John, have you run your fingers and fingernails over the dirty area? Does it feel different than the cleaner parts of the glass? If both sides feel smooth all around, I would guess it could be on sides 2 or 3. I half wondered it is was a Pella window with a clip-in panel but it doesn’t appear to be so.
I had a really difficult time cleaning just about all the windows, except the garage windows and a couple side of the house windows. Most of them proved to be very difficult. It also took me FOREVER to do 1/8th of the job! man it took me so stinkin long… I had two jobs scheduled that day (just average sized homes). I had to call the 2nd job and re-schedule… then by the end of the day I didn’t even get half-way finished with the first house.
I’ll post another thread about my lessons learned from day one. lol
No, I noticed there was window tinting on the inside upper windows (not visible in picture). I did NOT mess with those. lol.
JohnsCurry,
PM me when you get a chance.
