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Discussion in 'Irrigation' started by Wet_Boots, Oct 24, 2010.
just thought these were cool
Interesting stuff, there. I wonder what difference is seen in poly pipe versus PVC pipe in the zone plumbing, when it comes to that startup banging.
Very interesting stuff Jim. where did you find all that?
If it's from surge into empty pipes in the laterals I can't see that poly would make that much difference on the banging. Never used or studied poly so just a guess.
I have seen this site before, but you really should link the source if you are going to attach the images instead of linking to them directly.
Does the rumbling happen all the time the zone(s) is/are open? Or just when it opens? I've heard this rumbling with high water pressure when the valve first opens. Kinda like the valve diaphragm is farting (bouncing open/shut) .... bbrrraappp bbrrappp brrap! I am thinking that the high water pressure is "fighting" the solenoid. Shakes the copper lines that are not secured. Would a very large expansion tank help in this situation?
Throttle down the zone valves for a start
I don't think this is due to high water pressure as I have seen this occur (diaphragm slapping) with low water pressure (~ 50 PSI) as well.
poly, poly, poly, badgerbadgerbadgerbadger
middle of the night search pete, i don't sleep more than a few hours straight.
doggone man, just last year i could barely type and mitchell was going to stomp a mudhole in the middle of me for my lack of sentence structure. i'll try harder, structure is still lacking too.
no one noticed the clown...............................
No worries here .... just trying to keep you from getting slammed by someone for jacking their content without proper referencing. Actually, it is better to do what you did than link the pic directly (which I do and shouldn't) because that amounts to stealing bandwidth.
I did not know that, thanks Sonny.