Why not buy a pressure washer with a 27ft lance, spray on the TFR then blast with normal water or for the more stubban stains use a detergent in the washer.
Why use a pressure washer when a regular hose pipe will do?
I have a converted harris pole with a sprayer on for TFR or similar.
I could change the brush head on it and add a clip for a hose pipe. Then i could spray on the TFR, give it a rub over with the brush, then turn on the hose.
Nice idea Wally
might save me some time and give a better result
I'd toyed with the idea of doing something similar.
My idea was to run a hose pipe up the middle of the Harris pole and put a soap dispenser in the line. Then I could:
1 - spray with soap solution
2 - Scrub with the lobby brush
3 - rinse off with the hose.
When I tried rigging one up, it was too heavy and cumbersome.
The Harris pole brush just gets dipped into the TFR. There's no hose trailing behind to fall over or get covered in dog poo etc.
KISS - keep it sweet and simple