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The last 10 posts

Sunday, July 15th 2018, 2:17pm

by Vato damage

Is it the diaphragm in your valve? I had a similar problem looked lije low pressure heads would barely pop up if any. Next station everything great. Replaced the top of the inline valve with a new diaphragm. Bingo every thing works fine now. Except one of my other stations atarted to do the same thing within a week. So I am going tobreplace the other 2 as a precaution. I already have them dug up no sense in waiting for thw last one to spit the bit out.

Saturday, March 10th 2018, 11:31pm

by Gunther

Wet Boots for the win. Thanks to everyone who helped me troubleshoot this. I should have tried to replace or look at the house pressure regulator earlier. It would give a consistant pressure across when activating zones, but when I would test other days then it would be a different pressure without me adjusting the pressure regulator. $85 for a new regulator, some elbow grease, and a few minutes and everything works great. I had heard my neighborhood has bad/fluctuating water pressure and believed that instead of checking on the regulator. My fault for not verifying it worked properly.

Friday, March 2nd 2018, 9:02am

by Wet_Boots

There may be a pressure regulating valve in the pathway of the water leading to the system, and that will give readings that differ from those systems with unregulated supplies.

Besides a pressure gauge, there is the water meter itself as a measuring device. Many of them today have digital readouts that will show you the precise flow in a zone. Should there be a blockage between the zone valve and the heads, the flow will be less than for the same heads on a working zone.

Friday, March 2nd 2018, 12:09am

by mrfixit

Are the sprinklers attached to ells? like marlex ells or street ells?
Maybe there's debris in the line or ells.
Maybe the springs in those sprinklers are too strong. Try some PGJ's or sprinklers without checks.

Thursday, March 1st 2018, 10:00pm

by Gunther

Lars, that is actually what I going to investigate now. I am waiting on the city to come out and check the check valve on the system. I have asked around, and apparently they are going bad around town at a more than normal rate.

Mrfixit, they are 3 rainbird model 3500 sprinklers in the zone. I have 3 of those same sprinklers on 2 other zones on my system that work flawlessly. I have changed the type and number of sprinklers in the zone with the same results and the same "fix".

Wet Boots, I have been switching and temporary plugging the sprinklers with the same results. I used my pressure gauge and the pressure is consistent regardless of zone used.

Thanks everyone for giving me suggestions and helping me out with this. I am waiting for the city to show up and see about the check valve...I really hope they show up soon and that is the fix.

Thursday, March 1st 2018, 8:57am

by Wet_Boots

If the zone is only three heads, it wouldn't cost a fortune just to replace them, assuming you haven't yet done that. And do get the pressure gauge and take some readings. The too-high/too-low pressure readings on the upstream side of the zone valves will help narrow down zone problems for anyone without professional repair experience.

Thursday, March 1st 2018, 4:45am

by mrfixit

When you have low pressure can you go out to the heads and pull them up to seal the heads giving them full pressure?
Also, "RainBird" is a brand, not a type of sprinkler head.
I still think the heads might be the problem. They aren't sealing so they can't pop up, then when the second zone shuts off it sends a little water hammer down the line popping them up the rest of the way and they seal.
You have a brand new valve, the problem must be down the line somewhere.

Wednesday, February 28th 2018, 9:38pm

by Lars

I'm going to throw this out there,,, is it possible the problem is between your water supply, and your zone valve?

Sunday, February 25th 2018, 4:03pm

by Gunther

Well, I replaced the valve. Same result. I have to pop a valve or bleed valve on another zone for a second and close it while the low pressure zone is on. This is the only thing that makes the low pressure zone have full pressure.

In my mind, I have no other options. I re-plumbed the entire zone and have tried 3 different valves. This is just crazy to me.

I guess I will just go insane and the grass will not get watered unless I do the workaround whenever I want to water. X(

Sunday, February 25th 2018, 1:52pm

by Wet_Boots

the Irritrol valve is descended from a company named Richdel that was a pioneer in plastic valves, that was an acquisition of a company later bougt by Toro - Richdel valves rarely if ever gave trouble right out of the box, which is a track record other leading brands do not enjoy - if you don't have the gauge for testing the system, your money might as well go to the Irritrol valve