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The last 2 posts  Friday, April 22nd 2011, 9:56pm  by Mitchgo
What kind of ground water?  Sounds like a dirty water situation
that's damaging your sprinkler heads quicker.  Whats wrong with
the heads? they stop rotating?  MOST k-rain are absolute crap,
however a couple of the commercial krain's are kick ass.  Invest
in a in-series filter , Install a dedicated flush zone valve to
help keep the system clean.  Over time as you are replacing your
heads , if you really want a durable head. Start replacing them
either with then Rain Bird 5004 Stainless Steel , or the Hunter
I-20 Stainless steel  Depending on your system, you may need to
invest in the next size up such as the Rain bird 5500's or the
hunter i-25's  Friday, April 22nd 2011, 5:45pm  by yubarice   I
replace about 30-45 a year on my system. I now use the K-5
series or model sprinkler and they do fine but it sure seems
like the gear driven fails first. My system has 9 zones and have
around