This year I'm going to have some jobs where there is no water available and I'm going to use a tank. Last year when I tried a tank it seemed as though the water wasn't leaving the tank fast enough to feed the pressure washer. Should I be running a 12v waterpump off the tank to get water there fast enough? Also I'm charging $50 an hour when I'm running of the customers water. I was thinking of charging about $75 an hour this year and another $25 if I have to use my water tank. Does this sound good? I don't really want to charge alot right now because my machine is only 3000 PSI Landa with a 13 H.P Honda and I'm trying to attain a customer base.