Hello all, Well I have got two customers booked to do shortly and yes the First clean and first customer. I notice on the windows they had water marks dried in and some were ok but little dirty. Could I please delve into the mass of knowledge on here and ask whats your procedure on a first clean, getting the drie din marks etc. I tried at a family house and the water marks did not go aftr i saped it up with applicator and squeegee it, was dissapointed. I buffed it out with damp cloth first the cleaned again and worked better, but wondered if there is a plan here of attack? Thanks guys.