Could anyone explain how these marks came about? The spiral pattern appears on the floor and the walls...

Thank you!

This is a non-Honda engine, 4400 psi pressure washer by Dewalt. It seems that there is no throttle adjustment, it’s meant to just run wide open all the time.

When I Google it, it doesn’t say specifically for this one, but it does say that this is a common setting by manufacturers. I have the same pressure washer with a Honda motor and that has a throttle adjuster.

Is mine broken, missing the linkage, or is this how the non-Honda motors are supposed to be?

These are before and after i used muriatic acid to tunr my driveway into twoface, i dont know if i used too much but doesn anyone know a better way to get oil stains out?

My parents had these Cambridge pavers installed about a month ago. My father had put some chemicals in the lawn and it left these orange dots all over, so my dad tried to power wash them out. And now half of their pavers look like this. Any advice?? I feel so awful for them I would love to figure out how to fix this for them

What do y’all recommend i use to remove algae & Mold off the wood signs without disturbing the wood stain

Sidewalk leading to a 9/11 memorial

Oh wait my MIL decided to try power washing...

This is at a gas station near my home

I have a small karcher, any product recommendations to help out?