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Old 10-05-2012, 07:31 PM
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Lawn Pawn Lawn Pawn is offline
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Sprinkler heads too deep ???

I'm only a mowing guy, but for my own satisfaction, is there a rule of thumb for how deep you let pop-up heads get until you raise them?.... if you even do.

Have been mowing this property since it was new construction, about five years now and some of the heads are three to four inches under the sod/black dirt height. Yes they all appear to be working fine but it seems like asking for trouble from an obstruction when retracting, with them receding this much.

Off main topic but... have noticed last three four times I have mowed I could feel the mower bog down and lug a bit over certain areas of this same lawn. When I would walk it trimming, same areas my feet would move side to side. Stopped today and I could push my finger full length into the ground! They are watering it into mush! Or maybe it could be a break in the line somewhere? Really surprised it's not rutting terrible. Did mention this to them but seemed unconcerned.

But my question was on the depth of the heads... thanks
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Old 10-05-2012, 07:59 PM
muddywater muddywater is offline
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They will wear out faster if they are that low because dirt will scratch the part of the rotor that pops up and eventually it will not retract. But they can still last years if they are installed that low. Usually they are installed in a trench and the crew does not compact the soil beneath the head and they sink over time.

Could be a valve seeping to the lowest/nearest head and causes those wet spots, but then again it could be a break, or a valve box might be near and it is leaking out of a valve, or they could be watering too much, or they could have a drainage problem etc.
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Old 10-05-2012, 09:46 PM
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Mike Leary Mike Leary is online now
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The least you should be doing is trimming around the heads and making sure there is no thatch down there, holding the heads from sealing. Yes, they should be raised, especially if they are 4 inchers, one reason I use 6" in turf. That being said, one of my sites that is going on 9 years is going to get some serious raising next year! Swing joints rule.
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Old 10-05-2012, 10:40 PM
MEXANDME MEXANDME is offline
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Mike,

When raising sprays (or even rotors for that matter), do you use male-to-female cutoff extensions, or Marlex connectors, or just dig back and expose enough funny pipe to raise them?

Thanks,

Mex
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Old 10-05-2012, 11:01 PM
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Wet_Boots Wet_Boots is online now
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It depends on the soil conditions. Sometimes a few marlex ells can work wonders.
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Old 10-06-2012, 08:36 AM
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greenmonster304 greenmonster304 is online now
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I use these http://flexpvc.com/cart/agora.cgi?pr...ser-Extensions no digging just unscrew the head and thread these on.
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Old 10-06-2012, 12:27 PM
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Mike Leary Mike Leary is online now
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Quote:
Originally Posted by MEXANDME View Post
Mike,

When raising sprays (or even rotors for that matter), do you use male-to-female cutoff extensions, or Marlex connectors, or just dig back and expose enough funny pipe to raise them?
Every head I install is on swing joints with a Marlex at the head. Boots is correct, an extra Marlex sometimes does the trick. I used cut-offs years ago, but found swing joints to be much more efficient.
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Old 10-06-2012, 01:35 PM
muddywater muddywater is offline
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We had to raise 600 heads on swing joints last year at one job. We just dug them up and pulled them up
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Old 10-06-2012, 01:49 PM
muddywater muddywater is offline
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Quote:
Originally Posted by Mike Leary View Post
. That being said, one of my sites that is going on 9 years is going to get some serious raising next year! Swing joints rule.
You still involved with your business?
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Old 10-06-2012, 01:58 PM
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Sprinkler Buddy Sprinkler Buddy is offline
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It is common for home owners to ignore the warning signs that there's a problem. They will often wait until they have no choice but to make a repair, often this occurs after an area of the lawn looks horrible or they have a geyser in the lawn when the sprinklers come on.

I know your only the lawn man as you stated but when it happens, most often you will get the call to remedy the problem. Irrigation pros are rare in my area and what they charge for out of town calls, the homeowners will often calls us when it happens.

Be Prepared
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