In most cases if your garbage disposal is humming it is because a foreign object is stuck in the disposal. If an item has been jammed in the blades of the disposal they will be unable to rotate. This can result in a humming noise. If this is the case simply unplug the disposal under the sink then survey the drain hole. If you discover that an object is stuck in the blades remove it. Once you have done this you can plug the disposal back in and flip the switch. This should clear up the problem.
An affordable option that offers outstanding value, the Waste King Legend Series comes backed by a solid five-year warranty. The stainless steel disposal is compact enough to install under most sinks. The continuous feed design means this disposal requires just a flip of a switch. It runs very quietly, but it is still powerful enough to grind food waste efficiently.
Turn off the garbage disposal at the breaker box. Remove the drain pipe if it is leaking there. Most attachment clamps are wire clamps with two protruding wires that are pushed together to release the drain pipe. Push the wires together and remove the clamp. Pull the pipe off and inspect the seal for any debris that may have lodged between the seal and the pipe. Wipe the seal with a damp rag to remove any dirt, debris or food particles. Sometimes the wire clamp loses tension. In that case, tighten the hose clamp down in its place, which may secure the pipe leak-free.
Some folks knocked the instructions. Take heart. It appears that the Waste King guys have heard the criticisms from the negative reviewers. I am guessing that they have been re-written to better explain the installation because they are really easy to follow. My best advice is this: don't be afraid of a difficult or confounding set of installation instructions. It is really easy. Here's what you do. Go to youtube.com and search for a video on How To Remove Your Existing Garbage Disposal because this is the hardest part. You will find one that matches yours. Watch it. I started removing the Badger incorrectly, stopped, watched a video, and then it was a piece of cake. In my case, I shouldn't have removed the three long screws before removing the body of the old one. You do it after it is disconnected. READ the instruction manual carefully. Then go ahead and youtube the Waste King installation video. It is very easy once you see it done. No filing or grinding gaskets, and Good Lord, no car jacks under your sink please. If it is hard then you are doing something wrong. STOP!!! Review the procedure. Start again. The directions are actually very explicit. The parts are well labeled. The diagrams show you what to do. The videos show you what to do. If you prepare yourself (15 minutes of reading and watching videos, tops) you will fly though the installation and be a happy person.