I have a very fussy customer who goes round and inspects every window after i have cleaned it, (all eighteen of them) . The whole house is stained glass. The first time I cleaned the house i used an applicator and plenty of soapy water and cleaned off with a scrim. She said the windows were streaky. The second time I used a damp cloth and scrim, this time she said there were smear marks, (which had come from the lead). Ive now found the answer for this customer. For the last four visits I havnt used any water at all, just wipe the dust off, and give it a quick polish. The job now takes a fraction of the time and she seems very happy with the end result.
Tony