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Old 02-21-2013, 05:48 PM
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mitchgo mitchgo is offline
LawnSite Silver Member
Join Date: Dec 2008
Location: Redmond, WA
Posts: 2,727

That pump can't supply that safely

1 1/4 outlet can only safely handle about 25-30 gpm

Hopefully not every head is at 4gpm and that a proper design is in place.

Why 1x a week for 2.5 hours at one time in sandy soil? How to you come up with that? That's not smart watering for sand
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