"What is the difference between the Bone Crusher line and the Waste King Gourmet line of disposers?"
Sinkmaster has discontinued manufacturing the Bone Crusher line of disposers and replaced this line with the Waste King Gourmet line.

"My garbage disposer smells! Is there anything that I can do besides buying a new one?"
Generally the simple solution to this is to clean the disposer by having it grind up a few cups of ice and some table salt. This helps to cut the grease and slime off the sides of the disposer. Then flush it out with cold water followed by half of a lemon or lime to deodorize.

"Should I be adding enzymes/bacteria to my disposer or septic tank whenever I use my disposer?"
Not in our opinion. There are even disposers that add enzymes every time that you use that disposer. From what we have read, bacteria grow naturally after initially being introduced (mostly by nature) into septic tanks, and no additional enzymes/bacteria need to be introduced. From our perspective, adding additional enzymes/bacteria each time seems like a waste of money and resources. One additional note, our Founder wishes to encourage you to use composting and not throwing all wastes down your food disposers. Save the Planet and recycle as much as possible.

"I've heard that garbage disposers waste harms septic tanks. Any truth to that?"
We have yet to read any study that reflects that. Some cities have banned disposers and then, later changed their minds and allowed them, such as New York. From what we know, food disposer waste gets consumed by bacteria in sewage treatment plants and septic tanks.