Thank you! I’m glad it looks okay, just messy. What is this loop that should be higher in the cabinet? Is it a type of fastener or an actual loop in the hose? What would I need to secure all this better...or do I need to call the plumber back?

Well, Houzz, thanks for losing my post...

Ok, yes, it's messy but it's not the messiest I've seen.

Your drain hose should loop up, almost or right to, the top underside of your cabinet - like this:

dishwasher drain hose u bracket installed - Google Search · More Info

People often use a U bracket, such as this to hold the hose in place:

GE WH41X10133 Drain Hose Guide U-Shape · More Info

Also, did you intend for the dishwasher to be fed by a cold water line, rather than the hot water line? That's acceptable if so, and I could be just seeing it wrong also.

The white hose

You need a high loop in the drain hose--higher than the sink drain--to keep the dirty water from the DW from flowing backwards. I used a zip-tie, as high as I could attach it inside the sink cabinet. (Attached with a drywall screw.)

Wow! Thanks for the incredible information, 2ManyDiversions. To get the looping in the graphic, I will need to feed much of the drain hose out of the cabinet, toward the dishwasher. Is that right?

Also my angle will not be the same since I have an apron farm sink. Does this matter?

I didn’t specify any particular type of water feed. I didn’t know to ask. I just wanted the dishwasher hooked up and installed. Following the tangle, I think I’m getting hot water only to the dishwasher.

And not the messiest you’ve seen?? I guess that’s comforting to know ;)

"Also my angle will not be the same since I have an apron farm sink. Does this matter?"

No.

Hi Albie - "Wow! Thanks for the incredible information, 2ManyDiversions. To get the looping in the graphic, I will need to feed much of the drain hose out of the cabinet, toward the dishwasher. Is that right?"

Nope, leave your drain hose inside the sink base cabinet, which I assume is located next to your dishwasher.

I tried to get a photo of ours, which is also an apron front sink, but we installed ours prior to the countertops being placed, so the photo I took is seen from above - and I can't find it. Also, our sink base cabinet is deeper than most so we had extra room to maneuver behind the sink.

I found some more images online which might help - and as others have mentioned, this is instead of or in place of an air gap (which would have been installed on top of your countertop.

So... Below Top Left you see the High Loop - it's inside the sink base, beside the sink. Next to that on the Top Right is an Air Gap, installed in a countertop - you don't need that if you've got the high loop. I'm assuming you've not got one as they are not commonly installed now.

Below those, you see the drain hose tied into a disposal - I don't a disposal see in your photos.

dishwasher drain loop in cabinet - Google Search · More Info

Here's a high loop beside a sink bowl that is similar to an apron front as the space is limited. Ideally, the loop needs to be 32" up from the floor to work properly...

dishwasher drain loop in cabinet - Google Search · More Info

Here's another example, and here you can see they used twist ties I think. Not sure this one is high enough, but I can't measure it : ) You'll note they used a braided hose there, not the plastic type. We did as well, but your white plastic one is fine - just check it every few years for degradation, holes, or leaks. You do need to affix it to the cabinet, somewhere, though.

dishwasher drain loop in cabinet - Google Search · More Info

And one more. Again, it's in the sink base cabinet. The loop is installed high enough here, in the red circle, hard to see, but it's there.

dishwasher drain loop in cabinet - Google Search · More Info

There are several ways to attach these onto your base cabinet - on the side wall or the back wall. Some use twist ties, others use the device I show in my first comment which are plastic, and some use metal clamps/brackets. These hoses tend to move a bit with drainage, so I wouldn't use metal, unless you have a braided hose, which you don't. Use the plastic U bracket or heavy duty twist ties. Either way, you need to affix it to the side or back wall, 32" above the floor. I can't help you with how to affix it - you'll have difficulty getting a screw driver behind your apron front, but if there is room on the side wall, you can accomplish the task.

Good luck!