Performance under Pressure

Aeration Education Air Diffusers

Air Diffusers

Rubber membrane type air diffusers are increasing in popularity. The rubber membrane has small air holes. The membrane expands as air is pumped through it and air is released. Rubber membrane diffusers put very little back pressure on the air pump and can handle very large volumes of air through a single diffuser. They can be rendered self cleaning if extra air is available to blast open the air holes periodically. They may need cleaning once or twice a year. Rubber membrane diffusers are available as a disc or a tube. The discs are available 12 inches in diameter. Tubes are available in a 24 inch length. The discs have a ¾ inch male threaded connection and can be installed to your air plumbing through concrete. The air tubes can be installed in the pond or lake at any time. The 24 inch air tube diffusers can be weighted with gravel on the inside and then capped off to sink to the bottom.

Some manufacturers will use the air discs mounted to a bottom drain. The bottom drain is suitable for liner ponds or concrete. This is a convenient way to incorporate an air diffuser to your pond during time of construction.

Koi & Pond Tip of the Day
January 21st, 2018
Ponds with vinyl liners or of fiber glass construction tend to show a decrease in alkalinity over time and may need supplements to maintain an acceptable level. Raise alkalinity by adding Calcium Carbonate, concrete blocks, oyster shells, limestone, or even egg shells.
Tips by » Koi Clubs USA

Hakko HK25L Vacuum A...
Hakko HK25L Vacuum Air Pump

The Hakko HK-25L Linear air pump represents a top of the line Liner Air Compressor with 3 year warr...

Read more
Hakko HK40L Linear A...
Hakko HK40L Linear Air Pump

The Hakko HK-40L Linear air pump represents a top of the line Linear Air Compressor with 3 year war...

Read more
Aquarium Air Manifol...
Aquarium Air Manifolds

We recommend that you use these small manifolds for aquariums. These small air manifolds c...

Read more