A facebook posting last week
The decks and roof have filth from mud ground into the rough, non-slip paint.
I can scrub with a brush on a drill, but climbing up and down to fill a watering can in the cut to rinse off is a killer, and it's a very big roof.
I managed to find a cordless pressure washer on Amazon with a hose that I can dangle in the cut. Difficult delivery as too big for their lockers, so had to wait til I could moor near a road for the driver to find the boat. That was one job to be done today - except the washer won't suck water, so now I have the task of an awkward return for refund.