We have used a British Berkefeld (also known as “Berkey”) filter for many years. These use four ceramic filter elements which last a long time and work very well. Our unit has a 2-gallon capacity. What sold us on the Berkey is the fact that these filters have been used by many years by aid organizations for water filtering in third-world countries—a proven design that is effective, practical and reliable.
“We have used a British Berkefeld (also known as “Berkey”) filter for many years. These use four ceramic filter elements which last a long time and work very well.”
If you ran it full out 8 hours a day producing clean water, what is a “long time?”