hey guys, just wanted to run some of my fuzzy math past you and see if you catch any errors here... Calibrating my sprayer, I built a "walking boom" dual nozzle contraption in hopes to reduce my gallons of liquid per 1,000. The two nozzles combined are putting out 1.5 GPM. I found that I can cover 1,000 sq. ft. in roughly 35 seconds. I converted the 1.5 GPM to 192 OZ.PM 192 divided by 60 seconds I get 3.2 OZ per second. take the 3.2 OZ.PS and multiply by 35 (the number of seconds to cover 1,000 sq. ft.) I get 112 oz per 1,000 sq. ft. or .875 gallons That's 114,000 sq. ft. coverage with my 100 gallon tank I would need 171 ounces of 3 way (lesco) for a 1.5 oz. per 1,000 rate. If i'm waaaaaaaaaaaaay off here someone hit me in the head and let me know! Thanks! I know I souuld probably use smaller nozzles and maybe less pressure still and cut back to 1/2 a gallon per 1,000... BUt I hate to mix my tank too hot, I still will have places I need the chemlawn gun to get inbetween stuff, and unless I hit it at a dead run there's no way to run that low of rate with it!