Air Pumps & Accessories

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110 mm (4 inch) Push on straight connector~~£6.00~~ £8.34 Push fit connector 110 mm (4 inch) Push fit coupling joins 110mm (4" underground pipework	Additional braided air hose for air diffuser (price per metre)From: £1.38 Additional braided air hose for air diffuser (price per metre)	Broken Outlet Pipes Straight Connector 100mm (4 Inch)~~£16.60~~ £17.34 Straight connector 110mm (4inch), joins all broken outlet pipes Multi functional specially designed to fit all plastic, clay and metal pipes	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.
Filter - Outlet Pipe Extension 500 x 110mm (4 inch)~~£8.50~~ £7.14 Extends the "T" Housing so it is under the septic tank manhole cover Makes it easy to remove and clean septic tank filter	Low Pressure Air Supply Alarm~~£84.44~~ £76.00 Envirosure Alarm Low Pressure alerts when air pump has stopped Alerts with sonorous buzzer / strobe light if the pressure drops in the system Has battery back-up in case of power failure Warranty 12 months, yearly renew batteries	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 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
Push on T-Connector Housing for Filter£19.14 "T" Housing for filters if you septic tank does not already have one Simply push fit for ease of installation	Replacement Battery Pack£19.14 (1) Replacement battery pack for Hydra timer pumps Easy to replace, simple unplug, takes seconds to replace	Replacement Tube Set~~£9.00~~ £10.50 (1) Replacement peristaltic tube set for timer pumps Easy to replace, tube includes end connectors, takes seconds to replace	Septic Tank Filter£30.00 This helps to protect the soakaway from blockages and clogging. Simply push into the vertical part of the 'T' piece on the septic tank outlet pipe
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 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