Boomerweps wrote:
Many of the so-called pressure regulators are really only FLOW restrictors. The pressure out the faucet is limited by the flow. Once you shut off the water in the TT faucet, the pressure will build through the FLOW restrictor. If it is high enough pressure, it can still blow a hose or fitting. Once the fitting blows, then your leak in the trailer will be restricted to the 50-60# flow of the device ;(
Hence the recommendation, ALWAYS shut off your water AT THE SOURCE when away from your RV.
I have never seen a "flow restrictor", the cheap barrel shaped pressure regulators often reduce flow and they might fail, but they still are a regulator.