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When the total back pressure in the system is considered, a pump should be circulating the total volume of water at least once per hour for proper water quality. An air pump can be used to increase dissolved oxygen. In a heavily stocked koi pond, an air pump is a necessity. Along with the water pumps, there must be jets placed in areas where ...
Water garden or aquatic garden, is a term sometimes used for gardens, or parts of gardens, where any type of water feature (particularly garden ponds) is a principal or dominant element. The primary focus is on plants, but they will sometimes also house waterfowl , or ornamental fish , in which case it may be called a fish pond .
Naturally, ponds vary more in their physical and chemical conditions from day to day than other freshwater, like rivers. People often install pumps in garden ponds to counter these natural tendencies, particularly to maintain higher levels of dissolved oxygen. Although this is generally unnecessary for wildlife, it may be essential to keep fish ...
Modern water features are typically self-contained, meaning that they do not require water to be plumbed in; rather water is recycled from either a pond or a hidden reservoir, also known as a sump. The sump can either be contained within the water feature, or buried underground (in the case of an outdoor water feature).
A well-designed outdoor pond has areas too deep for herons to stand, overhangs high enough above the water that mammals cannot reach in, and shade trees overhead to block the view of aerial passers-by. It may prove necessary to string nets or wires above the surface. A pond usually includes a pump and a filtration system to keep the water clear.
Solids may be entrained in the flow and if small enough to fit through the pipe, will be discharged with the rest of the flow at a shallower depth or above the surface. Airlift pumps are widely used in aquaculture to pump, circulate and aerate water in closed, recirculating systems and ponds.
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