easy to make

Howdy y'all, Sadly not all of us live in areas that are marijuana friendly so I wanted to show an effective way to build an incredibly simple carbon filter. I know there are probably other carbon filter designs similar to this one, but I just wanted to show my take on it. This design is...

A real cheap and easy way to cool your DWC water temp and keep it constant. A water pump pumps warm water from your bucket into the fridge. In the freezer is a spiral tube to get as much surface area possible for good heat exchange. The cooler water then gets pumped it back into your bucket...