Posted 3/31/2012 08:14 (#2314270 - in reply to #2314228) Subject: Re: Raven 450 ??
SW Illinois
The most accurate way is to weigh the sprayer with a full load of water, spray it out, reweigh it, and use the weight to find the gallons used. Sight guages are a ballpark idea, but we don't even consider them for calibration.