I have not long ago started wfp. When I wash windows water runs like it would be oily it's most of the windows like that and different customers. I was worried that I put my brush soemwhere where I have picked up some oil, I washed it with some fairy. good for few windows, then back to oily runs. it makes it more difficult to rinse as water would run in channels and difficult to create a water curtain.
Now where I had not oily windows, water would run down and it's dried in minutes.
Oily windows water would gather in drops and stay until they dry out.
Once dry - no marks of oil or anything - they perfect.
Any suggestions ?
Thanks