Adding air to a pond is one of the most important aspects of pond keeping. Injecting air via the Swell Air Pumps causes oxygen to diffuse into the pond water. This oxygen is essential for any pond life including, fish, wildlife and biological filtration.
Pond air pumps are designed to sit externally to the pond and they inject air into the water via a airline hose and airstone. This fizz of bubbles drastically improves oxygen levels and also creates additional water movement.