I just installed a new 'shutoff' valve on my house water supply line.

I'm using 3/4" PVC pipe, so I got a threaded, PVC adapter with a male
thread that screws into the shutoff valve and the PVC pipe glues into
the female side of the adapter.

OK, so I get 50' of pipe all glued together and connected to the water
meter and slowly open the valve on the water meter. Well, I have a
slight leak which appears to be from where the threaded adapter screws
into my new shutoff valve.

Should I have used teflon tape on the thread? Or should I have used
the PVC glue?

TIA

Lewis.

*****

On 1/26/2010 4:25 PM spake thus:

I just installed a new 'shutoff' valve on my house water supply line.

I'm using 3/4" PVC pipe, so I got a threaded, PVC adapter with a male
thread that screws into the shutoff valve and the PVC pipe glues into
the female side of the adapter.

OK, so I get 50' of pipe all glued together and connected to the water
meter and slowly open the valve on the water meter. Well, I have a
slight leak which appears to be from where the threaded adapter screws
into my new shutoff valve.

Should I have used teflon tape on the thread? Or should I have used
the PVC glue?

The former (teflon tape). You don't want to use glue except to glue
together slip joints.

You can just cut the pipe, reattach the valve with thread sealant, then
connect the cut ends with a coupling. (You'll want to trim back one cut
end to make the length come out the same as before.)


--
You were wrong, and I'm man enough to admit it.

- a Usenet "apology"

My boss taught me to teflon tape the male threads, and then
paint on Rectorseal #5 onto the male threads. That has
worked for me. It sounds like you'll have to cut the PVC,
dope the thread, and then use a coupler to put the PVC back.

I'm sad for the extra work.

--
Christopher A. Young
Learn more about Jesus
www.lds.org
..


wrote in message
...
I just installed a new 'shutoff' valve on my house water
supply line.

I'm using 3/4" PVC pipe, so I got a threaded, PVC adapter
with a male
thread that screws into the shutoff valve and the PVC pipe
glues into
the female side of the adapter.

OK, so I get 50' of pipe all glued together and connected to
the water
meter and slowly open the valve on the water meter. Well, I
have a
slight leak which appears to be from where the threaded
adapter screws
into my new shutoff valve.

Should I have used teflon tape on the thread? Or should I
have used
the PVC glue?

TIA

Lewis.

*****

"Stormin Mormon" wrote in message
...
My boss taught me to teflon tape the male threads, and then
paint on Rectorseal #5 onto the male threads.

Isn't it RectalSeal?
--
EA

That has
worked for me. It sounds like you'll have to cut the PVC,
dope the thread, and then use a coupler to put the PVC back.

I'm sad for the extra work.

--
Christopher A. Young
Learn more about Jesus
www.lds.org
.


wrote in message
...
I just installed a new 'shutoff' valve on my house water
supply line.

I'm using 3/4" PVC pipe, so I got a threaded, PVC adapter
with a male
thread that screws into the shutoff valve and the PVC pipe
glues into
the female side of the adapter.

OK, so I get 50' of pipe all glued together and connected to
the water
meter and slowly open the valve on the water meter. Well, I
have a
slight leak which appears to be from where the threaded
adapter screws
into my new shutoff valve.

Should I have used teflon tape on the thread? Or should I
have used
the PVC glue?

TIA

Lewis.

*****

What did you put on it? Nothing? I would probably have used teflon tape,
as I have done in the past on similar app;ications with good results.
Others in here may have different ideas of what is best. Larry

wrote:
I just installed a new 'shutoff' valve on my house water supply line.

I'm using 3/4" PVC pipe, so I got a threaded, PVC adapter with a male
thread that screws into the shutoff valve and the PVC pipe glues into
the female side of the adapter.

Is this PVC screwing into a metal valve or a pvc valve? If metal, I've
been told this doesn't work. If it's PVC, why wasn't it a simple glue
on valve?

wrote:
I just installed a new 'shutoff' valve on my house water supply line.

I'm using 3/4" PVC pipe, so I got a threaded, PVC adapter with a male
thread that screws into the shutoff valve and the PVC pipe glues into
the female side of the adapter.

OK, so I get 50' of pipe all glued together and connected to the water
meter and slowly open the valve on the water meter. Well, I have a
slight leak which appears to be from where the threaded adapter screws
into my new shutoff valve.

Should I have used teflon tape on the thread? Or should I have used
the PVC glue?

PVC rated pipe dope.

On Jan 26, 10:45*pm, "Bob F" wrote:
wrote:
I just installed a new 'shutoff' valve on my house water supply line.

I'm using 3/4" PVC pipe, so I got a threaded, PVC adapter with a male
thread that screws into the shutoff valve and the PVC pipe glues into
the female side of the adapter.

OK, so I get 50' of pipe all glued together and connected to the water
meter and slowly open the valve on the water meter. *Well, I have a
slight leak which appears to be from where the threaded adapter screws
into my new shutoff valve.

Should I have used teflon tape on the thread? *Or should I have used
the PVC glue?

PVC rated pipe dope.

Agree, I tend to cross thread PVC into metal when I use it with tape.

Jimmie

On Jan 26, 10:45*pm, JIMMIE wrote:
On Jan 26, 10:45*pm, "Bob F" wrote:



wrote:
I just installed a new 'shutoff' valve on my house water supply line.

I'm using 3/4" PVC pipe, so I got a threaded, PVC adapter with a male
thread that screws into the shutoff valve and the PVC pipe glues into
the female side of the adapter.

OK, so I get 50' of pipe all glued together and connected to the water
meter and slowly open the valve on the water meter. *Well, I have a
slight leak which appears to be from where the threaded adapter screws
into my new shutoff valve.

Should I have used teflon tape on the thread? *Or should I have used
the PVC glue?

PVC rated pipe dope.

Agree, I tend to cross thread PVC into metal when I use it with tape.

Jimmie

Thanks and thanks to all of you.

I used Teflon tape and it seems to be fixed now.

Kind regards.

Lewis.

*****