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Old 10-15-2013, 12:04 AM
socalkol socalkol is offline
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High PSI

Bought a house lastyear (brand new) and two weeks ago I had a blowout/explosion right before one of the zone valves for my sprinkler system.

I patched this up and fixed it, but then tested the pressure afterwards to see the original designer sent 200+ psi to my irrigation system which i imagined caused that issue as well as others.

What is the safe/ideal PSI should i have going to the irrigation system for individual zones of 4 RAINBIRD 5000 rotors shooting 25 ft radius each
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Old 10-15-2013, 12:23 AM
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RhettMan RhettMan is offline
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thats really high PSI I think
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Old 10-15-2013, 12:27 AM
socalkol socalkol is offline
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Quote:
Originally Posted by RhettMan View Post
thats really high PSI I think
Right, i gathered that also and imagine thats what caused my problem originally... Now I am just looking to findout what PSI I should have, so i know what to set the PRV to when i install it this week.
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Old 10-15-2013, 12:49 AM
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RhettMan RhettMan is offline
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i am also interested in learning the answer to this....

do you have the system design on hand ?
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  #5  
Old 10-15-2013, 05:54 AM
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CAPT Stream Rotar CAPT Stream Rotar is offline
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Around here we notice pgp's start to have a short life span after 40-50 psi.


Thats at the head pressure... put in a PSI regulator try to keep it under 50 hopefully it doesn't take away from head performance.

My suggestion would be to keep it under 50...

good luck.
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Old 10-15-2013, 07:46 AM
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DanaMac DanaMac is online now
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I prefer to see 60 psi static, but I don't get nervous until it gets over 75 psi. I think the highest we have seen on a residential is 175.
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Old 10-15-2013, 09:34 AM
Kiril Kiril is offline
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Depends on what your potential pressure losses are downstream of the valves, but for your typical residential lot 50-60 PSI coming into the valves should be more than sufficient.
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Old 10-15-2013, 11:11 AM
socalkol socalkol is offline
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Thanks everyone for your help!
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Old 10-15-2013, 07:02 PM
stebs stebs is offline
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wheres the 200+ psi coming from? Hard to imagine a city would be running that high of pressure in their mains... In my city we see about 70, if the city tries to go over that, they start blowing mains out of the ground...
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Old 10-15-2013, 07:15 PM
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1idejim 1idejim is online now
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I would guess that 50-100 psi would be average across the country, I'm with stebbs and wonder if the op's psi is correct
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