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?

Perce

On 03/22/09 07:41 am Bubba wrote:

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?

Either use a brass nipple or change it to copper.
Pvc is fine too if you like the pvc. Its installed everywhere now but
Im still not thrilled with having an entire house plumbed with it.

White PVC, yes. It was the use of *gray* PVC that I was questioning.

Perce

Percival P. Cassidy wrote:
On 03/22/09 07:41 am Bubba wrote:

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?

Either use a brass nipple or change it to copper.
Pvc is fine too if you like the pvc. Its installed everywhere now but
Im still not thrilled with having an entire house plumbed with it.

White PVC, yes. It was the use of *gray* PVC that I was questioning.

Perce


I believe that typically grey PVC is Schedule 80 so it might be OK. Not
sure if PVC is colored grey for other reasons or not.

nate

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On Mar 22, 6:01*am, Nate Nagel wrote:
Percival P. Cassidy wrote:
On 03/22/09 07:41 am Bubba wrote:

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?

Either use a brass nipple or change it to copper.
Pvc is fine too if you like the pvc. Its installed everywhere now but
Im still not thrilled with having an entire house plumbed with it.

White PVC, yes. It was the use of *gray* PVC that I was questioning.

Perce

I believe that typically grey PVC is Schedule 80 so it might be OK. *Not
sure if PVC is colored grey for other reasons or not.

nate

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- Show quoted text -

IIANM 'grey' is electrical conduit. I have used Sched 80 PVC and it
was same color as sched 40.

Harry K

In article , lid


White PVC, yes. It was the use of *gray* PVC that I was questioning.


Grey is electrical conduit. I have no idea what the differences are,
perhaps a higher dielectric rating?


--
Dennis

"DT" wrote in message
...
In article , lid


White PVC, yes. It was the use of *gray* PVC that I was questioning.


Grey is electrical conduit. I have no idea what the differences are,
perhaps a higher dielectric rating?


One differance is the Grey is more UV light resistant and holds up beter in
the sun.
Not sure of others.

On 03/22/09 10:36 am harry k wrote:

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?

Pvc is fine too if you like the pvc. Its installed everywhere now but
Im still not thrilled with having an entire house plumbed with it.

White PVC, yes. It was the use of *gray* PVC that I was questioning.

I believe that typically grey PVC is Schedule 80 so it might be OK. Not
sure if PVC is colored grey for other reasons or not.

IIANM 'grey' is electrical conduit. I have used Sched 80 PVC and it
was same color as sched 40.

This is a *threaded* grey PVC fitting of the kind that I have all over
the place in my lawn sprinkler system. Shinier and darker in color than
the PVC electrical conduit.

Perce

Personally for drainage I prefer PVC over copper, galvanized, lead, or
cast iron.

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

In article ,
"Percival P. Cassidy" wrote:



This is a *threaded* grey PVC fitting of the kind that I have all over
the place in my lawn sprinkler system. Shinier and darker in color than
the PVC electrical conduit.

Perce

Here's something I just pulled from the US Plastics website:

"Schedule 40 is available in gray and white, and is for socket fittings
only. It is NSF listed, but can't be threaded. Schedule 80 is available
in gray and is for socket or threaded fittings."

So it sounds like if you want threaded, you go with schedule 80, which
is gray. Whoever plumbed your toilets wanted a threaded fitting, so
that's what he went with. I think you're fine.

Now, I've seen and used plenty of threaded white PVC fittings, with
white sched. 40 pipe, but maybe they were sched. 80 fittings and perhaps
the sched. 80 being gray only is a new thing.

On 03/22/09 01:54 pm Smitty Two wrote:

This is a *threaded* grey PVC fitting of the kind that I have all over
the place in my lawn sprinkler system. Shinier and darker in color than
the PVC electrical conduit.

Here's something I just pulled from the US Plastics website:

"Schedule 40 is available in gray and white, and is for socket fittings
only. It is NSF listed, but can't be threaded. Schedule 80 is available
in gray and is for socket or threaded fittings."

So it sounds like if you want threaded, you go with schedule 80, which
is gray. Whoever plumbed your toilets wanted a threaded fitting, so
that's what he went with. I think you're fine.

Now, I've seen and used plenty of threaded white PVC fittings, with
white sched. 40 pipe, but maybe they were sched. 80 fittings and perhaps
the sched. 80 being gray only is a new thing.

OK, so it sounds as though the original grey PVC nipple was OK. I was
thinking that the grey stuff might be intended only for non-potable
water and might contain chemicals that could leach out and contaminate
the water we drink.

The lawn sprinkler system, which has many of these grey PVC fittings, is
of course fed from the same supply, but it has a backflow prevention valve.

Perce

wrote:
On Sun, 22 Mar 2009 07:36:01 -0700 (PDT), harry k
wrote:

On Mar 22, 6:01 am, Nate Nagel wrote:
Percival P. Cassidy wrote:
On 03/22/09 07:41 am Bubba wrote:
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?
Either use a brass nipple or change it to copper.
Pvc is fine too if you like the pvc. Its installed everywhere now but
Im still not thrilled with having an entire house plumbed with it.
White PVC, yes. It was the use of *gray* PVC that I was questioning.
Perce
I believe that typically grey PVC is Schedule 80 so it might be OK. Not
sure if PVC is colored grey for other reasons or not.

nate

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- Show quoted text -
IIANM 'grey' is electrical conduit. I have used Sched 80 PVC and it
was same color as sched 40.

Harry K
Sch 80 plumbing fittings are dark gray. Non metallic conduit is a
lighter gray

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.)

nate

--
replace "roosters" with "cox" to reply.
http://members.cox.net/njnagel

On 2009-03-22, Nate Nagel wrote:

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...

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.

Cheers, Wayne