(a) If an irrigation system is connected to a potable water supply and requires major maintenance, alteration, repair, or service, the system shall be connected to the potable water supply through an approved, properly installed backflow prevention method as defined in this title before any major maintenance, alteration, repair, or service is performed.
(b) If an irrigation system is connected to a potable water supply through a double check valve, pressure vacuum breaker, or reduced pressure principle backflow prevention assembly and includes an automatic master valve on the system, the automatic master valve shall be installed on the discharge side of the backflow prevention assembly.
(c) The irrigator shall ensure the backflow prevention assembly is tested prior to being placed in service and the test results provided to the local water purveyor within ten business days of testing the backflow prevention assembly.

Source Note: The provisions of this §344.52 adopted to be effective January 1, 2009, 33 TexReg 5713; amended to be effective July 26, 2020, 45 TexReg 4986