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Old 10-06-2013, 01:34 PM
LawnsharkMB LawnsharkMB is offline
LawnSite Senior Member
Join Date: Sep 2011
Location: Myrtle Beach, SC
Posts: 503
Originally Posted by RigglePLC View Post
Mysterious. If the new pressure switch still fails to cut out at 60 pounds...either it is a bad switch, or the switch is not the problem.
Are you spraying a wettable or flowable formulation? Potentially something with could plug small openings. Do you have dirt or residue in the tank? Do you have a screen or intake filter?
Why not get a bypass valve and let the excess flow back into the tank?

Or get a new pump--and be done with it.
I've been spraying a water dispersible granular. Never had a problem until after I sprayed a couple tanks of it.

It does have a bypass valve.

I'm gonna upgrade to a 3.8 gpm pump over the winter anyway so I can spray higher volume.
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