1. Turn off the main water shut off valve (A) which provides water to the system.
2. Open all inlet and outlet drain valves on the system (B & E)
3. Open all testcocks on the system (F)*
4. Open inlet and outlet shutoff valves on backflow prevention assembly (C & D)*
*Leave these valves and testcocks at a 45 degree angle, or half open/half closed position.
**Call Accent Landscapes to winterize the remainder of your system. 548-8000