The garbage disposal quit and the prognosis for the water heater isn't good. Watteryagunnado? The disposal is easy and the water heater doesn't have to be hard. Now is a good time to point out that it is NOT a hot water heater it is a cold water heater. Think about it. If the disposal calls it quits then it is a glass half full situation. Yes you need to fix it but half the job is done by virtue of already having one in the first place. Just go to your local plumbing supply store (until I get advertising dollars I'm not going to recommend one mega-box over another) and purchase a unit compatible with the one already there and follow the instructions for installation using the parts already in place. While you are down there make note of any other minor tweaks you can do to be more productive. See? That was easy.