Well that makes me feel better, 3 days is doable even if I decide to keep running after the rain. I have enough to keep the planter busy that long behind me if I want to. 1 week is what I'm being suggested here from my fertilize dealer. This particular field was to get a blend for 60-20-60 but I came up 15 acres short on my dry blend on 55 acres so it was putting it out too heavy, I'll have to go through the calibration process again which is a major pain! I wish all you had to do was put in the blend weight per cubic foot and go but impossible without it having a way to determine flow. Now the anhydrous is doing perfect since it does go through a flow meter.