Urinal install questions

[Innovate1]

Someone here suggested a urinal for the half bath in the detached garage (shop) I am building. I initially dismissed the idea but I could put one in pretty easily so am reconsidering. What's the typical/minimum width needed? How does the drain hook up? Is the trap in the porcelain? Never did more with them than use them...

 

[DieselNut88]

The trap is in the urinal. You need a bracket that mounts in the wall which has the mounting studs and accepts the drain connection. Also 2 brackets that go near the top which the urinal hangs from. They usually have a 3/4" supply to the flush valve.

 

[2level]

The one I have is 12"W x 18"H. Made by Gerber, smaller than most of their models. No built-in P trap - I made that with 1.5" ABS.

 

[Slackerzinc]

I also have one, get the one with out the built in P trap, my garage is only heated while I am in it and the built in P trap froze and split the urinal. So when I replaced it I went with the other style.

 

[sberry]

P trap after mine.

 

[The Cobbler]

any Ive installed or taken notice of, do not have installed ptrap. you have to add it.
I think code width is in the area of 3' width, but you probably want at least 30" , depends on your size too.

 

[Innovate1]

Minimum width for a toilet or urinal stall is 15" from the center to either wall making it 30" minimum. I'm thin so am ok with that although it feels crowded. More would be good to accommodate larger folks. Local codes may be more but that is national code as far as I can find.

 

[stokefire7]

24" would be side to side. 2" outlet , the urinal comes with a brass adapter that screws on to a male iron pipe thread .
Also has two brackets that are surface mount to secure the upper portion.
Min. operating pressure is 20 p.s.i.
Chicago faucets makes a push button type flushometer with a 1/2 inlet.

It won't work in a standard 2 x 4 wall.

 

[stokefire7]

There's also three different types.
washdown
siphon jet
blow out
(you can rule out the last one as it takes a 1" supply)

 

[Innovate1]

Have a 2 x 6 wall. Inner wall but 2 x 6 because AHJ requires 4" pipe up to first clean out. Yes, 1" supply seems excessive.

How does the urinal attach to the brass adapter? Seems like it would need some sort of rubber seal so it could be pushed on blind and still seal.

 

[JRC3]

Two urinals, why the redundancy?

 

[stokefire7]

The adapter has tapped 1/4 or 5/16 n. c. holes , they give you bolts or all thread. And there's a foam rubber gasket .

 

[Northislander]

FYI
https://www.garagejournal.com/forum/attachment.php?attachmentid=822499&d=1540493223
Here's a link to a previous post of mine with a pic of two styles of urinals. external trap and integral trap

 

[The Cobbler]

FYI
https://www.garagejournal.com/forum/attachment.php?attachmentid=822499&d=1540493223
Here's a link to a previous post of mine with a pic of two styles of urinals. external trap and integral trap

interested in your fold down sink, got more details?

 

[stokefire7]

The critical part of it is the drainage.

 

[stokefire7]

What's AHJ ?

 

[The Cobbler]

What's AHJ ?

Authority having jurisdiction

 

[tonyciambrone]

P trap after mine.

Amen

 

[nadogail]

Urinals are very handy but, if you can manage it. a toilet is handier.

 

[Innovate1]

Urinals are very handy but, if you can manage it. a toilet is handier.

Definitely will be a toilet. The question is adding a urinal. I'm kind of on the fence. Mainly thinking it will help keep the bathroom clean with visitors with poor aim or sloppy but I don't expect a lot of visitors.

 

[Innovate1]

The critical part of it is the drainage.

Thanks! The diagram is very helpful.

 

[BigGarage]

Definitely will be a toilet. The question is adding a urinal. I'm kind of on the fence. Mainly thinking it will help keep the bathroom clean with visitors with poor aim or sloppy but I don't expect a lot of visitors.

It's also a great water saver at a reasonable price. My urinal cost $99 and the flush mechanism cost around $120. This is in my 2nd floor half-bath.

EDIT: Here is a pic of the drain and mounting bracket.


Dennis

 

[mike93lx]

Definitely will be a toilet. The question is adding a urinal. I'm kind of on the fence. Mainly thinking it will help keep the bathroom clean with visitors with poor aim or sloppy but I don't expect a lot of visitors.

Ever been in a public restroom? Even with urinals, people manage to piss all over the floor.

I wouldnt expect it to be any cleaner than a toilet.

 

[59 wagon man]

waterless urinal and it will never freeze the trap and break. eliminates half the piping

 

[cderalow]

waterless urinal and it will never freeze the trap and break. eliminates half the piping

Waterless urinals have a higher maintenance requirement as the calcium builds up in the pipe and clogs it.

They also tend to stink after a few months even with sporadic use.


Sent from my iPhone using Tapatalk

 

[sberry]

The wet on the floor of mine is water, there is a handle can be operated away from it but sometimes people fool with the head and it gets some over spray. There is a sink there, the urinal saves constant traffic to the regular bathroom, don't have to wash grease there. A lot of the time we use outdoors as we are rural but in cold winter its good.

 

[JRC3]

A lot of the time we use outdoors as we are rural but in cold winter its good.

Nothing like trying to pee outside when you're wearing jeans and insulated bibs and , uhm, everything is cold.

 

[TractorJeff]

Nothing like trying to pee outside when you're wearing jeans and insulated bibs and , uhm, everything is cold.

And long underwear and tighty whity's underneath them!

 

[Plump]

And long underwear and tighty whity's underneath them!

Like my brother once said at a Packer game, "It's tough to use a three-inch hammer in four-inches of clothes!"

 

[59 wagon man]

they work on the turnpike for thousands of customers a day . I can't imagine the size of his kidney's

 

[RStewart]

Hehehe urinal has a p trap hehehe

 

[JRC3]

Hehehe urinal has a p trap hehehe

And a toilet has an S-trap.

 

[iowa4x4dieselman]

waterless urinal and it will never freeze the trap and break. eliminates half the piping

The "waterless" urinals require more frequent servicing. Per Kohler your supposed to put cleaner down it each day, and flush it with water every 2 weeks. Also urine will still freeze and they recommend "winterizing" it with rv antifreeze.

In a heavily used setting there is an upside of saving water, but for a personal shop I would prefer a flush one. Just my 2 pennies

 

[inphx]

On my garage urinal install i had tough time hiding in wall the street elbow off the drain with needed abs thread coupler into the brass flange. I modified the elbow to get it to work inside of steel stud 2 1/4(?) wall.

 

[Jackfre]

Make sure the wall is dead plumb before hanging a urinal on it.

 

[flat350]

24" would be side to side. 2" outlet , the urinal comes with a brass adapter that screws on to a male iron pipe thread .
Also has two brackets that are surface mount to secure the upper portion.
Min. operating pressure is 20 p.s.i.
Chicago faucets makes a push button type flushometer with a 1/2 inlet.

It won't work in a standard 2 x 4 wall.

If you bring the waste line up dead on center of the urinal and put a 2" C.O/box tee in the wall looking out at the drain height using a 2" **** ****** it works in a 2 x 4 wall,it's tight but it works,have done it a couple of times in the past.

 

[stokefire7]

True statement.

 

[2level]

Running the drain/waste line to the side of a urinal is another way to plumb with a 2x4 wall. Exposed pipes give it more of a industrial look. After all, it is a garage/shop.