Dirty panels

Just been asked to clean these panels the picture doesn't really show how bad they are ,they were installed in 2012 and never been cleaned

What size pole are you using for that? Or are you using a lift?

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47 ultimate for the top ones might get away with a 35 for the lower ones

Very dirty panels there, so much for self cleaning /emoticons/biggrin.png

Loads of water and a narrow brush!

So just wondering what is the best sort of brush for cleaning solar panels , I have various Gardiner brushes .

Depends on the kind of dirt and long it's been on. If they're not too bad use a wide brush but if they're filthy you ideally want a rotary brush. Or you will be scrubbing all day to get a good result.

Did some last week similar, can go the long process of wetting down and rubbing lots, it will come off bar some bits that get stuck in the groves, or spray up with a weak ubik soloution let dwell and then start washing them, I did the latter with the added bonus of hot water, came up great, ubik wont hurt them aslong as it dont dry out on them..

Self cleaning ahahahah....