That's awesome and yes, be sure to get buckets to cut. I did that and also use the tote under them, what a difference my friend.
You're going to see making bubble a whole new way. At least I did and am very happy about that.
When I measured the outlet it was closer to 15/16 than 3/4. I had to go with a thicker hose than I wanted to but went with 1" ID and used a hose clamp.
I went to our local hardware for the hose though, I'm sure HD will have a more flexible hose to use.
Look forward to seeing which you choose first, and how you enjoy the process.
Watch that bag, it doesn't have a stop at the bottom for the zipper.........don't ask how I know lol
And on my 5th wash, the zipper did open. Admittedly I had more ice in there than I should have though.