Resun ACO-018 Electromagnetic Air Pump 195L/min, Septic, Pond & Aquarium, 1Yr Wty

RESUN - Well respected brand of pond equipment from China.

Authorised Australian dealer - Trading for 35 years.

This Air pump can be used both in residential and commercial applications such as pond aeration, fishing farms, aquaculture, restaurants, aquariums and other commercial application like septic tank which requires constant and high volume of air supply.

Ideal for adding oxygen into aerobic wastewater systems in non-sewered areas. Also used for pond aeration into a fishpond which is very important for fish health, particularly in densely stocked Koi fish ponds and in the summer months when oxygen levels decline. Fish will become visibly more active in an oxygen-rich pond.

The perfect choice for natural swimming pond wetland aeration and for airlift pumping of the water.

FEATURES

• Electromagnetic Linear Piston technology
• Cast aluminium body.
• Voltage/Wattage: 240V / 420W
• Automatic thermal cut-out overload protection
• Cable length: 1.5m
• Max pressure: 38kPa / 0.42 bar / 380 mbar / 5.5 psi
• Max air output: 11,700L/hr (195 Litres/minute)
• Air pump outlet diameter: 16mm
• Must be set-up 30cm above the water level.
• Important: Rated IPX4 (meaning - Should be placed in a low dust environment but will tolerate rain and light sprinkling)
• Cylinders and pistons are made of heavy duty material for longer service life.
• Maximum water depth for placed air stones or air diffuser: 4.0m
• Supplied with a plastic 16 outlet barbed manifold.
• Air Pump dimensions: 330mm(L) x 180mm(W) x 205mm(H)
• Weight: 9kg

WARRANTY: 1 year warranty (Motor only) - excludes any other parts

Operating principle of Linear Piston Air Pumps –

Linear pumps use electromagnetic force to move the piston or diaphragm up and down, thus pumping the air or liquid. Linear Piston Air Pumps have high volume outputs than Diaphragm pumps.

The activated electromagnet attracts the piston against the return spring which causes the air to be taken into the cylinder through the opened one way inlet valve. When the electromagnet is deactivated, the return spring pull the piston back forcing the compressed air out of the cylinder through the now opened outlet valve.

Maintenance tips:

• The unit must be placed on a stable and stationary platform during operation to ensure that the water does not flow backwards.
• The outlet tube must not have any sharp corner edges and should be set up on smooth curved angles.
• The unit should be placed in a well-ventilated location. Poor air circulation around the unit will lead to increase in air temperature around the pump, reducing the pump’s efficiency.

What is Aeration and Importance of aeration in Aquatic Ecosystems – Hydroponics, Aquariums, Aquaculture, Garden Pond or Fish Farming?

Just like us, all living organisms such as plants and aquatic life require oxygen for growth and for survival. Dissolved Oxygen is the lifeblood of any Aquatic Ecosystems and is the most crucial element of water quality. Aeration is the process of circulation of oxygen rich air within the water body.

The largest source of dissolved oxygen to a water body is from the atmosphere. Atmospheric oxygen enters water either by diffusion or by turbulence due to movement of surface water. Direct diffusion is a very slow process, as oxygen is only slightly soluble in water. Thus, surface agitation by wind or other means that mixes air and water is the most effective way to add atmospheric oxygen into the water. This process of mixing air with water to increase dissolve oxygen is known as aeration.

One of the most important needs of Aeration is to prevent Stratification. Stratification is formation of ‘layers’ of water with different temperature within a water body. As the sun warms the surface of the water, it causes the temperature difference between the surface and deeper waters. While

wind influences the surface water, its ability to mix the entire water volume is limited. This is due to the high value of “Specific heat” of water. As we can recall from our science lessons, Specific heat is the amount of energy needed to change the temperature of 1 gram of water by 1 degree Celsius. This lack of movement or mixing of water cuts off the oxygen exchange between atmosphere and bottom parts of the water body.

This lack of oxygen caused by stratification is further aggravated by the continual bacterial decomposition of organic matter on the bottom of the pond or water body. In cases when this decomposition consumes more oxygen than what photosynthesis can replace then it causes a further decline in dissolved oxygen levels. This makes a non-natural means that forces mixing of oxygen in water, such as aeration provided by an Air Pump, to be essential for the health of the aquatic ecosystem. It creates an upward water movement to distribute oxygen rich water from the surface to the deeper parts of the pond, promoting health of aquatic life and inhibiting Algae bloom.

With the underlying requirement to prevent stratification and to facilitate circulation of cool & oxygen-rich water to the more stagnant parts of the pond, the functions of an aerating system will vary based on the application. For instance, in the case of Hydroponics where the plants are grown in a nutrient rich water without soil, aeration is crucial to ensure efficient nutrient circulation. While in the case of a sewage water treatment, aeration is done to provide growth of aerobic bacteria as they consume waste materials like human waste, food waste etc. The capacity of the Air Pump that defines the mount of air expelled by the unit will depend upon the amount of water that needs to be circulated.

At Rock Around The Block, we have Air Pumps, Submersible & Inline water pumps, Fountains and Filtration systems of varying capacity suiting smaller pond to larger systems.