Been out early this morning to clean an old cotton mill which has been converted into apartments.
While we were doing it a chap came and enquired whether we cleaned solar panels. He said he owned an MOT garage about a mile away and could I have a look after we had finished.
Went round and he has 75 panels covering his garage roof, I have some white cotton sheets in my van which I use to clean upvc with, I tied one onto my brush and gave one of the panels a once over, the cloth was filthy and when I showed him he was gobsmacked.
Needless to say we cleaned them there and then and he has booked us to do them again middle of July.