I've just redone one bathroom and found that the nipple between the
brass fitting back in the wall and the stop valve for the toilet tank
was gray PVC, such as one uses for sprinkler systems. I assumed that
this was not kosher and replaced it with a galvanized one.
Now I have come to the second bathroom and found that the galvanized
nipple is seriously corroded. Perhaps the PVC nipple in the first
bathroom was there for a reason?
What is the correct material to use here?
Apropos of this discussion I was in the electrical dept of HD a this PM
(actually two; I walked out of the first one after being unable to
locate the zip line or an associate who wouldn't ignore me to my face)
and while looking for what I needed saw the rack of electrical conduit;
it was actually marked "Schedule 40 Electrical Conduit." weird. I
thought "Schedule 40" referred to water pipe... This was light grey as
you say; a different color than I was thinking of. I do have some Sch.
80 PVC fittings laying around and they're still what I would call a
light grey but not as light as the conduit. I think I bought them
because I needed a reducer bushing for the outlet of one of my cisterns
and was only able to find the bushings in PVC and cast iron (and I
didn't want to use cast iron outside.)
replace "roosters" with "cox" to reply.
Schedule 20, 35, 40 and 80 (and perhaps others) refer only to the
weight and wall thickness of the pipe, with the higher numbers
thicker. PVC electrical conduit is available in Schedule 40 and
Schedule 80, with Schedule 80 required wherever the conduit could be
subject to physical damage.
Personally for drainage I prefer PVC over copper, galvanized, lead, or
all of those eventually clog or go bad.
PVC is smooth inside and drains better clogs less........... appears
to last forever if properly installed
cast iron is better for runs thru living spaces, if you replace cast
iron with PVC it will be dramatically louder
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