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Air Pumps & Accessories

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Charles Austen Linear Air Pump
Charles Austen Linear Air Pump
From:  £273.16
  • 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.
Medo Piston Pump
Medo Piston Pump
From:  £145.00
  • Medo Piston Air Pump with unique floating piston technology
  • Models: 60 / 80 / 100 / 120 / 200 - litres per minute
  • Medo floating piston pumps will run for 4-5 years before a major service
  • Yearly change air filter

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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