Bog gravel filtration: Water cleaned by Mother Nature (2015)

Bog gravel filtration is a natural way to clean water by utilizing a filter that turns fish and plant waste into fertilizer for plants growing in the filter. This process results in clear water and low maintenance, reducing the chances of equipment breakdown and the need for frequent callbacks from clients. The filtration system works by pumping water through a gravel bed where nitrifying bacteria break down waste into plant food, which is then absorbed by bog plants, leaving the water nutrient-free and inhibiting algae growth. Despite being a technique used by Mother Nature for centuries, bog gravel filtration has gained popularity in various industries, including pond maintenance and even space station waste treatment experiments. Constructing a bog gravel filter involves avoiding common mistakes like using the wrong size gravel, insufficient plant coverage, or deep gravel beds. Different configurations like partition, raised, border, island, or pottery bog filters can be used based on the pond's design and size. Proper piping and planting techniques are crucial for the efficient operation of a bog gravel filter, ensuring clear and healthy pond water.