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)..
Keeping this in consideration, how do I winterize my irrigation system?
How Do I "Winterize" My Irrigation System
- Insulate your assets: Shut off the water supply to the irrigation system.
- Stay in control: If you have an automatic system then you will need to "shut down" the controller (timer).
- Drain the pipes:
- Protect valves and backflow preventers:
Also, how many CFM do I need to winterize my irrigation system? Air Volume To properly blow out a sprinkler system, your air compressor needs to provide at least 20 cubic feet per minute. Most irrigation professionals recommend using at least 50 cubic feet per minute. Most air compressors will list their cubic feet per minute rating on the side of the tank.
Moreover, 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.
When should I turn off my irrigation system?
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.
Related Question Answers
How do I drain the water from my sprinkler system?
Manual Drain Valve - Locate the manual drain valves situated downstream of each zone valve.
- Turn off the water supply by closing the main valve to the sprinkler system.
- Open all the manual drain valves for each zone in the system, and leave them open so that all the water drains from the pipes and sprinkler heads.
How much does it cost to winterize your sprinkler system?
Sprinkler System Winterization Average Costs Hiring a professional to winterize a sprinkler system typically costs $50 to $150 depending on the system size and local rates. Air compressor rental runs approximately $30 to $60 per day. A half-day rental, which should be sufficiently long for the job, is slightly cheaper.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.How do you install an irrigation system?
- plot types and locations of sprinkler heads. Plan the System.
- install an anti siphon valve. Access the Water Line.
- dig the trench for system.
- attach one end of valve manifold assembly to water.
- attach risers using 90 degree connectors.
- level sprinkler heads with soil level.
- timer controls length and frequency of waterings.
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 you don't winterize your sprinklers?
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 blowout my sprinklers?
A sprinkler blowout is usually best done in October in the northern climate of the United States. When to turn off your sprinkler, however, can be a delicate balance of good timing and luck. Do it too early, and your lawn may lose precious water it needs to prepare for the winter.Will my sprinklers freeze at 20 degrees?
As a general rule, temperatures outside must drop to at least 20 degrees or lower to cause pipes to freeze.How do I winterize my sprinklers without a compressor?
Not all systems need to have the water blown out of them. 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.What happens if your sprinkler system freezes?
Freezing temperatures are one of the most common causes of damage to sprinkler systems. Frozen water expands, which can create tremendous pressure on pipes, manifolds and sprinkler heads. This pressure can cause serious damage to your irrigation system.How much does it cost to maintain a sprinkler system?
You may be able to avoid the average $250 in repairs with regular sprinkler maintenance. The cost to maintain a sprinkler system runs about $50 to $120 per service call. Proper care includes: activation in spring.What temperature should I winterize my sprinkler system?
The reason is because you want to winterize your sprinkler system BEFORE we experience several days of freezing cold temperatures, specifically below 32 degrees Fahrenheit. When temperatures drop below freezing, the water left inside in your sprinkler irrigation lines can freeze and cause extensive damage.Should sprinkler valves be open or closed?
Make sure the sprinkler valve is closed, unless it's the valve farthest from the main water source. You'll want to leave this valve open and remove the sprinkler nozzle to allow air to escape when you turn on the water.What is the difference between SCFM and CFM?
In the simplest terms, here's how you can picture the difference between SCFM and CFM. CFM is Cubic Feet per Minute, while SCFM is Standard Cubic Feet per Minute. 2. SCFM is the volumetric flow rate against a standard, whereas there's no standard for CFM.What does scfm stand for?
Standard cubic feet per minute
How do I protect my sprinkler system from freezing?
Shut off the water supply to the irrigation system. The main shut off valve for your irrigation system needs to be protected against freezing. Make sure it is wrapped with insulation (foam insulation tape and a plastic bag) to protect it from harsh winter temperatures and prevent it from freezing.How cold does it have to be for sprinklers to freeze?
Your lines must be drained or blown out using an air compressor before the first hard freeze. A hard freeze is when the outdoor air dips below 0 degrees Fahrenheit. Below the freezing point, some of the most critical components of a sprinkler system can be damaged.How much does winterizing sprinkler system 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.Can it be too cold to water your lawn?
Even if your grass is dormant, the roots still use water to stay hydrated during the cold months. Periods of drought, even if in the winter, can cause the roots to dry up and sometimes die. The grass might appear normal above the ground, but it could be weakened enough to die when stressed by warmer weather or disease. 
