Tell us about yourself!
After the 1/2 NPT elbow, you should add a close nipple and another 1/2 NPT elbow, then a reducer and a longer 1/4" NPT niple so you have another column of liquid and air pointing up. Attach the hose to the top of that column. If the 1/4 NPT nipple reaches higher than the current outlet of the parrot, liquid will never reach the tube. You won't need the air injection, pump, or valve if you do this.
The yeast converts the sugars to alcohol and is a different process than the freeze distillation. You can get a lot more alcohol with the freeze distillation than the yeast.
You are right, as long as you raise the temp to at least 160, you kill anything (salmonella being the most common) that wants to harm you, so you don't have to use the pasteurized.
but nearly boiling the batch will kill most yeasts. Also, most yeasts won't be active in low temperatures (refrigerated or below), but can come back to life around room temp.
$2 Arduino. The ATMEGA328 as a stand-alone. Easy, cheap and very small. A complete guide.
3d scan anything using just a camera
Design your own reference bookshelf speakers