David, are you serious, you use the customers wheelie bin?
?
Hygenic that, and very professional.
You're kidding, right?
Anyways, aside from your little joke - why new? If you can buy a good set-up, maybe less than half the price for a better machine, why wouldn't you?
Not sure who the other poster was re: sucking from the mains, what's the point of having a 15 or 21lpm pump, sucking it heart out for 8lpm (or often less) from the tap. You need a tank, feed the tank all the time, then when you're not on your trigger, you'll be stockpiling