Air Diffusers

xDISK7

Our expertise in aeration comes from our many years of experience in the field of air diffusion technologies. We offer a wide range of air diffusers including our Bubble Tubing®, OctoAir-10 or OctoAir-60 in addition to Robust-Aire and EPDM membrane diffuser discs.

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Price
Regular price
$35.30
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Regular price
$35.30
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There has long been discussion as to which is better: bottom aeration or surface aeration? There are some advantages for each depending on the application, but usually bottom aeration is more advantageous. If you go to the surface aeration page you will see more arguments for surface aeration, in the meantime here are some arguments in favor of bottom aeration with diffusers:

  • Circulation of the entire water column in relation to the depth of the diffuser and the volume of air injected;
  • Elimination of thermal stratification (generally prohibited in the case of natural trout lakes);
  • Increase in dissolved oxygen levels, which stimulates the natural aerobic digestion process, thus reducing the thickness of organic silt and the accumulation of sediment;
  • Prevents fish kills during winter by increasing the oxygen available in their habitat;
  • Reduces mosquito populations;
  • Eliminates foul odors from unwanted gases;
  • Reduces organic bottom sediments by avoiding sediment anoxia;
  • Sequestration of phosphorus in sediments;
  • Preservation of a healthy aquatic ecosystem.

Kasco diffusers are designed to produce fine air bubbles with minimal pressure.

The base of the Robust-Aire diffuser is made of stainless steel. Its design keeps the diffuser at an optimal level above the pond bottom. The fittings are durable and bolted to ensure that the weighted hose does not come loose during installation or maintenance of the diffuser. A non-return valve with Viton seals prevents water from entering the pipe when the system is not in operation.

  • Diffuser Type: Ballasted diffuser base using a porous pipe as the diffusion medium.
  • CFM: 1 to 3.5
  • Bubble size: Medium to fine
  • Minimum pressure: No restrictions
  • Price: Buy online or contact us.

Each of these durable EPDM diaphragm discs is composed of over 1,000 small perforations that release microbubbles when the compressor pressure tensions the diaphragm.

The flexible membrane is automatically cleaned by the micro pulses produced by the compressor that feeds it (not included). The disc never clogs, even at the bottom of the muddiest lakes. Salty, hard, or muddy water is not a problem with this high-performance diffusion disc.

Most of the fine bubbles released by this disc are no larger than 0.5 to 1.0 millimeters in diameter. The principle of fine bubbles is of paramount importance for several reasons: they offer a large air/water exchange surface for better oxygen diffusion; they rise very slowly to the surface and stay longer in the water than large bubbles and finally they produce a more intense water movement.

These discs are perfect to be added to existing systems. You will be surprised how your old compressor will run more smoothly while consuming less energy for more air injected into the water. Ideal diffusion system for ponds or lakes that have very steep slopes or very deep-water bodies.

  • Diffuser Type: 7'' or 9'' round disc, depending on the choice, working with a flexible EPDM membrane.
  • CFM: 0.5 - 3 cfm for 7" disks, 0.5 - 6 cfm for 9" disks
  • Bubble size: Fine
  • Minimum pressure: 0.5 to 0.6 psi
  • Price: Buy online or contact us.

This small diffuser is used in our SAS and Mini-Air aeration systems. It is very suitable for ponds that are rather round or tank-shaped.

  • Diffuser Type: Ballasted diffuser base using a porous pipe as the diffusion medium.
  • Optimal CFM:  0.09
  • Bubble size: Fine
  • Minimum pressure: No restrictions
  • Price: Buy online or contact us.

Do you have a question or would like more details?

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