"Rudy" wrote in message
news:VF2mg.65788$iF6.47644@pd7tw2no...

I bought the doublewide next door to rent out.

Sounds like PEX tubing.

I've never seen a mobile home with PEX in it (unless they re using it in
the NEW ones)
I have seen polybutylene (PB) grey and CPVC cream colored. Since its
crimped, I'm guessing PB.

If I was 'adding' to a PB system, I'd go with PEX ( red, blue or cloudy
'milk jug' colored plastic)
Cut in a "T" to the existing line and away you go. You can rent the
crimping tool and get all the PEX and fittings at Home Depot.

All my leaks in the Gray PB started went we switched to city water from a
well. A plumber friend said the PB would eventually leak from the chlorine.
There have been class action law suits against the mfg's. of PB for that
reason.