New sink drain trouble

[dstig1]

I'm finally getting around to putting in a laundry sink and cabinet and have run into a snag. The standpipe into the wall is set really low. The plumber set this one much lower than the others for some reason and it didn't become noticeable until I went to install the drain. It is centered decently enough, but I need to make up a good 6-8" drop in a very short distance. See pics below. I have a standard P trap kit with a 6" tailpiece here. If I lower the trap enough to line up with the standpipe (would need a much longer tailpiece) the trap looks like it will hit the cabinet floor and not sit right.

Sure I can grab a couple Street Ells and make the turn and then fit in the Marvel connector for the P trap connection, but I'm not sure how kosher that is. Looking for the "correct" way to do this... Any clues?

 

[ponytug]

If it were me, I would extend the pipe from the sink to the P-trap straight down. The part that you need is called a slip joint extension. For reasons like clogging and flow, I believe that you do not want anything besides a straight pipe from the wall to the P-trap.

I wonder if your plumber thought that you might put in a grease trap. There are code rules around well drain height around here.

All the best,

Peter

 

[dstig1]

The problem with that is the P-trap hits the cabinet floor if I extend the tailpiece down enough. Does not appear there is enough clearance to do it.

 

[dodge man]

Google “low clearance drain trap” and I think you’ll find something that’ll work.

 

[K5lwq]

Sure I can grab a couple Street Ells and make the turn and then fit in the Marvel connector for the P trap connection, but I'm not sure how kosher that is

This is what I would do. What difference does it make if the elbow is in the wall or in the cabinet? It will not hurt anything.

 

[dstig1]

This is what I would do. What difference does it make if the elbow is in the wall or in the cabinet? It will not hurt anything.

That was one thought that crossed my mind, but I wanted to check with The Collective first since I haven't run across this issue before...

 

[Racer4]

Get yourself a couple 1-1/2” sch 40, 90 degree elbows and a short piece of pipe. Put one elbow facing up on the pipe coming out of the wall, then the short piece of pipe with the other elbow into that with the opening facing you. That’s where you’ll put your trap adapter. Play with the height and angle to make it line up with your p trap. Mark everything with a sharpie marker so you can line everything back up again after you glue it. You can shorten the leg of the p trap if you need to.

ETA: you’ll need a street 90 for the top elbow.

 

[LS Tractor Owner]

^^^^^^ This! Very simple, not going to affect the drain flow. Not sure if they make "wide" turn 90's in 1 1/2", but those would be perfect!

 

[MossRoad]

Get yourself a couple 1-1/2” sch 40, 90 degree elbows and a short piece of pipe. Put one elbow facing up on the pipe coming out of the wall, then the short piece of pipe with the other elbow into that with the opening facing you. That’s where you’ll put your trap adapter. Play with the height and angle to make it line up with your p trap. Mark everything with a sharpie marker so you can line everything back up again after you glue it. You can shorten the leg of the p trap if you need to.

ETA: you’ll need a street 90 for the top elbow.

Wouldn't that in essence make an S trap, and that's not code?

 

[MossRoad]

????

Google “low clearance drain trap” and I think you’ll find something that’ll work.

Never knew such a thing existed. I looked them up... Nice!