I just got back from my empty.
Was in a bedroom looking at a window and lamenting over the seal being bad. I looked a little closer, grabbed a wet rag and made a little circle.
Unbelievable that I could then see thru the window as if it wasn't bad.
Tenants left this place cleaned and rent ready until I talked to them about it voice. Then he just said it was his first rental and he learned a lot.
--107.147.xx.xxx