Long Sweep 90 Off Trap?

[HereInOhio]

I am hooking up a bathtub drain (1.5” PVC). My question is I purchased a pee trap that came with the “U” shaped trap and a tight turn street 90. Can I swap out the 90 for a long sweep street 90? I need another 1/2” or so to connect to the drain pipe and this would do it if allowed. I’m under IPC if it matters.

Thanks!

 

[Terry]

How about a medium sweep 90 with a spigot end?

 

[Sponsor]

 

[HereInOhio]

How about a medium sweep 90 with a spigot end?

View attachment 71934

I held one up to the tight 90 and it seemed to be the same size which I was surprised of. Maybe I was mistaking but I will check again.

Is a long sweep 90 acceptable though? If so I know either way I would be good and will try to go with the tightest bend allowing the connection. I do realize the long sweep in the picture isn’t a street as I mentioned, it was the only long sweep I had.

 

[wwhitney]

I would think cutting back the existing line a few inches, adding a coupling and a short pipe segment, and then using the unmodified trap would be a simpler/better solution.

The long turn 90 will increase the seal depth, which I understand is allowed as long as it's still 2" - 4" in height. Would it be?

Cheers, Wayne

 

[HereInOhio]

removed

 

[HereInOhio]

I would think cutting back the existing line a few inches, adding a coupling and a short pipe segment, and then using the unmodified trap would be a simpler/better solution.

The long turn 90 will increase the seal depth, which I understand is allowed as long as it's still 2" - 4" in height. Would it be?

Cheers, Wayne

I will measure it later to see if it exceeds the max height.
It's in the joist above a basement and the duct work is in the way. I can barely get to the nub sticking out of the joist where it is. To cut it back I would have to go the next bay over and become Stretch Armstrong since it's going away at a 45. Not undoable but it would be a lot more convenient making this work.

Thank you.

 

[wwhitney]

A couple comments:

Looking at the pictures and the Charlotte catalog, using a street quarter bend (medium 90) might get you a little more length than the included trap street bend, without as much extra height as a long turn 90.

Another option that may give you enough length without increasing the height as much would be to reverse the included street trap bend, and use a coupling on the outlet (the extra length) with a short pipe segment between the trap elbow and the u-bend (the extra height)

Just some options to consider.

Cheers, Wayne

 

[HereInOhio]

A couple comments:

Looking at the pictures and the Charlotte catalog, using a street quarter bend (medium 90) might get you a little more length than the included trap street bend, without as much extra height as a long turn 90.

Another option that may give you enough length without increasing the height as much would be to reverse the included street trap bend, and use a coupling on the outlet (the extra length) with a short pipe segment between the trap elbow and the u-bend (the extra height)

Just some options to consider.

Cheers, Wayne

Thanks Wayne!

Just to follow up if anyone is searching in the future. I did lay out the trap as purchased vs. the trap with a long turn and from what it seemed to me the original trap was already at 4" (from bottom of U bend to bottom of horizontal run) so going any longer would be questionable. Probably would physically work from what I'm gathering but I just preferred to not have it questionable.

After sleeping on it I figured I have enough of a nub sticking out of the joist to put the trap on that there should be enough to put a coupling on so I did as you originally suggested and just put a coupling and extended the original pipe an inch or so. I try to not use couplings unless necessary but I'm just weird and like to do stuff the hard way, this project helped me break that habit.

 

[wwhitney]

Glad it worked out.

FWIW, the trap seal depth is measured from the top of the inside of the pipe at the bottom of the u-bend to the bottom of the inside of the pipe at the horizontal trap outlet.

But using a coupling is definitely a better choice than messing with the trap geometry.

Cheers, Wayne