How To Hang Drain Lines so They Stay Straight and Secure - Fine Homebuilding
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Theres a Better Way


How To Hang Drain Lines so They Stay Straight and Secure

comments (5) April 7th, 2011 in Blogs
grateful.ed Chuck Miller, editor at large

Video Length: 1:07
Produced by: John Ross


There’s a better way to hang drain pipe. 

If you need to hang a drain line in a basement and make sure it stays at the proper slope. You could use some flimsy strapping and hope no one bumps it out of alignment, but there is a better way.


Further Resources

Preventing frozen pipes

Replace a trap and add a cleanout

Tapping into a cast-iron waste pipe


Bruce Norman of Portland, OR, installed rigid standoffs that are progressively longer as they move down the run

For example if he wants a ¼-in. per ft. fall, which is standard, one standoff will be shorter than the next by 1 in. if they’re on 4-ft. centers. The way this works, Bruce takes his plumbers tape and attaches it to a joist, runs the tape down through the piece of pipe standoff, then around the drain line and back up through the standoff. Then, he screws that to the joist and goes to the next piece. This ensures a constant slope and it makes for a very rigid installation. To ensure nothing gets bumped out of alignment, he puts in a 45 degree standoff as well, just to make sure everything stays put. 

 

 



posted in: Blogs, plumbing, basement

Comments (5)

Peterbxr Peterbxr writes:
We often forget that this technique of making our summer t-shirts commences inside the cotton fieldsThere are plenty of styles of water-resistant speakers from Poly Planar which can be well worth checking out


Posted: 10:55 am on December 22nd

kwhit190211 kwhit190211 writes: As a Journeyman Pipefitter, we use base plates, hanger bolts, threaded rod,& split rings for hangers on PVC, CPVC, ABS & other types & kinds of plastic. Plumbers aren't the only ones who work on plastic pipe.
Posted: 1:13 am on April 21st

FHBdotcom FHBdotcom writes: We went to plumber Bruce Norman with your concerns about this tip. Here's his response:

In this case, we are using vinyl plumber's tape as strapping, so no metal is in contact with the drain pipe. The vertical pipe that the vinyl plumber's tape is threaded through resists the upward thrust. This setup is 100% compliant with the UPC and a common practice here in Portland OR.
Posted: 10:42 am on May 9th

kwhit190211 kwhit190211 writes: Great tip? That's very un-professionable. What you need to use are base plates, threaded rod & split rings to make the job look right & be right.
Posted: 10:53 am on May 2nd

lordperceval3 lordperceval3 writes: Just a reminder that according to 301.1.1 of the UPC, no metal straps are to directly contact ABS or PVC. In addition, wire and plumber's tape is generally not allowed because the usually fail to resist upward thrust. But, this setup makes me wonder if it wouldn't, in fact, pass a plumbing code inspection. It appears that it might if that plumber's tape was plastic instead of metal, maybe?
Posted: 9:52 pm on April 23rd

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