DIY carbon water filter

cults3d

Why buy expensive filter replacements and add to landfill when all you need is the activated carbon that is available at a local aquarium store. You will also need a piece of coffee filter placed in the bottom to slow down the drip. Has months marked to gauge time. Funnel tabs will require some sanding to achieve a snug fit, use a knife and caution when removing so tabs don't break Place filter paper in bottom of base pour in activated carbon align funnel with appropriate month, or move ahead 1 to 3 months to replacement date.