Gravity Fed Pond Filtration System

From oase this filter is a fantastic product that offers both mechanical and biological filtration through the gravity fed single chamber process.

Gravity fed pond filtration system.

Non pressured filters have a non airtight lid allowing atmospheric pressure to enter the top area of the filter. Non pressurized filter pressurized filter. These filters sit above the water. Some can be gravity fed most are pump fed.

The water exits these filters and returns to the pond by gravity flow. Gravity then forces the water back into the pond either directly or through a waterfalls. The high surface area foam media works to remove debris effectively and the biological screens work to balance out bacteria and promote good bacteria growth decreasing waste and harmful chemicals within the pond. Constructing a gravity fed bottom drain pond filtration system the theory is fairly simple really you basically have two areas of water the pond and the filter whose water levels need be parallel.

The pump which can be in or out of the water forces water into the top of the gravity filter and the water is filtered through lava rocks or bio balls and then through a filter mat. All nexus filtration systems can be installed on pump fed or gravity fed setups depending on your pond configuration.