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.
Small 460x320x330mm HiBlow, to 150lpm, Charles Austen to 150lpm, Medo to 80lpm
Large 610x410x385mm HiBlow 200lpm, Charles Austen 200lpm, Medo to 100+lpm
Protects air pumps electrics and circuits from driving rain
To suit air pumps 40 litre to 200 litre per minute
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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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