Today was maintenance day,my waste tank was really starting to smell all the time no matter how uch i poured germicidal bleach into it.when i got to the bottom i found a grease paddy about 6 inches stuck in front of the drain hole.I believe this nasty smelly grease came from a restaurant that wasnt cleaned in over 5 yrs.this smell has plagued me since june.Any way i cleaned the tank and decided to rinse the blower incase it smelled as well.so i mixed 3 gals of water with some FISSION and poured it down the hatch.what a mess that came pouring out of the other end.so i repeated the process 3 more times followed by a good soakin with WD-40.tomorrow i will be takin a strap wrench to the first job unless i fire it up at home