Brilliant. I was on the verge of doing the same thing today, but it started to rain. This weekend though, definitely. Miraculous!!(D'you think we're a bit sad???)
Almost certainly. Did you see the video on the link?
Ready as I was to Ta Da ! with the best of them , it took a while to work out why .Just one of those terrifying power hose things or were chemicals involved too ?
No chemicals, just water cutting through the algae like a blade.
ooh, I like that, an instant result. I just wish the K. didn't also flush out bits of grouting.