DIY Chatroom Home Improvement Forum

DIY Chatroom Home Improvement Forum (
-   Plumbing (
-   -   Flexible vent pipes? (

Rob H 12-28-2008 02:53 PM

Flexible vent pipes?
I'm in the process of installing 'can'/recessed lights in my kitchen. I cut a hole for one of the csans and found a vent pipe directly above the hole. :oops:

Can I cut the vent pipe and add a flexible pipe/hose to get around the can?

TazinCR 12-28-2008 05:32 PM

If it is a sewer vent you will need to reroute it with pvc. No flex pipe.

Rob H 12-28-2008 06:36 PM


Originally Posted by TazinCR (Post 203549)
If it is a sewer vent you will need to reroute it with pvc. No flex pipe.

It appears to be a kitchen sink drain vent - it this considered a 'sewer' vent?

TazinCR 12-28-2008 09:07 PM

Yes and you should be able to reroute it with pvc.

Termite 12-28-2008 10:49 PM

It would have to be re-routed with PVC. There are no flexible options unfortunately.

JDC 12-29-2008 05:02 AM

Although there is 1-1/2", 2" and even 3" flexible PVC out there, it isnt approved for drain, waste and venting. Some 45s, a little bit of pipe and time though and you'll be home free.

Chemist1961 12-29-2008 06:40 AM

Before you tear down the ceiling to re route, if you're lucky you may be able to offset up diagonally or sideways a few inches by using a couple of 45 degree elbows with a 2-6" stub between them. Don't try to swivel or push your pipe sideways since you may crack a hidden joint down line and cause more work for yourself. Also remember to keep your pvc away from the future heat of your light pots.

Termite 12-29-2008 07:55 AM

There is no clearance requirement between DWV pipe and can lights, but it would be a good idea to maintain a little space for good measure.

Also, when you re-plumb, don't accidentally create a point to prevent water from passing or a point of accumulation. Any new plumbing should be level with the pipe's flow.

All times are GMT -5. The time now is 03:27 AM.

User Alert System provided by Advanced User Tagging (Pro) - vBulletin Mods & Addons Copyright © 2016 DragonByte Technologies Ltd.

Search Engine Friendly URLs by vBSEO 3.6.1