Hi all
I am on the third clean of some houses on my round. The majority of my cleans come up great and have no problems. However, some are still spotting after the 3rd clean. For example a house today, front only. Cleaned the first time two months ago, finish was visibly bad, did just glass again to bring it up to standard. Second clean a month ago, was much better than 1st clean but still not perfect. Today, it looked fine in normal light but with a low setting sun, it looked bad. Again, it had to be done again.
In most of these where I am having this problem, it looks like the spots are coming from the seals, not from a lack of rinsing the frame. When, if ever, is this problem likely to subside. I am not getting complaints but I wonder how much of that is down to people leaving in the dark and getting home in the dark or simply not wanting to complain. It is knocking my confidence and I find myself asking if they will ever come good. It is also slowing me up as I don't have the confidence to go quickly.
Any advise appreciated.