hi all anyone do this? im certainly going to but when searching around gets confusing about best option. ie petrol/diesel or electric?whirlaway is the surest clean tho im guessing involves a lot of sweeping waste water away. can this run off a 600quid pressure washer petrol/diesel?also if electric with heater with a telescopic lance could this be ideal for commercial facade cleaning? if so can an electric one generate enough psi for a whirlaway?any help be helpful as most suppliers keen to point out benefits of thiers but not necessarily best option for me.