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Old 07-11-2001, 03:25 AM
Currier Currier is offline
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Location: Fruita, colorado
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hooking irrigation pump to auto sprinklers...

We have a lady that has an irrigation pump and one main line that has hose bibs. We are going to install a sprinkler system with automatic valves. It is a small lawn (3 zones). My question: Can the pump be wired directly to the controll box? I'm brain dead when it comes to the electronic stuff (most of our systems come off of city water = no pump) What is involved in making the pump turn on when the automatic valves engage?

We will install a low flow cutoff to keep the pump from burning up in the case of low or lacking ditch water.
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Old 07-11-2001, 09:46 PM
greasemonkey greasemonkey is offline
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You can turn the pump on and off with a "pump start relay" which should be available from your local irrigation supplier. A relay is an electricly controlled switch. It is wired to the "pump" or "master valve (MV)" terminal on the controller and switches the high (120 or 240) voltage pump power on whenever a zone is on. It would be good idea to have a flow switch wired into the system so that if there a drop in flow caused by a lack of water at the suction inlet that the pump would not burn itself out. keep in mind that the flow switch needs to be sized to the pump to assure accurate cut in and out.
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Old 07-12-2001, 02:28 AM
Chuck Sinclair Chuck Sinclair is offline
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This should answer your question.

http://communities.msn.com/WillowBro...hoto&PhotoID=1
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Old 07-13-2001, 01:00 AM
Currier Currier is offline
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Thanks for the info guys! it was exactly what I needed to know. My local rainbird dealer said the pump relay is called a Munroe Box and is sold along with the low flow cutoff. I appreciate your help!
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Old 07-13-2001, 01:43 AM
Chuck Sinclair Chuck Sinclair is offline
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Your Welcome
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