[watsonofearnock]

Only the one washer bottle Zorro - takes around a gallon as I have filled mine up with a gallon container of pre-prepared screen wash from the supermarket. Your misting is a cause of complaint but generally if they switch on and leave the lights on for a period of time and the misting clears they won't replace - but if it doesn't then they will.
No such thing as a daft question here - we all had to start somewhere. Keep enjoying it.
Cheers John