Remove green moss from WPC fence and terrace slabs (natural stone)

Good evening,

I have quite a lot of green moss on the WPC fence and natural stone terrace slabs. What would you recommend best, if possible not a chemical bomb (if so, the selection is very confusing). Thank you very much!

What do you recommend best, if possible not a chemical bomb (if so, the selection is very confusing).

Baking soda and hot water. Let it work overnight. If that doesn't help, then the chemical bomb. Otherwise, of course, mechanical cleaning with the pressure washer.

I use the back of a garden tool (hand rake) for thick slabs and simply scrape it off. Or do you mean more the [Veralgung]?

I have now cleaned the terrace and path with the pressure washer with surface cleaner in spring. It works great and looks like new. With WPC you just have to check if that also works.

Hello everyone. The problem with the pressure washer is that the panels lie on gravel and I believe they will fly out of the joints if I use the pressure washer here.

Has anyone already cleaned WPC fences with a pressure washer?

PS: I actually also have a surface cleaner attachment for the pressure washer.