Hi,

When I was moving my washer and dryer to a new location I was
surprised to find *no* joint compound or teflon tape in two places
where I would have expected it. 1. The connection between the flexible
gas line at either end - the dryer and the gas pipe. 2. At either end
of the washer flexible supply hoses.

Should there be dope on any of those threads? I have not been able to
find a definitive answer.

Many thanks in advance,

Aaron

Aaron Fude wrote:
Hi,

When I was moving my washer and dryer to a new location I was
surprised to find *no* joint compound or teflon tape in two places
where I would have expected it. 1. The connection between the flexible
gas line at either end - the dryer and the gas pipe. 2. At either end
of the washer flexible supply hoses.

Should there be dope on any of those threads? I have not been able to
find a definitive answer.

Many thanks in advance,

Aaron

Andy writes:
"Joint compound" isn't the material you are talking about... You are
talking
about "pipe thread dope"..

Dope is used ONLY where the threads are the point of sealing. It
fills in the
voids and makes the thread to thread joint airtight...

Gas lines are pressure fitted by smooth mating surfaces .
No thread dope is used because the threads
are not the place where the seal occurs.

Washer water hoses are gasket fitted. A rubber washer does the
sealing
with a pressure fit... No thread dope is ever used...

Using thread dope in either of these applications will probably
DECREASE
the ability to seal, because they are a foreign substance which coats
surfaces that should NOT be coated with anything...

Andy

Andy wrote:

Aaron Fude wrote:
Hi,

When I was moving my washer and dryer to a new location I was
surprised to find *no* joint compound or teflon tape in two places
where I would have expected it. 1. The connection between the flexible
gas line at either end - the dryer and the gas pipe. 2. At either end
of the washer flexible supply hoses.

Should there be dope on any of those threads? I have not been able to
find a definitive answer.

Many thanks in advance,

Aaron

Andy writes:
"Joint compound" isn't the material you are talking about... You are
talking
about "pipe thread dope"..

Dope is used ONLY where the threads are the point of sealing. It
fills in the
voids and makes the thread to thread joint airtight...

Gas lines are pressure fitted by smooth mating surfaces .
No thread dope is used because the threads
are not the place where the seal occurs.

Washer water hoses are gasket fitted. A rubber washer does the
sealing
with a pressure fit... No thread dope is ever used...

Using thread dope in either of these applications will probably
DECREASE
the ability to seal, because they are a foreign substance which coats
surfaces that should NOT be coated with anything...

Andy
Are you sure?...

I happened to be watching one of those Saturday morning shows that are
heavily sponsored by home depot and they carefully applied dope to all
threaded surfaces on a gas line appliance connection including the nut
on the supply line. So that must be the right way...

George wrote:
Andy wrote:

Aaron Fude wrote:
Hi,

When I was moving my washer and dryer to a new location I was
surprised to find *no* joint compound or teflon tape in two places
where I would have expected it. 1. The connection between the flexible
gas line at either end - the dryer and the gas pipe. 2. At either end
of the washer flexible supply hoses.

Should there be dope on any of those threads? I have not been able to
find a definitive answer.

Many thanks in advance,

Aaron

Andy writes:
"Joint compound" isn't the material you are talking about... You are
talking
about "pipe thread dope"..

Dope is used ONLY where the threads are the point of sealing. It
fills in the
voids and makes the thread to thread joint airtight...

Gas lines are pressure fitted by smooth mating surfaces .
No thread dope is used because the threads
are not the place where the seal occurs.

Washer water hoses are gasket fitted. A rubber washer does the
sealing
with a pressure fit... No thread dope is ever used...

Using thread dope in either of these applications will probably
DECREASE
the ability to seal, because they are a foreign substance which coats
surfaces that should NOT be coated with anything...

Andy
Are you sure?...

I happened to be watching one of those Saturday morning shows that are
heavily sponsored by home depot and they carefully applied dope to all
threaded surfaces on a gas line appliance connection including the nut
on the supply line. So that must be the right way...

Flare fittings don't get dope, tapered pipe fittings do.

Do you ask the people at HD for advice how to fix stuff?

nate

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

Nope. The gas line is a flare fitting and the water hoses have washers.
NOW , having said that, a little antisieze or pipe dope may prevent those
threads from sticking and rusting together. But for a seal, it's not
necessary.


s


"Aaron Fude" wrote in message
...
Hi,

When I was moving my washer and dryer to a new location I was
surprised to find *no* joint compound or teflon tape in two places
where I would have expected it. 1. The connection between the flexible
gas line at either end - the dryer and the gas pipe. 2. At either end
of the washer flexible supply hoses.

Should there be dope on any of those threads? I have not been able to
find a definitive answer.

Many thanks in advance,

Aaron

On Sep 15, 1:03*pm, Andy wrote:
Aaron Fude wrote:
Hi,

When I was moving my washer and dryer to a new location I was
surprised to find *no* joint compound or teflon tape in two places
where I would have expected it. 1. The connection between the flexible
gas line at either end - the dryer and the gas pipe. 2. At either end
of the washer flexible supply hoses.

Should there be dope on any of those threads? I have not been able to
find a definitive answer.

Many thanks in advance,

Aaron
Andy writes:

*"Joint compound" isn't the material you are talking about... You are
talking
about "pipe *thread dope"..

* Dope is used ONLY where the threads are the point of sealing. It
fills in the
voids and makes the thread to thread joint airtight...

* Gas lines are pressure fitted by smooth mating surfaces .
*No thread dope is used because the threads
are not the place where the seal occurs.

* Washer water hoses are gasket fitted. *A rubber washer does the
sealing
with a pressure fit... No thread dope is ever used...

* Using thread dope in either of these applications will probably
DECREASE
the ability to seal, because they are a foreign substance which coats
surfaces that should NOT be coated with anything...

* * * * * * * * * * * * * Andy


Andy's description of the different sealing mechanisms is 100%
correct.

Pipe dope / teflon tape are needed only when the thread to thread
contact are the actual sealing mechanism..


Connections where rubber washers, flares or compression ferrules do
the sealing, means no dope or tape.

But I've seen a lot of plumbers use dope on flares & compression
ferrules......because using dope makes the initial fit up less likely
to leak.

So despite the fact that dope should not be used....it often is.

cheers
Bob

On Mon 15 Sep 2008 12:13:54p, Aaron Fude told us...

Hi,

When I was moving my washer and dryer to a new location I was
surprised to find *no* joint compound or teflon tape in two places
where I would have expected it. 1. The connection between the flexible
gas line at either end - the dryer and the gas pipe. 2. At either end
of the washer flexible supply hoses.

Should there be dope on any of those threads? I have not been able to
find a definitive answer.

Many thanks in advance,

Aaron

I would use pipe thread dope on the gas line and teflon tape on the water
lines.

--
Wayne Boatwright

*******************************************
Date: Monday, 09(IX)/15(XV)/08(MMVIII)
*******************************************
Countdown till Veteran's Day
8wks 4hrs 6mins
*******************************************
You know what I always say...
*******************************************

Wayne Boatwright wrote:
On Mon 15 Sep 2008 12:13:54p, Aaron Fude told us...

Hi,

When I was moving my washer and dryer to a new location I was
surprised to find *no* joint compound or teflon tape in two places
where I would have expected it. 1. The connection between the flexible
gas line at either end - the dryer and the gas pipe. 2. At either end
of the washer flexible supply hoses.

Should there be dope on any of those threads? I have not been able to
find a definitive answer.

Many thanks in advance,

Aaron

I would use pipe thread dope on the gas line and teflon tape on the water
lines.

I can't address the gas lines, but why tape the feed lines? They are
just garden hose fittings, including the rubber washer. I've never seen
one leak if undamaged. The hose bursts, or the packing on the wall valve
starts dribbling, but the screw-on, never.

--
aem sends...

On Mon 15 Sep 2008 08:37:20p, aemeijers told us...

Wayne Boatwright wrote:
On Mon 15 Sep 2008 12:13:54p, Aaron Fude told us...

Hi,

When I was moving my washer and dryer to a new location I was
surprised to find *no* joint compound or teflon tape in two places
where I would have expected it. 1. The connection between the flexible
gas line at either end - the dryer and the gas pipe. 2. At either end
of the washer flexible supply hoses.

Should there be dope on any of those threads? I have not been able to
find a definitive answer.

Many thanks in advance,

Aaron

I would use pipe thread dope on the gas line and teflon tape on the
water
lines.

I can't address the gas lines, but why tape the feed lines? They are
just garden hose fittings, including the rubber washer. I've never seen
one leak if undamaged. The hose bursts, or the packing on the wall valve
starts dribbling, but the screw-on, never.

--
aem sends...


I know it's not standard practice, but I use it and feel that it gives an
extra measure of protection. It isn't essential.

--
Wayne Boatwright

*******************************************
Date: Monday, 09(IX)/15(XV)/08(MMVIII)
*******************************************
Countdown till Veteran's Day
8wks 3hrs 19mins
*******************************************
There's no point in getting angry, but
there is a stupid malignity to all
this that does try one's patience.

On Sep 15, 12:13*pm, Aaron Fude wrote:
Hi,

When I was moving my washer and dryer to a new location I was
surprised to find *no* joint compound or teflon tape in two places
where I would have expected it. 1. The connection between the flexible
gas line at either end - the dryer and the gas pipe. 2. At either end
of the washer flexible supply hoses.

Should there be dope on any of those threads? I have not been able to
find a definitive answer.

Many thanks in advance,

Aaron

Andy is right, Wayne is wrong. Sorry Wayne. Putting "dope" or tape
where it is not needed will cause more problems then it solves.

Nate Nagel wrote:
George wrote:
Andy wrote:

Aaron Fude wrote:
Hi,

When I was moving my washer and dryer to a new location I was
surprised to find *no* joint compound or teflon tape in two places
where I would have expected it. 1. The connection between the flexible
gas line at either end - the dryer and the gas pipe. 2. At either end
of the washer flexible supply hoses.

Should there be dope on any of those threads? I have not been able to
find a definitive answer.

Many thanks in advance,

Aaron

Andy writes:
"Joint compound" isn't the material you are talking about... You are
talking
about "pipe thread dope"..

Dope is used ONLY where the threads are the point of sealing. It
fills in the
voids and makes the thread to thread joint airtight...

Gas lines are pressure fitted by smooth mating surfaces .
No thread dope is used because the threads
are not the place where the seal occurs.

Washer water hoses are gasket fitted. A rubber washer does the
sealing
with a pressure fit... No thread dope is ever used...

Using thread dope in either of these applications will probably
DECREASE
the ability to seal, because they are a foreign substance which coats
surfaces that should NOT be coated with anything...

Andy
Are you sure?...

I happened to be watching one of those Saturday morning shows that are
heavily sponsored by home depot and they carefully applied dope to all
threaded surfaces on a gas line appliance connection including the nut
on the supply line. So that must be the right way...

Flare fittings don't get dope, tapered pipe fittings do.

Do you ask the people at HD for advice how to fix stuff?

nate

It was a cynical response...

On Sep 16, 6:16*am, George wrote:
Nate Nagel wrote:
George wrote:
Andy wrote:

Aaron Fude wrote:
Hi,

When I was moving my washer and dryer to a new location I was
surprised to find *no* joint compound or teflon tape in two places
where I would have expected it. 1. The connection between the flexible
gas line at either end - the dryer and the gas pipe. 2. At either end
of the washer flexible supply hoses.

Should there be dope on any of those threads? I have not been able to
find a definitive answer.

Many thanks in advance,

Aaron

Andy writes:
*"Joint compound" isn't the material you are talking about... You are
talking
about "pipe *thread dope"..

* Dope is used ONLY where the threads are the point of sealing. It
fills in the
voids and makes the thread to thread joint airtight...

* Gas lines are pressure fitted by smooth mating surfaces .
*No thread dope is used because the threads
are not the place where the seal occurs.

* Washer water hoses are gasket fitted. *A rubber washer does the
sealing
with a pressure fit... No thread dope is ever used...

* Using thread dope in either of these applications will probably
DECREASE
the ability to seal, because they are a foreign substance which coats
surfaces that should NOT be coated with anything...

* * * * * * * * * * * * * Andy
Are you sure?...

I happened to be watching one of those Saturday morning shows that are
heavily sponsored by home depot and they carefully applied dope to all
threaded surfaces on a gas line appliance connection including the nut
on the supply line. So that must be the right way...

Flare fittings don't get dope, tapered pipe fittings do.

Do you ask the people at HD for advice how to fix stuff?

nate

It was a cynical response...- Hide quoted text -

- Show quoted text -

You only need dope or tape on tapered pipe and make sure it is nat gas
compatable as reg teflon is not get the yellow stuff . Also check for
leaks before you walk away

If you have which I believe you do the flare fittings
there is no reason to have pipe dope or anything else on it
Tony


"Aaron Fude" wrote in message
...
Hi,

When I was moving my washer and dryer to a new location I was
surprised to find *no* joint compound or teflon tape in two places
where I would have expected it. 1. The connection between the flexible
gas line at either end - the dryer and the gas pipe. 2. At either end
of the washer flexible supply hoses.

Should there be dope on any of those threads? I have not been able to
find a definitive answer.

Many thanks in advance,

Aaron

On Mon 15 Sep 2008 10:23:01p, told us...

On Sep 15, 12:13*pm, Aaron Fude wrote:
Hi,

When I was moving my washer and dryer to a new location I was
surprised to find *no* joint compound or teflon tape in two places
where I would have expected it. 1. The connection between the flexible
gas line at either end - the dryer and the gas pipe. 2. At either end
of the washer flexible supply hoses.

Should there be dope on any of those threads? I have not been able to
find a definitive answer.

Many thanks in advance,

Aaron

Andy is right, Wayne is wrong. Sorry Wayne. Putting "dope" or tape
where it is not needed will cause more problems then it solves.

It depends on the fittings.

--
Wayne Boatwright

*******************************************
Date: Wednesday, 09(IX)/17(XVII)/08(MMVIII)
*******************************************
Today is: Citizenship Day
Countdown till Veteran's Day
7wks 5dys 18hrs 44mins
*******************************************
'Do What Thou Wilt' shall be the whole
of the Law.

"Blattus Slafaly" wrote in message
...
Aaron Fude wrote:
Hi,

When I was moving my washer and dryer to a new location I was
surprised to find *no* joint compound or teflon tape in two places
where I would have expected it. 1. The connection between the flexible
gas line at either end - the dryer and the gas pipe. 2. At either end
of the washer flexible supply hoses.

Should there be dope on any of those threads? I have not been able to
find a definitive answer.

Many thanks in advance,

Aaron

Compression fittings do not need thread compound.
--
Blattus Slafaly ? 3 7/8


No compration fittings on gas lines unless some quack did job
Tony