Linear Air Pumps Useful Information

Air pumps (“blowers”) generally use a lower amount of power, however do so almost continuously through the year – and the cost can add up.
Make sure yours is properly rated with our checklist:
  •  Calculate / estimate back-pressure.
  •  Back-pressure within ideal range for the pump.
  •  Correct air-flow for your system.
  •  Assess noise, size, and electric connection.
MPC Services prides itself on its brand-independent perspective. The strongest compressor brands have earned it through quality product supply and reliability; however that does not always mean it is the best option for your site.

What is back-pressure?

Air pumps blow air along the air-hose, the end of which is usually submerged in water. Back-pressure on an air blower measures how hard the pump is having to work to blow air, and can be expressed in metres of water”. It is typically the sum of friction between air and the pipe, and the effort required to push air down into the water.
Higher compressor back-pressures usually lead to lower air-flow. Excessive back-pressure can accelerate wear / failure.

Air-flow curves

The following curves have been selected based on a target air-flow of 50-70 Lpm (litres per minute) at a back-pressure of 2.0m. For a version of this chart customised for your site, contact the team at

Payback estimates on an upgraded air blower

While air pumps generally use little power, because most systems are designed to run continuously, the costs can add up faster than you might guess. The following table estimates cost based on 17p/kWh and 100% on-time.
Compressor Model Power kWh/yr 5 yr elec
Charles Austen ET60 0.11kW 700 £650
Secoh JDK-S-60 0.08kW 450 £408
FujiMac 60 0.06kW 400 £382

Pump return service

Wanting to change your air pump? Alongside our range of air pumps for sale, MPC Services offers a return service for functional, unwanted air pumps. You pay postage (unless we collect as part of a service visit), and we offer a buy-back of 20% of the equivalent pump price, less any costs of repair.