I'm working on the drain for my laundry, and there isn't enough space to fit a vertical drain pipe above the P trap.+
Is the vertical pipe coming in being slightly offset going to be an issue with the inspector? (The P trap itself is level).
Plumbing – Is it ok that the laundry drain trap is tilted
drainp-trapplumbing
Related Solutions
Consider that a typical washing machine holds roughly 40 gallons of water. Now imagine that all gushing out onto the floor at the same time. I've never seen this happen because of a washing machine failure, but I have seen it happen when the drain line from the washing machine pulled out and it wasn't a very pretty sight. If you have the opportunity to put in a floor drain, I'd do it - it doesn't add much work, but certainly beats ripping out a garage ceiling to replace wet drywall and insulation.
When you purchase a P-trap from the hardware store, you'll end up with these pieces (or something similar).
You'll also want to pick up a 1-1/2 in. PVC 90° slip-joint elbow while you're there.
You'll then want to connect the pieces something like this...
You'll then have to twist the pieces around, until you can get them to fit together. You'll end up with something similar to this.
Though I'm not sure this is code compliant anymore.
In the 2003 version of International Residential Code (IRC), there was this section.
International Residential Code 2003
Chapter 31 Vents
Section P3105 Fixture Vents
P3105.3 Vertical leg for waste fixture drains. A vertical leg (see Figure P3105.3) is permitted within a fixture drain of a waste fixture in accordance with the following criteria:
- Minimum trap diameter shall be in accordance with Table P3201.7.
- The diameter of Section A shall be equal to the diameter of the trap.
- The length of Section A shall not be less than 8 inches (203 mm) and in accordance with Table P3105.1.
- The diameter of Section B shall be one pipe size larger than the diameter of Section A.
- The length of Section B shall not be more than 36 inches (914 mm).
- The diameter of Section C shall be one pipe size larger than the diameter of Section B.
- The total length of Section A and Section C shall not exceed the distance allowed in Table P3105.1.
- Bends shall be the diameter of the largest connected section.
However, in the 2006 version, this section is gone.
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Best Answer
It looks like the hole drilled on the outlet side of the p-trap needs to be enlarged so the hub of the fitting can slip in, thus leveling the p-trap, thus keeping it from sticking out of the wall, however, ideally, and by most codes, there needs to be a larger drop directly from the installed washerbox, because as piped, when the washer drains, water will shoot right back out of the opening. The y fitting in the stack where this drain connects, needs to be lower, and you can eliminate some couplings in the lateral, by feeding your piping from the end of the wall.