From a practical standpoint, as to what readily available at your local hardware store, I would choose the 1-1/2 ABS sanitary T plus an adapter at the wall. You can also use the 2″ abs and adapt down to 1.5″ abs in two abs pieces, then get an abs straight piece then the 1.5″ abs to male threaded tubing adapter.
Can I use a sanitary tee for sink?
A 45-degree wye fitting, double combo, combination wye and one-eighth bend branches, or other approved equivalent configuration is also correct. Although a horizontal-to-vertical use of a sanitary tee under a kitchen sink (as shown below) is a less likely to cause a drain problem, it is also not a rated application.
What’s the difference between a sanitary tee and a regular tee?
Sanitary tees are t-shaped sanitary pipe fittings used in the branch pipe of the main pipeline. Under normal use, sanitary tees connect a branch line to a vertical drain line or vent line.
Can you use Wye instead of sanitary tee?
Although a wye or tee may superficially appear to perform the same job of redirecting flow by 90 degrees, their performance is not the same. In a wye or long-sweep 90 the flow is positively directed in a specific direction. But in a tee there is not a smooth flow transition at the junction.
Can you use a sanitary tee on 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.
Which way does a sanitary tee go?
If you are using a sanitary tee to go from a horizontal vent pipe into a vertical vent the correct orientation is “upside down” from its normal usage. The curve of the tee should go from the horizontal direction curving up toward the roof.
Is there a fitting called a cross sanitary tee?
Double Sanitary Tee (Sanitary Cross) – Similar to a cross. This fitting differs from a supply cross fitting in that two of the ports have curved inlets. The fitting has been used in the past for connecting the drains of back-to-back fixtures (such as back-to-back bathroom sinks).
What is sanitary tee in plumbing?
PVC pipes are commonly used by plumbers. A sanitary tee is a plumbing fixture that allows liquids to drain while also allowing the plumbing system to vent. The fitting resembles a normal tee fitting; the sanitary tee, however, when viewed from the side will have a definite downward sweep to the center inlet.
Can you use a sanitary tee on its back for venting?
Sanitary tee can be on its back for dry vent, but the vent has to be a vertical dry vent.
Where do you put a long sweep tee?
Quote from the video:
Quote from Youtube video: 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. Use the long sweep 90.
Where should you not use sanitary tees?
Quote from the video:
Quote from Youtube video: All that water will come from here. And just the slightest amount of water will come back here too okay there's no real control on where it goes because it's just a straight angle.
Is it allowed to use double sanitary tees in vertical installation?
706.2 Horizontal to Vertical
Double sanitary tees shall be permitted to be used where the barrel of the fitting is not less than two pipe sizes larger than the largest inlet, (pipe sizes recognized for this purpose are 2 inches, 21/2 inches, 3 inches, 31/2 inches, 4 inches, 41/2 inches, 5 inches, 6 inches, etc.)
What is the difference between a wye and a tee Wye?
With a wye, the branch opening will not be perpendicular to the other openings. The branch opening of a sanitary tee is perpendicular, similar to a regular tee. However, with a sanitary tee the branch will have a sweep into the main body, rather than intersecting it perpendicularly.
Can a plumbing Wye lay on its side?
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.
What is an acceptable installation of a double tee Wye?
A double-wye fitting may be used in horizontal drain lines. The use of 1/8th bend elbows at the outlets of the double-wye fitting to form a double-combination pattern is acceptable. The minimum slope of the barrel of the fitting shall be “/-inch per foot.
