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Old 03-14-2014, 11:37 PM
mitch1209 mitch1209 is offline
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Join Date: May 2004
Location: Fort Worth, TX
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Could use a 2nd opinion on a repair

Called out to a house due to low pressure on two front yard zones and drip lines not working after a new driveway installation. Driveway crew re-routed lines.
The two zones are mp rotators and each one is connected to two small (20') flowerbeds using drip line, each zone needs 5-6gpm.
The system is ran off of collected rain water with a pump giving 55psi.
One zone is not popping up until I find a 15' spray instead of a mp rotator (driveway crew). I hold the head down and the rest pop up.
Second zone pops up normal, but drip isn't working.
I quote to re-hook drip lines to each zone and replace 15' spray with a mp rotator.
I come back a week later to do work. After tying into an existing head on each zone for the drip and replacing 15' spray I check it out. Now both zones are coming on at the same time. If I turn on one zone at the controller the other works and vice versa.
I made sure both zones weren't getting power at the controller and even disconnected one of the solenoid wires on one just to be sure, but still happening. I rebuilt one of the valves to make sure they didn't get clogged up with debris from rain water system, but still. So, I went to one valve and manually turned it on and both came on. I went to the other and they both turned on as well.
Is there anything I'm missing? The zones had to have been joined together by the driveway crew? I'm 99 percent sure I saw them working independently a week before though. That's what's throwing me off.
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Old 03-14-2014, 11:52 PM
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1idejim 1idejim is offline
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Location: State of Jefferson
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Turn the ISO valve off at one of or both the valves and see what happens.
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Old 03-15-2014, 12:41 AM
kellanv kellanv is offline
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Location: Austin, Texas
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So, you have both disconnected and solenoids closed.

You open one valve manually and all the heads come on. You shut it then turn the other on manually and all the heads come on.

It sounds to me like both valves are parallel to each other. Possibly someone cross connected the two zones while doing the repair?
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Old 03-15-2014, 09:00 AM
mitch1209 mitch1209 is offline
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Location: Fort Worth, TX
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I think you are right. Thank you for the help
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Old 03-21-2014, 09:07 AM
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Sprinkus Sprinkus is offline
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Location: San Antonio, TX
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I fixed one like that earlier this week. Turns out the the foundation repair guys had busted the pipes where the ends of the bed spray and grass spray zones met. Of course they ended up piping the two zones together, using electrical conduit for pipe!
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Old 03-21-2014, 10:16 PM
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CAPT Stream Rotar CAPT Stream Rotar is offline
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Location: Cape Cod, Ma
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Sometimes irrigation contractors do that and leave...

Hoping there won't be any call backs..

lol...

Sounds like a Friday fast fix.
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Old 03-22-2014, 10:12 AM
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1idejim 1idejim is offline
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I'm surprised that ANYONE but a LI was permitted to repair any irrigation in Texas. I thought it was a hanging offense for doing so.
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Old 03-22-2014, 02:54 PM
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RhettMan RhettMan is offline
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Location: Texas
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en mexico, one is safer not to call them. I know Iknow, I dont know what I mean either. thats just what typed out :P
____
I dont understand the mp rotator, 15 spray, dripline combo ? what is that about?
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