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Posted by Grandpa on December 22, 2006, 9:41 am
kellyj00@gmail.com wrote:
> I'm about to start pulling the old galanized pipe in my 40 year old
> home. I plan to remove only the main lines and leave the vertical
> sections that lead to fixtures.
>
> Connecting those vertical lines to PEX seems straightforward. What
> I'm most concerned with is the quality of hte Galvanized that's there.
> If I start unscrewing, I understand I run great risk of damaging the
> pipe that's there to the point that I won't be able to screw on PVC
> connectors for the PEX, is it possible to rethread these galvanized
> pipes without having to remove them?
>
> Also, it does seem possible to knock out a section of the wall in order
> to run PEX all the way up...but how do I attach PEX so it's sturdy like
> the old galvenized was? Does it nail to a 2/4 with a clamp or
> soemthing?
>
Personally, I'd get rid of *all* the galvanized and replace the short
structural pieces with copper. But then our water has a tendency to
destroy galvanized pipe in short order.
Here's what we did for those areas that needed structural integrity:
For the tub and shower - we used half-inch copper to the water valves
and spigots; that meant sweating on a copper-to-PEX connector below the
valves. For behind the lavatory, we used PEX angle stop valves (quarter
turn) to get the 3/8 supply fittings. For under the kitchen sink, we
came up the original galvanized holes with two half inch copper pipes
then sweat threaded fittings on the top end and PEX on the bottom.
For us, that was less than five total feet of copper pipe and some
fittings. We also used two copper PEX-to-water heater adapters to finish
it off.
--
Grandpa
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