics show part of my layout.Keep in mind that the floor drains are shown here too and must not be connected with the sanitary lines,that is a separate system.

edit) The first pic shows the layout that is under the slab.If you follow the pipes there are 2 floor drains and 2 vanity sinks comming off.Lookto the left by the 2x and you can see the sanitary stub. It looks like it connects to the floor drains ,but if you look closely you see it actually goes under the floor drain pipe and stops at the stake about 18' out.The 4" floor drain line comming out from under the slab is connected to a full shop width trench drain. That is hard to see but its there.The floor drain lines are vented by the 2 sink drain lines. The sanitary vent is not yet installed when the pic was taken because I wasnt sure where the wall was going to be,but it comes off the upstream end of the stool flange and runs inside the wall into the attic space. Up there all 3 lines are joined and run out the south gable wall. I dislike roof penetrations and avoid them at all costs.At the end of the drain line will be a 300 gal solids/oil separation tank which then has a single 30' long leaching line from it. The sanitary will have a 500 gal 2 baffel septic tank and 2-30' leaching lines. The tanks are not installed yet (its only been 3 yrs). Maybe next year.The ends of both 4" lines are marked with steel fence posts to make them easier to find (someday). The second pic apears to be the semi- inebreated plumber/excavator getting ready to take a **** before the system is connected.

 

[Mr Bingo]

Trbomax... I love that second pic of the inebriated guy working on the plumbing. LOL

 

[trbomax]

Trbomax... I love that second pic of the inebriated guy working on the plumbing. LOL

Hmmmm.... and who do we think it might be?

 

[James E]

Trbomax, you're not supposed to **** into the pipes until they're connected. LOL.

 

[Bib Overalls]

When I built my shop I plumbed in the sanitary lines and also a 2" line with a sweep so I could pull a PEX water Line. All of the lines ended with a coupler set about 1/4" below the final floor level. The couplers were filled with foam plugs held in place with duct tape.

When the concrete floor was placed the finishers troweled over the stubs which gave me a nice, even surface. The floor over the plumbing outlets was firm and showed no trace of the pipes underneath.

The "facility" was added about a year later. A few taps with a hammer broke away the concrete and I simply glued in the risers and the toilet flanges.

I did not put in a shower or a tub. Usually your plumber will want a recess in the floor for the trap. You can make this out of larger blocks of foam and, if you plan on walking over the area thicken the concrete cover a bit.

 

[denis4x4]

"The drain lines do not need to be below the freeze line but the supply does".

Roto-Rooter charges a minimum $275 to bring out the hot water unit to clear out frozen drain lines. Ask me how I know!

 

[trbomax]

It must have been plugged before it froze then,there shouldnt be any water in the drain lines if they fall correctly and dont have any low spots.The sanitary drain line on my house runs 150' to the tank. At the tank end its down about 24",where it comes out of the house its only 2/3 in the ground.Hasnt froze in 15 yrs.There is about 30' of it in the crawl thats anywhere from on the ground to 18" off the ground. The grey water line is a bit lower,8" deep where it comes out,then runs only 50' or so to the grey water tank. We get a deep frost too,water lines that are less than 5' are iffy,mine are 7'.

 

[sberry]

This is super handy. Keeps the regular bathrooms a lot cleaner. There is a partial sheet in front of the urinal, blocks view from about 3/4 of the place without fooling with doors, never notice anyone is there in most cases.

 

[csp]

Roto-Rooter charges a minimum $275 to bring out the hot water unit to clear out frozen drain lines. Ask me how I know!

Does your line have a belly (low spot) somewhere for water to collect?

 

[unknown_element]

anybody have pics of before the concrete was poured?

 

[bjcouche]

As for how deep the sanitary drain should be buried, Why not bury it the same depth as the water line? My detached garage is about 125' from the house and I had both the sanitary line and the plastic water line buried 4' below grade (code required 3'). Then I partially covered the trench, leaving a 2' deep trench and then added my electric, phone, etc (code required electric to be 18") in the same trench.
I didn't do PEX heated floor so I don't know what special requirements there is for that. For mine they just came straight up through the concrete floor with the drain and water lines.

Brian

 

[Desert1957]

Is this the Urinal?

 

[EOC_Jason]

Is this the Urinal?

Well, I don't think it's a wishing well...

 

[trbomax]

As for how deep the sanitary drain should be buried, Why not bury it the same depth as the water line? My detached garage is about 125' from the house and I had both the sanitary line and the plastic water line buried 4' below grade (code required 3'). Then I partially covered the trench, leaving a 2' deep trench and then added my electric, phone, etc (code required electric to be 18") in the same trench.
I didn't do PEX heated floor so I don't know what special requirements there is for that. For mine they just came straight up through the concrete floor with the drain and water lines.

Brian

Where does the sanitary end up that deep? Certainly not in a septic tank.When I built the place in Toledo the sanitary line was only about 3' deep,when it got out to the main sewer line there was a riser from the main up to it. Now the main was down about 7',but this was a city system.