Installing them is pretty darn easy; especially if you've got the the power and switches already wired. Even though I didn't have an existing switch installed at my house, I still opted for a switch activated disposal, over a batch feed, simply for operational ease (don't like the batch feed style, I prefer to just turn it on and shove everything down as it gets ground up.
In my case, when I redid my kitchen, I had neither power or a switch, and had to run a new power line from a new breaker to under the sink and then install a switch; I opted for the air switch (installs in your counter) which saves having to cut into your wall and rough in a dedicated switch at counter height.
As for plumbing it in, my tips would be to test fit the whole run before you start gluing it, and to ensure you knock out the dishwasher plug if you're setting it up that way. Its usually easier to just cut your whole existing plumbing out and then rough in a whole new run, making sure that you've got everything running downhill properly, etc.
|