What causes backflow in sprinkler system?

Backflow occurs when water moves in the wrong direction. From the irrigation system and back into the water supply. The cause of the backflow Preventer is simply the way water behaves. So the issue occurs when the water pressure in the system is too high compared to the water supply.

What is a backflow on a sprinkler system?

A backflow works by shutting down the irrigation water line when you lose water pressure. Keep your lawn looking great and protect your drinking water with a pressure vacuum breaker, double-check assembly, reduced pressure zone assembly, or atmospheric vacuum breaker which you can purchase here at Sprinkler Warehouse!

Can I blow out my own sprinkler system?

With a basic quick-connect coupling, you can use your air compressor to clear water from your sprinkler system for the winter. Just be aware that even the largest home compressor isn’t powerful enough to blow out the entire system at once. But you can probably blow it out zone by zone.

Does a backflow preventer reduce water flow?

No, BK’s back flow preventer may restrict the pressure some – usually it is not noticeable – a pressure regulator is recommended to control water pressure.

Where is the backflow valve on a sprinkler system?

Then, locate the pressure vacuum backflow device on your irrigation system – it will usually be a large round device at the top of your sprinkler mainline setup. Close off both of the valves leading to the backflow preventer. You can now remove the plug on the blow-out port, which will expose an air hose adapter.

How to blow out a sprinkler system at home?

How to Blow Out Sprinkler Systems. 1 Step 1 – Prepare the Lines. The first step is to turn off the irrigation lines and ensure no more water is able to flow into the lines. During this 2 Step 2 – Connect the Air Compressor to the Blow Out Port. 3 Step 3 – Blow Out Sprinklers. 4 Step 4 – Drain the Backflow Preventer.

Where is the blowout port on a sprinkler system?

Every system should have a blowout port built into the piping. It is generally best practice to start the blowout process with the zone furthest away from the compressor hookup, using valves to control the airflow. Do not connect your air hose to the test cocks or any connection before the backflow preventer.

What should the PSI be for a blow out sprinkler system?

The recommended PSI ratings for blowouts are not to exceed 50 PSI for general safety and efficiency. Never exceed this PSI when the system is using PVC piping, or you can crack the pipes.

How much does it cost to install a backflow preventer?

On average, backflow preventer installation costs about $300. Most homeowners pay between $135 and $1,000 depending on the size and type of the system. The device itself ranges from $35 to $600, while professional labor costs between $100 and $400.

Should I have a sprinkler system installed?

For those who are too busy to take care of watering the lawn themselves, installing a sprinkler system will take this task off your shoulders . A sprinkler system will maintain the beauty of your yard, and will keep it from a worst-case scenario of needing to be reseeded or re-sodded.

Can I install a backflow prevention assembly?

Yes , a permit must be obtained and there is a permit fee to have a backflow prevention assembly installed. The fees are determined by the building department of the municipality in which you are having the assembly installed. Checklist for Backflow Prevention Assembly Installation

Are backflow preventers required?

Sometimes Backflow Preventers are Necessary. Backflow devices are not only necessary to ensure the safety of the public ate supply, but they are often a requirement for certain homeowners and business owners. Those with irrigation systems, pools, chemical connections to main water lines or a well on their property need a backflow system.