Preventing damage to your system

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1. Close the sprinkler supply valve tightly.
2. Open the interior supply drain; this may be a ball valve with drain or a boiler drain.
3. Do not close the main shut-off. Closing this valve will shut off the water to your house.
4. Open the exterior upstream drain, if present
5. Maintain ball valves in the open position
6. Open both test cock valves. You can use a flathead screwdriver.
   
   • Open:
   • Closed:
7. Remove cap from downstream air port
8. Allow water to drain from PVB and piping
9. Run a manual cycle on your sprinkler timer to relieve any pressure in the system and to allow the water above ground to drain.
10. Call Best Irrigation (248-879-6258) to schedule your winterization appointment
    Your underground pipes will be ok until we fully winterize your system; it takes more than a quick freeze to damage them.