If the leak occurred in either of the two connections (smaller = dishwasher, larger = sewer) exiting the side of your disposal unit, it’s a pretty straightforward fix. Loosen the metal clamps on these hoses and make sure the rubber gaskets inside are not falling apart. If needed, replace these gaskets. Reattach the hoses and re-clamp the connections with new metal clamps.
Energy usage is not high; typically 500–1,500 W of power is used, comparable to an electric iron, but only for a very short time, totaling approximately 3–4 kWh of electricity per household per year.[34] Daily water usage varies, but is typically 1 US gallon (3.8 l) of water per person per day,[35] comparable to an additional toilet flush.[36] One survey of these food processing units found a slight increase in household water use.[37]
Has this ever happened to you? It’s the end of the day and you are dutifully washing your evening dishes.  Your sink isn’t draining quickly, so you flip on the switch of your waste disposer expecting to hear the satisfying sound of your meal remnants being ground into a pulp.  Instead – to your shock and dismay – the disposal only hums, or even worse, does nothing at all. Frustrating, right?
Locate the leak. Wipe off the disposal unit with a dry rag. Run water into the unit and turn it on. There are four places where the disposal unit may leak. At the top main seal, at the drain pipe, at the optional dishwasher inlet or along the garbage disposal body. Notice where the water is coming from. If the unit is wet at the very top, the main seal is leaking. If the area beneath the drain pipe is wet, the gasket is leaking. If the hose from the dishwasher feed drips, the hose or clamp may be faulty. If water is running out the bottom of the unit but the inlets and outlet are dry, the unit itself has developed a leak and must be replaced.
As it's a direct replacement, I didn't even bother to go through the hassle or removing the old sink flange and having to putty in a new one as the existing one was just fine. It took me about 5 minutes to replace old with new - that's why I didn't bother with a different make. I'm an average Joe who does a few things around the house - mostly accompanied by a lot of cussing - so anything that makes such work quick and simple results in less swearing - which is a good thing right?!
Even though a leaking garbage disposal is a fairly simple fix, there can be a few factors that can complicate the process somewhat. For example, there are a few different places within the connection system that may spring a leak, so often the hardest part of fixing a leaking garbage disposal is trying to determine where the leak is coming from.Aside from the obvious connections, possible areas for leaks include water inlets and outlets as well as rings and seals.
You can buy a 1/3-hp disposal for $80 or less, but our experts suggest that a more expensive unit with at least 3/4 hp would be a better choice. The more powerful the motor, the less chance it will jam. In addition, higher-priced disposals are generally quieter and have longer warranties. If you need to replace the splash guard guard as part of your garbage disposal installation, take a look at this guide.
I am a researcher. I read every review - the good and the bad. I've read the Consumer Reports reviews, read the Amazon reviews, read the other, sketchier review websites like GreatGarbageDisposals.com (I made that one up but if you've done any research on the internet you get my point). I am writing this review to share what I learned about the product and about the many reviews I've read. My situation was that our 6 year old Badger froze up and simply quit on me, so a new one was in order.
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.

Garbage Disposal Repair