How to Construct a Small Septic System. Most private septic systems are made up of two parts: the holding and digesting tanks, and the dispersal field. The system shown here is a small system, designed for limited use of by two people with.
The Joule Thief: A prepper's best friend for dead or homemade batteries. Learn how to take a few cents worth of parts (or scrounge them from dead electronics) and make a circuit that can make dead batteries work again.