The tubes and hose do suffer with the sticky gloop in the gutters. You know by the sudden weight of the pole that it's being lined in crud. I get a bucket of water and suck it up when things get boggy.
Used mine yesterday but still had to get the ladders out to unblock an s bend - totally chogged with plant roots, it was so bad i had to lever them out with a spike held in my hand. Vac or pressure washer wouldn't have had a chance of shifting them.