I am following the directions on the Lesco momentum FX bottle for 1.3 OZ per K at 4 gal. of mix per K. It seems like this is alot of water per K, but maybe not. I am running my Lesco space saver at 380 PSI with the yellow head on the chemlawn gun. The method is effective on the weeds, but I fear that I am consuming way to much product and water. Can someone clue me in on what mix rates and pressures they are using or what is the best way to be using my system. Thank you.