Custy rings up a few months ago saying there is a sticky residue on his windows.
Prior to cleaning the windows I had cleaned his Fascia etc used TFR and presumed I had contaminated the brush. So I went and hand polished all the windows and removed this sticky residue.
Same custy rings up again yesterday complaining of the same problem. This time only windows have been cleaned. The back was done with Backpack filled with RO water TDS 000 no DI. Fronts done from Van tank RO water tds 000 then through di TDS 000.
The frames are Upvc, it’s on all the windows bar 1, used two different brushes/poles for the clean.
I cleaned my own windows last night and they are fine and no other complaints.
Anyone have any clue what this could be?
Cheers Wayne