Hi all I've just bought a reach and wash business and I've been doing it for around 2 months now. I'm 21 and just starting out so I'm apreciative of all advice. Basically I have had no problems with my existing customers as they have been cleaned by reach and wash for 6 years. I've picked up some new work and every new clean I do I get complaints regarding spotting on the windows. I'm running out of ideas as I scrub well and rinse thoroughly. I have a vikan pole and fat boy backpack my water is at 0.01 ppm.