I Finally Decided It Was Time To Build A New Washer. Since we clean roofs and homes efficiently with my "softwash" system, My Main Concern With Our Productivity Is cleaning Concrete. With Some Advice From Everybody Here, I Am Going After More Gpm's. I Purchased A 24 Honda & General Tsf2021. I Am Going to Combine These With A Heavy Duty Gear Box. I Have 2 Main Washers Now, Cat 51g (4.8 @ 3000) & Cat 45g (4.5 @ 3500). These Are Great Washers And Do A Good Job on concrete With Our 20" Classic And 36" Maxima. I Feel With 8+gpm And 3600 Psi I Can Reduce Our Time On Concrete Even More. I Should Have It Built And Running In A Week Or Two. I Will Supply It With A 100 Gallon Tank And Float System. Does Anybody Run A Tsf2021 On A 24hp?????