I just have a courtesy hose I use. It dumps a lot of really hot water, also helping to cool down the machine so I don't have the throw a bunch of water in the waste tank with the bypass valve.
Same here..I have a short (4-5feet) piece of hose on my tm to run out all the hot water after the job is done..Cools down the inside of the unit nice.. and helps filling up jugs, sprayers, clean off inline filters, wands etc...
I looked at a carpet cleaner's wand not too long ago and pointed it out to him, that I had a hard time locating his 4 jets on the wand....that is how much LINT HAIR AND DIRT build up was there!!! Unreal!
The guy was just looking, without saying much...he didn't care about taking tools like that into a customer's home...
I try to keep my Greenhorn shiny clean all the times..little acid (viper restore) wipe down on the head and around the jets keep it shiny! Just rinse it off with some alkaline and fresh water and it looks like new..