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Old 04-14-2014, 10:15 AM   #1
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Running two lines off one irrigation pump?


I have an irrigation pump with the intake pulling water from the lake. The output of water is tee'd coming off the pump with an 1 1/2 line running up to my yard for a sprinkler (unfinished irrigation system) on one side and a 1/2 inch line coming off the other side of the tee going to a sink and fish cleaning table. Right now, it is all ran by simply flipping the breaker to turn off and on.

I would love to put a small pressure tank on the small line to use for water to the sink but hope to add some sort of irrigation timer to the irrigation side. Can both of these be done?

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Old 04-14-2014, 01:22 PM   #2
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Running two lines off one irrigation pump?


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Originally Posted by bassadict69 View Post
I have an irrigation pump with the intake pulling water from the lake. The output of water is tee'd coming off the pump with an 1 1/2 line running up to my yard for a sprinkler (unfinished irrigation system) on one side and a 1/2 inch line coming off the other side of the tee going to a sink and fish cleaning table. Right now, it is all ran by simply flipping the breaker to turn off and on.

I would love to put a small pressure tank on the small line to use for water to the sink but hope to add some sort of irrigation timer to the irrigation side. Can both of these be done?
Ayuh,.... So long as the tank is 'tween the pump, 'n irrigation valve,....
'n if the pump will tolerate that back-pressure, on restart,...
Ya, that oughta work,....


Last edited by Bondo; 04-14-2014 at 01:24 PM.
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Old 04-14-2014, 01:56 PM   #3
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Running two lines off one irrigation pump?


Second question...is there such thing as too small a tank?

Will the pump continue to run as long as the tank stays empty while irrigating? or will the pump come on, fill the tank, shut off till tank is empty, then come on to fill it back up again?

I would love to use a small 2 or 4 gallon tank...something to simply automatically turn the water on when being used.
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Old 04-14-2014, 02:55 PM   #4
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Running two lines off one irrigation pump?


The pressure tank should never empty. The pump should keep running and be able to maintain a working pressure in the system the entire time.

If your pressure tank is too small and you have a good pump, the pump may actually hit the shut off pressure and stop pumping until some of the pressure bleeds off.

If the pump cycles too often while irrigating, it will probably shorten the life of the pump.
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