Personally, I prefer plastic. It's cheaper, easier to work with to cut
to size, and it is chemical-friendly and doesn't rot through when
homeowners dump draino into their drains. I see zero advantage to
The only place I use metal tubing for my tailpiece and drainage is in
commercial installations. And I generally only use metal tubing on
hospital or medical installations.
Hope that helps
On Wed, 2 Jun 2004 09:43:51 -0700, "John Smith"
The real advantage to Metal, BB is FIRE. One sniff of PVC pipe
or Siding.....you are a Dead Man.
We do use the Code as its a Public Health Code.
We did have a Fireman who monitored this NG. I'd like to
see his input on this.
I've seen many an apt. fire were the whole unit got gutted. The fire though
didn't penetrate the drywall or the vanities.all the ABS in the unit stayed
intact with NO VISIBLE fire damage. I'd be more worried about the carpeting,
sofas etc. If your in that space, the last thing I'd be concerned about is
breating plastic fumes.
I prefer 17 ga. brass over PVC. Anything less
than 17 ga. is crap, though. I've had problems with PVC traps cracking &
personally don't trust them. A sch. 40 ABS plastic trap works well but it's
more difficult to install & you'd have to be working with ABS pipe or adapt
to whatever pipe is existing. No matter what you use, though, effluent &
chemicals will take their toll on the material the trap is made of.
To be honest, I've never really explored why the PVC traps tend to crack.
And sometimes leak despite making them up snugly with dope. I only know the
17 ga. brass traps seem to hold up better...at least here in NJ and I'm
partial to them. Please do educate me as to why you think they crack/leak.
I'm all ears.
I haven't experienced the problem you've had with tubular PVC traps. I
was wondering why they cracked for you. I remember when they first came
out. I felt like a DYIer installing them, but they've withstood the test of
I guess no trap or tailpiece is foolproof, and certainly plastic is less
likely to rot out. But 17 ga. brass is pretty durable. The lighter grades,
20 & 22 ga., do rot out a lot faster, that's why codes call for 17
ga.brass. Maybe I'm ham handed or something but I generally have trouble
with the plastic stuff.
the pvc is more rugged.
I could not say i have ever seen a trap crack unless it was exposed to uv or
The metal will rot no matter what and you can bump it and make it leak.
"Maybe I'm ham handed or something but I generally have trouble
HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.