After much discussion (and begging) I convinced my husband to install our new dishwasher in our kitchen. It’s been sitting in the middle of our kitchen for a week and a half, proving to us both that there’s no room for an island in our tiny kitchen.
Proof is in the pudding, folks – here’s our makeshift dishwasher island:

Glamourous, isn’t it? You can also see first hand evidence of the awful fluorescent lighting we have – lovely, yes?
On to the dishwasher…
First step was removing our old dishwasher. We followed these directions here and here for uninstalling our old dishwasher. The process was relatively straightforward – turn off the electrical for the DW, shut off the water right under the sink, and then remove all electrical and water connections and unscrew the dishwasher from the counter, then shorten the legs and wiggle the old guy out of the cabinet housing. It took a little while to remove the old dishwasher – probably about 1 1/2 hours – but that’s because I have a very thorough, patient, and perfectionist husband
The only tools we used were a screw driver, pliers, and a small pan to catch the water coming out of the water inlet line.
Once we had the old guy removed, we realized we were going to have to do some creative problem solving in order to install our new dishwasher. The electrical and plumbing for our old dishwasher were both in inconvenient places for our new one.

(Hello ugly pealing latex paint!)
The copper tubing came to the front of the cabinet for our old DW, whereas our new DW has an included hose at the back that needs to be threaded into the neighboring cabinet under the sink. And the electrical needed to be moved as well. I think at this point, we were oth convinced we’d have to call a plumber.
But we persisted. We managed to cut a hole in the subfloor and the cabinet base with a reciprocating saw to reroute the electrical – thank God for the drop ceiling in the basement, or this would have been impossible. You can see the new electrical line running in through the cabinet base.

Then we had to solve the water inlet problem, which was really stumping both of us. We had to get this hose…

to go through this hole…

and attach that large plastic bit at the end of the hose to this copper tubing or pipe, which happened to also be the wrong size.

Fun times, right? 
Basically, we had three options.
1. Shorten the copper tubing and make the connection to the dishwasher hose BEHIND the dishwasher in the same cabinet. We wanted to avoid this so we have access to the connection for the inlet in case of leeks.
2. Loop the copper tubing back around into the sink cabinet (basically doubling back due to space) and put the provided hose through a new hole in the cabinet and have the connection under or on the floor of the sink cabinet. For this option, we were worried we’d kink the tubing if we weren’t super careful.
3. Run the provided hose into the sink cabinet, cut the copper tubing, and make for a very tight squeeze (if it’s even possible) in the sink cabinet. For this one, we thought we’d need to call a plumber, which we were hoping to avoid.
After much discussion, and pleading for help on gardenweb.com in the plumbing section of their forums, we found a solution that would give us the best of all solutions: completely DIY, inexpensive, and would result in our preferred configuration of hoses, pipes, and tubes. (Did you know there’s a difference? Yeah, I didn’t…)
Here’s a little diagram to explain the plumbing below our sink:

On the left, you’ve got the 1/2″ copper tubing that goes into the cabinet housing the dishwasher, which is to the left of our sink. Apparently most copper tubing is 3/8″ inch, but we discovered ours was conveniently an abnormal size.
Next, you have a 5/8″-3/8″ reducer. The 5/8″ refers to the outside diameter (OD) of the 1/2″ copper pipe, which is to the right. Furthest right is the ball valve, which is used to shut off the water supply to the dishwasher.
In order to fit the hose connection into this area, we decided to cut the copper pipe…

and use a union reducer to fit the 1″ hose to the 1/2″ copper pipe. We cut the copper pipe using a $10 pipe cutter that we found at our local hardware store. We also bought a new brass union reducer since the one included with the dishwasher would not fit our copper pipes.
Here’s a view of our new shortened copper pipe fitted with union reducer and the freshly cut hole in the cabinet base for the hose.

Now that we’ve got our plumbing set correctly, and our electrical rewired (we even installed a junction box!) I think we’re finally ready to install the dishwasher. Seriously, the detour to fix all of this took about 2 1/2 hours! It was exhausting. Stay tuned for part two, in which we ACTUALLY install the dishwasher. It’s edge-of-your-seat action here, folks!
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