"ashroyer" wrote in message
...

I'm totally re-doing my bathroom and shower. I tore out the old shower
2 months ago, re-routed the plumbing, and capped off the pipes. At this
point I am ready to install my new shower mixing valve but I don't know
which pipe is hot and which is cold.

Are there any tricks to identify which is which short of uncapping the
pipes and letting the water fly??

Thanks!
Andy




--
ashroyer
you could put on a saddle valve(like you tap for a refrigerator water
line)and let the water run through it to see if it is hot or cold.