Harold Kestenholz
Yes again, fourth year and Jerry. You would want to check the limits of your pex. Once you pressurize the tubing, just shut off the supply valve. The tubing will be tested at its pressure, but there will be no problem about what happens if the tube bursts while the supply is left open and unattended or in a distant unobserved spot. A slow leak will show up as a loss in pressure from the closed tubing.
