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Old 03-30-2013, 07:41 PM   #1
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Drip Irrigation Help!


I put together a drip irrigation system that looks as follows.
1 - From a garden spigot => small lead hose => multi connector manifold => timer valve (attached to an orbit timer) => 20 psi pressure regulator => pvc adapter => hose connector => 1/2 inch drip irrigation hose => connector => 1/4 inch drip irrigation tubing => 1/2 gph red drip emitter.

2 - The half inch tube runs around the garden as follow

26 feet straight (part 1) => elbow connector => 5 feet (part 2) => 30 feet straight (part 3).

3 - I have for 1/2 gph emitters towards the end of part 1 and one sprinkler type emitter towards the end of part 3.

When I turn the system on (I have the spigot turned on only ust a little bit), either manually or automatically for 1 minute..the 4 1/2 gph emitters are spraying a stream of water instead of dripping.


What am I doing wrong?

Thanks

Here is a picture of the system.

[IMG][/IMG]

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Old 03-30-2013, 08:04 PM   #2
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Drip Irrigation Help!


Has the system ever worked correctly? If yes, I would say the pressure regulator has gone bad.

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Old 03-31-2013, 02:10 AM   #3
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Drip Irrigation Help!


Quote:
Originally Posted by djlandkpl View Post
Has the system ever worked correctly? If yes, I would say the pressure regulator has gone bad.
No, this is the first time I am trying this one out.
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Old 03-31-2013, 10:41 AM   #4
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Drip Irrigation Help!


I would try swapping out the pressure regulator. It's one of 2 things, the pressure regulator or the emitters have dirt in them. I tend to doubt all of your emitters got clogged on a new system.

On a side note, 1 minute of watering isn't going to do anything. With drip, you should be running 45 to 60 minutes for deep penetrating watering.
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Old 03-31-2013, 11:03 AM   #5
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Drip Irrigation Help!


I would also suspect the pressure regulator.
I have setup 3 different drip systems for myself and for others. This means I know a little but not a lot
I usually start with a kit from home depot, is cheap and has everything you need to get started, and just add to it from there.
I have had defective pieces right out of the kit and had to return those pieces before.
On the other hand, my system is on its second year and never given any problem.

I kinda thought the emitters were colored coded, and the reds were the big 5 gph?
I suppose this could change from one brand to the next.
One thing I have found about sprayers, I would try to isolate them to run individually or at different times.
They use anywhere from 14 - 20+ gph and will rob the rest of the system of water.
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Old 03-31-2013, 11:18 AM   #6
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Drip Irrigation Help!


I thought about this some more.

Connect the pressure regulator directly to the spigot and see if it fixes it. If it does, then all the stuff in between is bleeding off too much water pressure and the emitters think the system is off and they are bleeding off excess water. If it doesn't, then most likely it's the regulator.

+1 on funfools suggestion on sprayers being on separate zones.
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Old 03-31-2013, 11:42 AM   #7
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Drip Irrigation Help!


Maybe your 1/2gal emitters are plugged. I do not see the orbit timer in the pic. Does the sprayer valve work? I would think too much pressure would impact more than just the 1/2 gpm emitters.
Good luck
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Old 04-01-2013, 04:05 PM   #8
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Drip Irrigation Help!


Folks,

Thanks for your help.

It turns out I had using the inline emitters instead of end of line drippers.
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Old 04-01-2013, 11:52 PM   #9
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Drip Irrigation Help!


You might try pressure compensating emmiters. But I must agree you have a pressure problem. You did buy drip and not misting emmitters right? I used to specifiy cuties that could be configured to either drip or mist.

What is the psi water pressure to everything in your house by the way. If it is too high you are potentially in for all kinds of plumbing problems. As typed, I think you have a bad pressure regulator. Some of the cheap ones can only handle so much coming at them though.

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