View Full Version : Lesco tank??????????

07-30-2009, 12:05 PM
Just bought a used lesco tank sprayer 100gal 5.5Hp and I need to how many P.S.I to put in the diaphram pump?

07-30-2009, 07:06 PM
are you talking about the air valve on the top diaphram damper (red and black round)
like on a d-30 hypro.... if so i THINK is 20% of op. pressure so 200 psi of spray = 40 psi in damper