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Capping Water Lines super2324us 01-09-2007
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Posted by on January 9, 2007, 6:00 pm


Hi I need to get remove a sink and am not to sure on how to cap the
pipes off. The supply lines are copper pipes. I know there are caps for
them but if i put the cap on and solder it will it be stong enough to
not blow off from the pressure of the water? As to the drain is there a
cap that I can use that will keep sewer gas from getting in to the room?


Posted by Speedy Jim on January 9, 2007, 7:14 pm


super2324us@yahoo.com wrote:
> Hi I need to get remove a sink and am not to sure on how to cap the
> pipes off. The supply lines are copper pipes. I know there are caps for
> them but if i put the cap on and solder it will it be stong enough to
> not blow off from the pressure of the water? As to the drain is there a
> cap that I can use that will keep sewer gas from getting in to the room?
>

Instead of capping the copper, install shutoff valves (stops)
which use compression fittings. No soldering, plus you have
shutoffs for next time.
http://www.plumbingsupply.com/angle.html

A wet rag stuffed in the drain is sufficient.
For a more permanent solution, get a Fernco Quick Cap:

http://www.fernco.com/QC.asp

Jim

Posted by David Martel on January 9, 2007, 7:17 pm


Super,

Yes the copper caps will withstand the pressure if you are a competent
solderer. I've never capped off a drain pipe but it's not hard to get a gas
tight seal. I think they use rubber caps attached with hose clamps.

Dave M.



Posted by Joseph Meehan on January 9, 2007, 7:20 pm


super2324us@yahoo.com wrote:
> Hi I need to get remove a sink and am not to sure on how to cap the
> pipes off. The supply lines are copper pipes. I know there are caps
> for them but if i put the cap on and solder it will it be stong
> enough to not blow off from the pressure of the water? As to the
> drain is there a cap that I can use that will keep sewer gas from
> getting in to the room?

Yes to both. How to do it and what to use depends on the particular
situation. I suggest that if you are questioning this, that you should not
be doing your own soldering.

--
Joseph Meehan

Dia 's Muire duit




Posted by Tom The Great on January 9, 2007, 8:11 pm


On 9 Jan 2007 15:00:41 -0800, super2324us@yahoo.com wrote:

> Hi I need to get remove a sink and am not to sure on how to cap the
>pipes off. The supply lines are copper pipes. I know there are caps for
>them but if i put the cap on and solder it will it be stong enough to
>not blow off from the pressure of the water? As to the drain is there a
>cap that I can use that will keep sewer gas from getting in to the room?


IMHO,

For the cut water lines, I think you're missing an opportunity to put
in some valves. As for the caps, I have capped water lines and
they've lasted 13+ years.

Now for your sewer line, they sell inside expanding plugs at your big
box stores. Just ask the person in the plumbing section for help.

Good luck,

tom @ www.ringtone-makers.com

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