How a water filter works

In case you’ve ever wondered, this what it looks like inside an inline water filter – I cut my old one in half with a hacksaw. It is full of carbon granules which do the filtering… maybe not the best idea to do this on board, mind, the particles can go everywhere! The irregular surfaces and pore structure of the carbon granules work by capturing water-borne contaminants as the water flows through them. Eventually, however, the carbon can’t ‘soak up’ any more impurities at which point the filter will need to be replaced.