Your going to need water pressure and filter, i have inline filter on my ice machine, i have one that will make 50lbs in a day, 12lbs is not much. if only want 12lbs they make countertop ice machines that are in the 200 range i think will suit you for what you need.
like this, Frigidaire 26 lb. Countertop Ice Maker EFIC117-SS, Red Stainless Steel - Walmart.com - Walmart.com
i would use filtered or bottle water in ice maker.
This is really important and something EVERYONE here needs to do NOW!!! If you don't want an illegal shitshow when you die, any firearm you own has to be exactly specified where you want it to go.
In my case, since wifey isn't really fond of my hobby, I added specific instructions in my will where each firearm goes (to my boys). This way, wifey doesn't even have to deal with it (since everything else transfers to her), my sons know exactly what needs to be legally done.