Harry Everhart wrote:
I am going to be running a hot water line up and over from the water

heater to a kitchen sink about 90 feet away. Presently the water goes

through a 3/4 copper pipe buried in the concert slab. I am going to
run
a 1/2 inch overhead pipe covered by insulation. I am doing this to
get
hot water faster - and not lose a lot of heat to the concrete slab.

I am the guy that was asking how much water is in a 1/2 inch by 100
feet
copper tube.

I went to Lowes and Home Depot and talked to the help there. I have
always used copper in the past sweating my own fittings. Both places
asked me to consider CPVC - it is much cheaper and they said easier
to
work with. Is it durable?

They also showed me coils of copper tubing - in K and L category.
What
is the difference in K and L copper tubing? It is more expensive than

CPVC - but you would have only one coupling overhead - not like the
CPVC.

They also showed me union joints that join CPVC and copper.

I appreciate comments on this job.

Harry

CPVC/PVC = easy, usually cheaper than copper a0nd very simple to repair
or make corrections/additions. Got a leaking joint, a can of glue, a
piece of pipe, couple fitting and a hacksaw, job done in a few minutes
at very little cost. My experiences in repair are from my sprinkler
system that has frozen at times. They are both as durable, if not more
so, than copper (they don't corrode). For looks use copper. Me, I
redid my entire house with CPVC 20 years ago and haven't had any
problems at all.

Harry K