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Posted by Sacramento Dave on August 15, 2005, 2:13 pm
> Hi,
>
> I'm gonna be replacing the 60-yr-old 3/8" copper tubing that runs
> through our concrete basement floor from the oil tank to the burner.
> I'm gonna chisel out the old stuff, clean-up the channel, and then
> re-bury the new tubing with concrete.
>
> Anyway, from what I understand it's advisable to first encase it in
> some type of outer plastic tubing or conduit to prevent corrosion
> (that's why I'm replacing the stuff that's there). Any recommendations?
>
> Thanks,
> JohnB
>
Go to a plumbing supply They make a plastic sleeve ( looks like a small fire
hose/Blue) slide that over the pipe. If you are going to imbed it in the
concrete Then you might want to wrap it with foam pipe wrap. Comes in a
roll, 1/8 thick,6" wide. You could also use tem-mill tape. If you are
imbedding it in concrete expansion and contraction would be a concern. As
mentioned sliding it threw PVC would be good if you ever had to replace it ,
If you have any tight bends it could be a problem. Defiantly soft roll, you
don't want any joints in or under slab. If this can not be avoided joints
should be brazed.
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