ᐅ Pressure washer—but which one?

Yeast? I’m not familiar with that yet.
Fresh or dry?

I know baking soda or soft soap.

Benutzer200 schrieb:

Works great!
Otherwise, a cheap device from Lidl & Co. is usually sufficient.

Yes, that's the trick: if they run cooler, even budget devices last longer ;-)

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Our pavers strongly advised against using a high-pressure cleaner. They said it damages the surface of the concrete pavers, causing them to get dirty even faster.

But apart from baking soda/soap/yeast and scrubbing manually with a brush, are there any other options? Probably not?
Is the mechanical stress from scrubbing really gentler on the stones than a pressure washer? I can't quite imagine that.

If it’s only about green algae, Mellerud applied with a pressure sprayer helps.

With a motorized brush, it also works for larger surfaces or dry ice blasting…

Scrubbing is good for muscles and metabolism, and when done quickly, it can replace cardiovascular exercise.