is it true that i need to buy a sanatizing pump when i can just put sanitizing solution (one step) into the keg and pressurize it and then open the faucet?
yep, I leave 1 gallon of star san in an empty keg until I use it, which is when I'll re-stanize the dip tube/tap line one last time by making sure the keg has pressure and dispensing a little star san.