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  #11  
Old 06-10-2011, 10:39 AM
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FIMCO-MEISTER FIMCO-MEISTER is offline
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Should have used 6inch-valve-box
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  #12  
Old 06-10-2011, 10:59 AM
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Wet_Boots Wet_Boots is online now
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I think anyone in Florida would want to have repair capability for indexing valves - elsewhere, meh.
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  #13  
Old 06-12-2011, 06:02 PM
anotherbrian anotherbrian is offline
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Quote:
Originally Posted by FIMCO-MEISTER View Post
Get rid of the hydro indexing valve whether its the problem or not.
Meister - Are you suggesting re-plumbing the zone direct into the point of connection thereby bypassing the hydro?

I tied off the heads to see if I measured a flow of 0 gpm. Instead I measured 1/2 gpm with a visible leak through a crack on the side of the hydro. To bad they stopped making metal ones. That makes me think the lion's share of the lost is occurring through the seals of the popup spray heads or possibly at the riser/spray head connection.

Are there any rules of thumb on expected leakage amounts for spray head seals?
I can see that would be distinguishing quality characteristic between product lines. The irrigation engineering manuals don't seem to mention the subject. In practice I replace the seals when they obviously leak.
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  #14  
Old 06-12-2011, 07:04 PM
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Mike Leary Mike Leary is offline
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There should be NO leakage from a wiper seal. They should "lock and load". RB 1800 series have that reputation.
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  #15  
Old 06-12-2011, 07:50 PM
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FIMCO-MEISTER FIMCO-MEISTER is offline
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Quote:
Originally Posted by anotherbrian View Post
Meister - Are you suggesting re-plumbing the zone direct into the point of connection thereby bypassing the hydro?
I have no clue what this means therefore I will attempt tp flowchart.

water tower, pump, meter, tap, eliminate hydro indexing valve, pipe in valves for each zone, run wire, install new controller. LIFE IS GOOD
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  #16  
Old 06-21-2011, 10:27 PM
GothamGnome GothamGnome is offline
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sorry, but how did you come to that flow rate assumption of 22gpm...bucket test or mathmatics?
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  #17  
Old 06-22-2011, 12:47 AM
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Inspired Inspired is offline
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Quote:
Originally Posted by GothamGnome View Post
sorry, but how did you come to that flow rate assumption of 22gpm...bucket test or mathmatics?
I think he said he measured the flow at the meter.
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"Meeser Beell, The sprinkles not zackly, zackly, zackly." - Javier Larios
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  #18  
Old 06-22-2011, 12:51 PM
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Buck_wheat Buck_wheat is offline
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"I measure 22 gpm going into a zone which has 6 half sprayers (number 12H) and 5 full sprayers (number 12H). Assuming all that water makes it to those sprayers, that works out, on average, to be 2.8 gpm for the fulls and 1.4 gpm for the halves. "

Uh... I dunno, maybe I'm stupid . If he has 22gpm, do the math on his set up, I think he's got a water deficit .4 glns per minute, assuming I'm reading his post correctly and that's one zone.

I'm not sure if that's enough to lift the heads and produce the rated radius of throw, let alone produce sufficient pressure to rotate the disk in the valve properly; he may need some more water & pressure to achieve his goal.

He should call an irrigation designer.

I love Hydro Indexing valves, everybody here got at least one
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  #19  
Old 06-22-2011, 02:04 PM
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Wet_Boots Wet_Boots is online now
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22 gpm is a bit too much to expect from a small residential water meter
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  #20  
Old 06-22-2011, 03:02 PM
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Buck_wheat Buck_wheat is offline
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I dunno... different communities, different systems; different pressures but 6x1.4= 8.4 & 5x2.8=14 add them up & you come to 22.4 which is .4 more than he says he has. Unless he is using 1.4 GPM per minute for all the 180's combined in which case I want to know what he's using for mist heads and how long the system has to run before he gets .5" precipitation.

FYI. Metro NYC? I'm from Jamaica Queens in a past life... that be South Jamaica... 103rd precinct BOO!
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