You’ve got to hand it to this guy for such an ingenious, yet simple design. The how-to example in the video below is made from approximately 12 feet of copper tubing plus a few fittings (the stainless steel tube option is shown too).
Follow the instructions in the video below to learn how to build it yourself. If a torch isn’t something you have in your toolkit you can find “push on” fittings from a hardware store that you won’t need to solder.
NOTE: It is absolutely imperative if you do choose to solder your device, that you use lead-free solder. Prior to 1986, solder in the U.S. contained an alarmingly high content of lead. Chances are if you live in a house built before the 1980’s your tap water is contaminated with the neurotoxin lead due to leeching solder on your water pipes. All the more reason to filter your water with a device like this! Lead solder was the industry standard after all. Watch below:
We don’t have a water problem. We have a salt problem! -Joe Rogan