How To Fix Water Hammer In My Sprinkler System
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This article discusses both the diagnosis of and how to fix water hammer.
How to fix water hammer in my sprinkler system. You can swiftly and easily install a water hammer arrestor in new or existing systems using a standard pipe tee. If your pipes make a banging noise when you turn off the flow of water you have water hammer. Either of these solutions will reduce vibrations and water hammer. Take note of anywhere you might be able to add pipe straps or insulation to stabilize the supply lines. Reconnect the sprinkler system and turn the water back on.
With the noisy valve activated and water flowing through it close the flow control clockwise until the water stops then open the flow control back up to a point a little past where the water. You can identify where the water hammer is happening by listening for where the banging is loudest. Attach a water hammer arrestor to the supply valve. If there is a wooden beam nearby you can strap the supply lines down. This device incorporates a pre charged permanent sealed air pocket to absorb potential shocks.
Now run the sprinkler system. It also discusses the difference between water hammer and air in the pipes. If the water hammer persists you need professional assistance. Watch the video for a simple solution that should make it stop. If the water hammer is still there close the valve a little more and repeat.
To test if this will eliminate the noise simply go to the main shutoff valve for the sprinkler system.