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CHARLES AUSTEN ET AIR PUMP KITS
PUMP AND ACCESSORIES
Charles Austen ET Air Pump and Accessory Kits
These multi-airstone kits are ideal for aerating several individual tanks e.g. for hydroponics, or for large areas such as ponds.
Pump, brass nozzle, connecting elbow
Metal valved manifold
Powerful weatherproof pumps with an efficient drive and excellent performance characteristics. Designed for continuous or intermittent operation they are ideally suited for large ponds, hydroponics, waste water treatment, spas etc.
ET-Series Kits specification table:
Pump technical specification table: (performance is dependent on individual setup)
Voltage: 220-240V, UK plug
Cable 1.4m approx.
How noisy / quiet is it?
Quiet for such a powerful pump but a significant hum – please consider this if noise is an issue. Note that the noise is reduced under load so please test under operating conditions.
How long can it be run for / duty cycle?
These pumps are designed for continuous use under normal conditions. As with any air pump you can prolong its life by balancing the output with a valve to release any excess pressure. Avoid running pumps with no load.
Can I use it outside?
They are weatherproof for use outside. Site in a secure sheltered location. Please ensure any outdoor electrical appliance has adequate protection, check with an electrician if unsure.
Is it serviceable?
This range does have diaphragm service kits available.
Always use one-way valves if the pump will ever be lower than the water level (on dry land) to prevent the water siphoning back to the pump. Use inline-valves to balance flow between multiple air stones and to relieve excess back-pressure on the pump. Avoid running the pump with no load or with all outputs closed. Length of pipe and depth of the airstones will affect performance.
1 Year against manufacturing defect
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