The distiller is available at www.h2olabs.com and the model number is 35TZ. It’s plenty for a family of 4.
The alkaline drops are available on Amazon. They are called Alkalife pH Booster Drops. I use 20 drop per full brew (1 gallon) Your water may test different so you have play with it. Buy some litmus test strips to test the pH of your brewed distilled water and add drops to try and get the pH to 7. Hit me up if you have any questions. 