"BenignVanilla" wrote:


"Richard Holub" wrote in message
ink.net...
I have been reading all messages in rec.ponds and notice that everyone
is talking about using PVC for plumbing. Why? A plumber friend of mine
told me that PVC is more expensive than ABS, it does not stand to cold
weather as ABS and it sticks out like a sore thumb (white/black). Any
input?

Good question...I look forward to the answers. I am guessing it has
something to do with pressure. I know that in my house, which is about 18
years old, the vent pipes are black ABS, but all drains are white PVC.

Yes, wall thickness. The outside diameter remains the same, so the same
fitting will work.

DWV (Green) is Schedule 10 (I think) 4" and above.
ABS is like Schedule 20
PVC (white) is 40
PVC (dk gray) is 80


Each has a higher pressure rating, from almost none to very high. Iron
pipe (schedule 10, 20, etc), and copper (K,L,M) tubing, use the same
mechanism.

AFAIK ABS is used in irrigation. It uses a different solvent (glue)
than PVC, although you can get a combo glue that does it all.

IMHO the dark nature of ABS, and resulting difficulty in inspecting
joints, plays a part in why it isn't used in construction.

Personally, as a home owner doing some remodeling work, using the PVC is
fine with me.