I also use the 25 gallon sprayer to spray webworms in the pecan trees. The 60psi pump allows the spray to reach a vertical height of around thirteen feet, which won't reach the little buggers next year.
If anyone has a suggestion that would address that problem, please post it.
Hi Dudley. It's been awhile!
The 60psi pressure is less critical for distance than the pump's flow-volume rating. If 60psi is your pump's "max pressure", it can't actually achieve or sustain that pressure while delivering more than 30% of its max-rated gpm. Between these variables, and the gun's spray-tip, the system's range is probably limited.
You'd be better off with a 12v pump that's rated at only 45psi max, yet produces at least 3 gpm (3.6-5 gpm even better). With the proper spray-tip, such a pump should provide a 20-25+' vertical range.