huskyvacs
Yeah as I said before earlier, Simple Green isn't the stuff that I prefer using to soak and/or to scrub parts with. But even with my best stuff, they can't always get rid of everything on some parts which is why I would put them in my dishwasher. Unfortunately my house doesn't have any space to hook up another dishwasher unless if the entire basement got renovated. Otherwise I would've wanted to use that instead of the kitchen one. I don't use it on all of the vacuums that I would service, just on the ones like the Sebo where they are the most filthy which is not very often. However not to worry because I always self clean the dishwasher every time that I would use it to wash the parts afterwards, and of course I would always wash the parts by hand before putting them in the dishwasher like how you would do the dishes so I wouldn't clog it up. Never had any problems.
I've been pressure washing some parts for years now and I also never had any problems. Like the dishwasher, I don't use it a whole lot but just whenever stuff would be really hard to come off and the pressure washer mostly does the job. For the brushroll, I did removed some hair and strings off with a knife. However, I would NEVER soak the brushroll to remove everything else off. That will rust the metal shaft which is a mistake I'll never do again because I did it once before with another Sebo. Spraying off the bristles with the pressure washer is what's guaranteed to have it cleaned completely. I did wanted to keep the original brushroll but it didn't stick that far into my carpet after the refurbishment so I had no choice but to order a new brushroll for it.