new drain

mmhendrie · 07-08-2010, 01:15 PM

Guys - looking for some help. I just pulled out my old bathroom vanity and put in a new one. The new one is a different size, and when i try and connect the drain, i'm a few inches out and can't fit the new down spout to the main line. I've popped a couple of pictures below which show it better. Any advice?
thanks,
Matt

slomobile · 07-08-2010, 01:50 PM

Loosen the joint at the stub out and turn everything connected to the wall upside down so that the black piece opens downward. Now connect that other U shaped piece at the bottom of one of the pictures to the black piece. The result should be a sideways S that you can move at the joints to meet your downward pipe from the sink. Good luck.

mmhendrie · 07-08-2010, 02:32 PM

nice idea - is something like that typically accepted by code?

LateralConcepts · 07-08-2010, 03:25 PM

Quote:

Originally Posted by slomobile

Loosen the joint at the stub out and turn everything connected to the wall upside down so that the black piece opens downward. Now connect that other U shaped piece at the bottom of one of the pictures to the black piece. The result should be a sideways S that you can move at the joints to meet your downward pipe from the sink. Good luck.

What!? Don't think anyone understands nor, if I slightly understand, is that the proper way to do it.

mmhendrie · 07-08-2010, 03:28 PM

ok then - any other ideas out there?!

LateralConcepts · 07-08-2010, 03:35 PM

mmhendrie -

I would suggest replacing the P-Trap all together since that one appears to have maybe leaked in the past, is mismatched, and sealed with something.

You'll need an 1 1/2 PVC extension tube to connect to the gray tube coming down from you sink

Then you'll need a new 1 1/2" PVC P-Trap - The new trap arm (that goes into the wall) you'll be able to cut to the appropriate length with a hack saw

mmhendrie · 07-08-2010, 04:32 PM

thanks! the grey downspout from the sink is 1 1/4" - how do I go from 1 1/4" to 1 1/2" on the pipes?

LateralConcepts · 07-08-2010, 04:54 PM

Quote:

Originally Posted by mmhendrie

thanks! the grey downspout from the sink is 1 1/4" - how do I go from 1 1/4" to 1 1/2" on the pipes?

Your new P-Trap kit should come with a 1 1/2" X 1 1/4" slip joint washer. It will look like thicker material than the others

EDIT - Forgot to tell you then, you'll need an 1 1/4" extension tube not 1 1/2".

LateralConcepts · 07-08-2010, 05:00 PM

Is your old trap 1.5" or 1.25"?

mmhendrie · 07-08-2010, 05:05 PM

pretty sure the trap is 1.5"

LateralConcepts · 07-08-2010, 05:07 PM

Ok so sounds like you've got it figured out?

mmhendrie · 07-08-2010, 05:17 PM

I think so - just have to wait to get home and give it all a try - much appreciate the help!!!

LateralConcepts · 07-08-2010, 05:21 PM

Quote:

Originally Posted by mmhendrie

I think so - just have to wait to get home and give it all a try - much appreciate the help!!!

No problem!

Parts List

1 1/2" P-Trap Kit

1 1/4" Extension Tube

Good luck

mmhendrie · 07-08-2010, 06:37 PM

on a post-it in my pocket, waiting for my drive home via Home Depot!

mmhendrie · 07-08-2010, 11:50 PM

ok, "Dry fitted" everything - picture below - two questions though

1. nowhere in my kit did it talk of using tape, putty, silicone etc. - do i need any of that?

2. i'm guessing the weakest point is where the reduction part is from 1 1/2" to 1 1/4", right above the u-bend. Given that the u-bend is typically full of water, does it make sense to move the reduction part up the pipe and use the 1 1/2" extension pipe, so the "weak spot" isn't the bit always under water? get what i mean? i know nothing about drains, so this might be something i'm just pulling out of the air!