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Old 08-03-2011, 04:28 PM
Mike Leary's Avatar
Mike Leary Mike Leary is offline
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Join Date: Mar 2007
Location: Alpine, Arizona
Posts: 20,496
Reverse flow valves seem to pass crap better, but the previous post is right; one good reason to have the lawn guys guys keeping a eye out and you servicing the system regularly. With our RM clocks, we've taught everyone to check for faults which would indicate a "under run time", in which case the clock will bypass the zone. I'd rather have some stress than a catastrophic flood.
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