thanks for the info on t-belt Pete, I guess I am a ways off (800 hours to go) so wont worry about it for now. I tried changing one in a car before. I guess I am not gifted with mechanical logic, so I won't be doing my own. How often is it recommended to change the oil? Every 100 hrs? I have been doing it annually, as I put about 100 per year on her. I had to replace the impeller last year, easy part to get. Again, I didn't do it, I'm dangerous with my hands.