The Enviro Series Charles Austen Air Pump is a linear diaphragm pump that provides a clean, oil free air source. It is notably quiet and exceptionally efficient.
Straight connector 110mm (4inch), joins all broken outlet pipes
Multi functional specially designed to fit all plastic, clay and metal pipes
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Caution!!!
Many pump manufactures under estimate the size of pump required, so that it appears a cheaper, smaller air pump of theirs will do the job of a larger competitors air pump.
The tables below have been obtained after more than 40 years experience of how much oxygen is required by bacteria and aquatic life under all conditions. Remember the higher the water temperature the less dissolved oxygen (DO) the water can hold.
Pond Air Pump Sizing
Volume in gallons
1,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
9,000
10,000
Volume in litres
4,500
9,000
13,500
18,000
22,500
27,000
31,500
36,000
40,500
45,000
Litres air / min to maintain DO Safe Levels
40
80
120
160
200
240
280
320
360
400
Lake Air Pump Sizing Use 1 hp motor per acre
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