Air Pumps & Accessories

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Charles Austen Linear Air Pump

Charles Austen Linear Air PumpFrom:  £95.95

  • 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 PumpFrom:  £216.00

  • 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
Medo Piston Pump Service Kit

Medo Piston Pump Service KitFrom:  £57.95

  • LA80B - Maintenance Service Kit includes all parts to carry out a service
  • Service Kit: 2 x Piston Assemblies, 4 x End Cover Seals, 1 x Air filter
  • Service is easy to do and takes approximately 20 minutes start to finish
  • Yearly change air filter
Service/Repair Kit for Charles Austen Diaphragm Pump for 60 - 200 LPM

Service/Repair Kit for Charles Austen Diaphragm Pump for 60 - 200 LPMFrom:  £36.00

  • Maintenance service Kit with all parts to carry out service on each model
  • Kit includes diaphragms, magnets and air filter as appropriate
  • Service is easy to do and takes approximately 20 minutes start to finish
  • Warranty 12 months
Vented Waterproof Enclosure for Air Pump

Vented Waterproof Enclosure for Air PumpFrom:  £25.96

  • 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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