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Old 05-26-2007, 10:59 PM   #1
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How to Look for Leaks in Sprinkler System


The water bill is high. Had all the toilets and faucets checked and fixed. But still the water bill is high.

We have an automatic sprinkler system. And there was a construction done before around the house which might possibly hit the sprinkler system.

Since the yard is divided into several zones by the sprinkler, how will you know if there are leaks in that particular zone?

Is there a way aside from digging all the sprinkler tubes underneath?

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Old 05-26-2007, 11:39 PM   #2
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How to Look for Leaks in Sprinkler System


You may need to cap off all the sprinkler heads, turn on the water pressure, and see which area gets saturated, or if you have a good ear, you may be able to hear it gush.

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Old 05-26-2007, 11:43 PM   #3
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How to Look for Leaks in Sprinkler System


Have you checked your water service to the house?
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Old 05-27-2007, 12:24 AM   #4
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How to Look for Leaks in Sprinkler System


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You may need to cap off all the sprinkler heads, turn on the water pressure, and see which area gets saturated, or if you have a good ear, you may be able to hear it gush.
There are sprinkler, bubbler and drip system to be specific on all the zones. Can you explain further... I am a bit of a beginner in plumbing and sprinkler...
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Old 05-27-2007, 12:26 AM   #5
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How to Look for Leaks in Sprinkler System


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Have you checked your water service to the house?
There is a free water inspection provided by the county which checked the toilet and faucet... But the yard is not included in that inspection , so I pretty much rule out the interior plumbing.
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Old 05-27-2007, 01:22 AM   #6
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How to Look for Leaks in Sprinkler System


Ok, I am talking about the water line from the outside meter to the house they can also have a small undetected leak causing a high water bill. Easy quick test you can do is to shut off the water in or under the house and the irrigation at the shut off or double check valve if you have one then see if the meter is still showing water usage by the little round or triangle spinner.
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Old 05-27-2007, 01:55 AM   #7
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How to Look for Leaks in Sprinkler System


What was done on the inspection was put dye tabs on toilet, inspect the faucet & showerhead and replaced it with flow restrictor also. Then closed all faucets, shower , sprinkler, washer then look at the meter if there was no movement for 1 minute. There was no leak. What I was thinking was a probable leak in the sprinkler on the yard. Coz if there was a leak, it will gush only when the sprinkler is on since it is closed automatically.
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Old 06-01-2007, 11:50 PM   #8
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How to Look for Leaks in Sprinkler System


usually if there is a significant leak the water will have to run off somewhere. Study all the sprinklers when they are running. Usually the water will come up around the sprinkler head it is nearest, and the head will be surrounded by water first.
Our sprinklers usually don't contribute very much to the water bill.
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Old 06-05-2007, 10:29 PM   #9
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How to Look for Leaks in Sprinkler System


In order to elevate your water bill, you would need to have a leak on a pipe that has constant pressure on it. The sprinkler zone is only pressurized when that particular zone is turned on, in which case a leak is pretty irrelevant since you intentionally just turned on outlets "leaking" anywhere fron 1.5 to 5 galllons per minute. A leak somewhere large enough to change your water bill, should cause a constantly wet area around it. I would turn the timer off for a couple of days and check around the pressurized supply lines. Since sprinkler lines are generally not buried very deep, you should be able to locate a wet spot.

As suggested, I'd be suspect of the line from the meter to the entry into your house. Shut off the valve where the service enters your house, and check for water usage on the meter, which would indicate a leak in the supply between the meter and house. Sine this line is usually buried at a decent depth, it could not cause a wet area on the surface, particularly in sandy, well draining soil.

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