IDK I watched with the sound off, but what I may say is using any chemicals over an open water source even SH would be highly ill advised without causing a seroius environmental impact.
I agree, I am new to learning pressure washing before I take the plunge, but it should be clear that will be water pressure only (no chemicals at all).
But water only isn’t gonna remove in grained mould from timber.
What can you do directly above a water source? Environmental folks will probably come down hard I would guess.
Edit: Hot water?
Yeah I guess
Found this…interesting…
This is one of “Those Jobs”. I don’t wanna be “that guy”.
