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).
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.
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.
Likewise, people ask, how many CFM do I need to winterize my irrigation system?
To obtain proper air volume, you will need to rent or buy a compressor capable of providing 20 to 25 cubic feet per minute (CFM) of air volume. Air pressure must not exceed 50 pounds per square inch (psi) during the blow out procedure. A pressure-regulating valve must be used to avoid over pressurization of the system.
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.
How do you hook up an air compressor to a sprinkler system?
Sprinkler systems feature a fitting to allow the connection of an air compressor. Locate the control panel for the sprinkler system. Close the airflow valve on the compressor. Go back to the control panel and manually open the sprinkler zone that is the farthest from the panel or at the highest point on the system.
How big of an air compressor do I need?
The amount of air volume or pressure you will need for a body shop varies widely, with some tools needing as little as 2 CFM, while larger ones requiring 20 CFM or more. The usual body shop air compressors range from 115 PSI, 145 PSI, or up to 175 PSI.
How do you winterize a Rainbird sprinkler 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:
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 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.
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.
What does scfm stand for?
Standard cubic feet per minute
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.