A wye is used to connect horizontally to vertical planes. A sanitary tee is shaped like the letter ‘T’, while a Wye is similar to ‘Y’. Sanitary tee is used for horizontal to vertical transition, and Wye is used for combining 2 lines into one horizontal line to maintain a flow without causing clogging.
Can a wye be installed horizontally?
Herein, can a wye be installed horizontally? A wye can lay on its side as long as it provides the proper grade or slope - 97 UPC 708, 97 IPC table 704.1. 1997 UPC section 706.3 specifically states that horizontal drainage lines connecting with other horizontal drainage lines shall enter through 45 degree wye branches.
Where to put the Wye?
If you can, I personally prefer to put the wye so that the offshoot is angled slightly down into the main run to create a natural direction for flow. The only thing I'd caution you on, if your code is picky about it, calculate your DFUs to make sure it is acceptable.
What is a wye fitting used for?
A standard wye is a Y-shaped fitting which allows one pipe to be joined to another at a 45° angle. A wye may also be used to split a branch line equally in two directions, such as the splitting of a main line into two smaller branches. You might be interested: Often asked: When does overwatch archives end? Can you use a sanitary tee for toilet?
Is it possible to add a wye to the main run?
Yes, it is/has been done often. If you can, I personally prefer to put the wye so that the offshoot is angled slightly down into the main run to create a natural direction for flow. The only thing I'd caution you on, if your code is picky about it, calculate your DFUs to make sure it is acceptable.
Can a double wye be installed horizontally?
A double-wye fitting may be used in horizontal drain lines.
Can you put a sanitary Wye on its side?
When using sanitary tees they may not be installed on its back with the side opening in a vertical position. The purpose for why this is not good is that when the waste hits the bottom of the horizontal pipe it will splash back upstream in the horizontal pipe.
How do I connect two horizontal drain pipes?
1:113:07The #1 DWV Plumbing Mistake (and how to prevent it). - YouTubeYouTubeStart of suggested clipEnd of suggested clipWith the Y you can use a combo fitting. This is called a combo Y and eighth Bend. Notice it's allMoreWith the Y you can use a combo fitting. This is called a combo Y and eighth Bend. Notice it's all one piece and it's approved. Now if you just need to turn your pipe horizontally.
Can you lay a combo on its back?
The rule of thumb is you cannot lay a sanitary tee on its side or back and you cannot install a combo in the vertical position. Must be a sanitary tee. You can connect a toilet to a combo, just not in the vertical position. I am a 20 year licensed plumber in Texas.
Can a wye be installed vertically?
Connecting a trap to a vertical drain with a wye fitting and a 45-degree elbow seems like a good idea. But it's not. As water drains down the steep slope at the wye, it can create a siphon effect such that water will be sucked out of the trap. And the empty trap will allow sewer gas to flow into your home.
Can you use a sanitary tee for horizontal drain?
Sanitary tees may only be used on drainage piping when transitioning from horizontal (1/4” per foot) to vertical. All others must sweep in direction of flow with proper drainage fittings.
How far can a drain pipe run horizontally?
If you have 1- 1/4-inch pipe, the horizontal distance of the vent ought to not be more than 30 inches. For a 1- 1/2-inc pipe the vent must be 42 inches away at the most while a 2-inch pipeline must have an optimum distance of 5 feet.
Can you put a 90 in a sewer line?
It's fine to have a larger-radius (sweep) 90-degree bend at the base of a vertical drainage stack where the wastewater starts to travel horizontally. It's also a good idea to have a sweep 90-degree fitting where a drain pipe pops out of a wall for a kitchen, vanity or laundry sink.
Can you use a wye for venting?
Absolutely! Most any fitting is perfectly acceptable and legal, just don't use any reducers, caps or traps in the venting.
Can you use a sanitary tee on its back for a vent?
Sanitary tee can be on its back for dry vent, but the vent has to be a vertical dry vent.
Can you use a 90 on a toilet drain?
You can have a 90-degree fitting under a slab, but it needs to be either at the base of a stack, as I've already described, or it can be under a toilet that sits on a slab.
How far can a toilet be from a vent stack?
6 feetAccording to the UPC, the distance between your trap and the vent should be no more than 6 feet. In other words, for the vent to work properly, it needs to feed into the drain line within 6 feet of the trapways that connect to it.
What is the difference between a sanitary tee and a Wye?
Connections to horizontal drain lines should be made with wye (Y) fittings. The fitting called a “ Sanitary Tee ” looks like it could do the job, but it doesn’t. A sanitary tee cannot be laid on its back, horizontally: It is shaped differently than the wye and should only be aligned vertically, or it may block up.
When can you use a sanitary tee?
A sanitary tee should be used when connecting a horizontal run, such as a waste arm to a vent stack or vertical riser. “ If you think it’s expensive to hire a professional to do the job, wait until you hire an amateur.”
What is a wye used for?
A standard wye is a Y-shaped fitting which allows one pipe to be joined to another at a 45° angle. A wye may also be used to split a branch line equally in two directions, such as the splitting of a main line into two smaller branches.
Can you use a sanitary tee for toilet?
You can ‘t use a tee, and you must have a vent between the connection and the toilet. Otherwise when another toilet is flushed, and you are sitting on the toilet, the “whoosh” may go the other way and give you a wet surprise.
Can you put a 90 in a sewer line?
You should design your wastewater pipes in a similar manner, for the most part. It’s a bad plumbing practice to have a hard 90 -degree bend in a horizontal drain line that’s buried in a slab or otherwise hidden. All drain lines should have a minimum fall of an eighth of an inch per foot of horizontal run.
Can a sanitary tee be used horizontally for venting?
Sanitary tees may only be used on drainage piping when transitioning from horizontal (1/4” per foot) to vertical. All others must sweep in direction of flow with proper drainage fittings.
Does a vent stack have to go straight up?
Vent pipes must be installed so they stay dry. This means that they should emerge from the top of the drainpipe, either straight vertically or at no less than a 45-degree angle from horizontal, so that water cannot back up into them.
