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RonT 02-18-2011 05:17 PM

Replacing shut off valves
 
I need to install a new bathroom vanity and sink. The old sink will come out completely, but the shut off valves are rusted badly. The Valve is attached to a 1/2 galvanized pipe. Is there something I can soak the valve and connection with to assist with removal. My fear is that the galvanized pipe will break when I attempt to remove the valve. Any suggestions?

COLDIRON 02-18-2011 05:27 PM

Cut it all out get rid of the galvanized along with the valves install PVC or copper whatever.

Lightfoot 02-18-2011 05:32 PM

you might try soaking them really good with a penetrating oil. I use Knockr'loose or Ballistol, or even wd-40. I'd soak "em and let them sit overnight.

oh'mike 02-18-2011 07:17 PM

Mighty good chance the pipe will break off---be prepared to open the wall and upgrade the iron to copper.

There is a dandy 3/4 inch steel or brass compression coupling that allows you to saw off a 1/2" galvanized pipe --add the compression coupling on the cut pipe--then add 3/4 inch copper to the other end of the compression fitting and bush down to 1/2" copper.


Google Image Result for http://ecx.images-amazon.com/images/I/21zVpLsad0L._SL500_AA300_.jpg
Good to know if the pipes won't unscrew.--Mike--

the_man 02-18-2011 09:12 PM

use a torch and heat up that valve until its almost glowing. then use 2 pipe wrenches, it'll come out pretty easily


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