High pressure and low volume won’t get the job done. You want high volume and low pressure to eliminate damage and completely blow out your sprinklers. Additionally, don’t mistake air pressure and water pressure. As you can see, blowing out your own sprinkler system isn’t as simple as pushing air through it.
You can winterize a sprinkler system without an air compressor if all of your irrigation lines are buried at a slight downhill slope. Simply shut off the main water supply to your system and open the drain valves at the end of each zone.
Secondly, how much does sprinkler blowout cost? Typical costs: Hiring a landscaping or sprinkler company to winterize/blow out a sprinkler system can cost $30-$160 or more, and typically costs about $55-$85 for an average home, depending on the number of irrigation zones in the system, the local cost of living and the month the work is done.
Subsequently, one may also ask, how do I purge my sprinkler system?
Set the compressor air pressure regulator to a maximum of 80 psi for rigid PVC pipe systems, or 50 psi for flexible black polyethylene pipe. Then turn off the water supply and set the system timer to open just one zone. Next, open the manual drain valve at the end of that zone (if equipped).
How do you drain a sprinkler system to freeze it?
Locate the sprinkler or main shut-off valve to your sprinkler system, which is usually in the basement. 4. Turn this off and open up the inlet drain valve, which will be located between the main shut-off valve and the pipe leading outside to your backflow device.
How do you winterize a hunter sprinkler system?
How to Winterize a Hunter Sprinkler System Locate the main water shutoff valves inside your home and turn them off by laying the ball valve lever perpendicular to the main water line. Locate the main drain valve, which is close to or on the main line shutoff valve, and place a bucket beneath it.
What happens if I don’t winterize my sprinkler system?
The Danger of Not Winterizing Your Sprinkler System If you forget to winterize your sprinklers, you run the risk that water will freeze in the irrigation valves, pipes and sprinkler heads. When water freezes, it expands causing the parts of your system to burst and destroying your sprinkler system.
When should I worry about sprinkler system freezing?
Sprinkler pipes and other components are at risk of freezing and breaking when temperatures drop below 32 degrees Fahrenheit. Immediate damage can occur to exposed pipes and sprinkler equipment with the first freeze of winter.
When should I turn off my sprinkler system for winter?
You should shut off your irrigation system just before temperatures in your region begin to dip below freezing at night. Don’t shut off your irrigation system too early. Often homeowners shut their systems down as soon as the fall season arrives because they believe that their lawn requires less water.
Do I need to winterize my sprinkler system?
Watching the Weather. When temperatures start to fall, it’s time to consider winterizing your sprinkler system. Your lines must be drained or blown out using an air compressor before the first hard freeze. As a general rule, you should winterize your system at least a week before the first freeze is expected.
How do you winterize a pool?
Winter Closing Balance the water chemistry. Remove skimmer baskets, wall fittings, cleaners, solar blankets and ladders from the pool. Clean the pool. Lower the water level in the pool. Drain all pool equipment. Lubricate the o-rings on equipment. Winterize plumbing to and from the pool.