Any system can be tested this way…i.e.; Irrigation, supply lines to structures, well water supported systems, isolated lines within RV, Mobile Home Communities, sections of City Parks or virtually anything that can be isolated. Simply Attach an inexpensive pressure gauge to any faucet within a system that can be isolated….then turn off the supply. If the gauge loses pressure, the pressure is leaving from somewhere which could quite possibly be a leak within the system. To be sure, further check to insure all water fixtures are off within the isolated system being tested. If after returning water pressure, then turning the supply off again and the gauge continues to drop pressure the existence of a leak is highly probable. If a leak needs to be located for a simple repair, calling a Leak Detection Professional can often save hours of endless guessing, costs related to needless disruption to your property. Most professional services are completely non invasive and non disruptive to existing landscapes or structures.