Aeration
Fountains vs. Diffused Aeration - Which is Better?
Fountains are a popular choice when decorative aerator is desired. Fountains splash the surface of the pond and help control surface algae and duckweed, but do not aerate down to the bottom of deep ponds.
Diffused aeration is the best way to aerate deep ponds. Because the air diffuser lays on the bottom you achieve total pond aeration from top to bottom regardless of depth.
 |
 |
 |
Long, narrow ponds may require multiple diffusers to properly aeratethe entire pond. Square, circular and oval ponds can usually be aerated from central diffuser if one acre or less in size.
One acre is 43,560 square feet; approximately 208 ft x 208 ft
|
Pond Aeration Systems
 Diffused aerationsystems are the best way to aerate, destratify and create
circulation on ponds over 6' deep. Each system has three basic parts.
-
an air compressor
-
an air hose
-
an air diffuser
The air compressor sits on shore and pumps air out through the hose to the air diffuser located on the bottom of the pond. The result is thousands of tiny bubbles rushing out of the diffuser to the pond surface, creating circulation and providing aeration. There are several advantages to using diffused aeration kits instead of surface aerator:
-
Electric motor is on shore, not in the water
-
Air diffusers lay on the bottom, ensuring aeration of entire pond from bottom to top, regardless of depth size
-
With proper sizing, tubing lengths up to 2000' can be achieved for ponds without electricity nearby
All motors are designed for continuous duty operation and are oil-less for low maintenance. Periodic cleaning of air filter and replacement of diaphragm and gasket every few years is all that will be necessary. We can build much larger systems or alter these kits to fit you specific needs. Robust-Air diffusors Get up to 50 % more oxygen in the water with is break through design. Please call for assistance. Kits include everything needed for installation and operation. Tubing is self-weighted for convienent and secure installation.
RA-1

1/4 HP ROCKING PISTON AIR COMPRESSOR KIT
For ponds up to 1 acre. Will operate up to 35' deep.
Motor draws 1.9 amps and pumps 1.5 CFM of air.
PA-33 aerates up to:
1/4 acre 5'-8' deep, 1/2 acre 8-12' deep, 1 acre 12'18' deep
Kit Includes:
-
Air compressor
-
100' weighted air tubing
-
Robust-Aire diffuser
-
Fittings and clamps
RA-2
1/4 HP ROCKING PISTON AIR COMPRESSOR KIT
This rocking piston compressor kit is capable of operating in a much greater operating depth; over 40' deep! Ideal for deep water aeration. Motors are 115v, draws approximately 5 amps and have 6' power cords.
1/2 acre 5'-8' deep, 1 acre 8-12' deep, 2 acre 12'18' deep
Kit Includes:
-
Compressor
-
Valved outlets (to control air flow between diffusers)
-
200' weighted air tubing
-
Two Robust-Aire diffusers with check valves
-
Underlays
-
Fittings and clamps

|