For high walls you can attach an extension wand to the pressure hose.

You know how to use the pressure hose?

The words came out of him like water from a pressure hose.

The Bear went down blowing air like a ruptured pressure hose.

High pressure hoses were run over the clay face.

He kicked the pressure hose with a foot and the bag deflated.

Finally, a high pressure hose was used to inject water into the ground from a 600-gallon mobile tank.

The green will eventually go brown or black, after which you can wash it away with a high pressure hose.

The riot trucks had arrived and their pressure hoses were breaking up the crowd.