I used to use Zep.
Switched to OneRestore and works differently than Zep and alot better in alot of respects.
- Wet window with water only (Not soap).
- Spray window with OneRestore.
- lightly agatate (bronze or white pad) if need be.
- Rinse with water only, and done.
It’s important not to mix the window cleaning mop/dishsoap with the OneRestore or it is a mess on the rest of the windows. It’s almost like OneRestore is made for pure water window cleaning.