when i was still in school i worked with a window cleaner, helping and doing.. im pretty sure this was when the first pure feed systems came into play.. the boss had the hi ace fitted out with a massive tank, all the floor was covered in resin or something, all the tanks, filters etc were all around the sides of the van.. it was unreal..
i went to the place building it all and they got the gear out to test for impurities in water.. there garden tap had 500 or so, out the pure feed system 8
and that was most likely from the outlet pipe..
cleaning you car with its a win, streak free everytime, no drying