When a section valve is opened and the water travels unrestricted in the empty lateral pipes it creates a shock.
Water hammer fix sprinkler.
It is not uncommon for metal pipes in a plumbing system to bang loudly when a faucet is shut off suddenly or when a water using appliance such as a washing machine or dishwasher shuts off the water intake abruptly.
This article discusses both the diagnosis of and how to fix water hammer.
Continue this until the water hammer goes away.
This is the line where you will install a water hammer arrestor.
You can use three criteria to tell the difference between air in the pipes and water hammer.
Water hammer is a noisy annoying condition that can happen in sprinkler system and indoor water pipes.
Washing machines and dishwashers often cause water hammer because they have automatic valves that close.
If the water hammer is still there close the valve a little more and repeat.
When you turn a tap turn off listen for where the banging is the loudest to determine what supply line is causing the water hammer.
Now run the sprinkler system.
The condition is commonly known as water hammer the technical term is hydraulic shock and it occurs when water stops or changes directions suddenly.
When the system is turned on the water behind the air bubble will speed up the air will run out of the system and the result will be water hammer.
More than just produce an annoying clamor water hammer can actually damage the pipe connections and joints resulting in leaks and costly repairs or worse the noise may also indicate a larger.
If you hear the noise when the valves close if it occurs when the pump starts or if you hear rapid.
If your sprinkler system doesn t have a shut off you will need to install one close it down until it is about 50 closed.
How to eliminate a water hammer in a sprinkler system.
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When the water hammer is gone check your sprinklers.