Three Outlets with Gast Compressor

The Atlantic Water Gardens three-outlet cabinet aeration system uses a commercial-grade Gast compressor housed in a weatherproof outdoor enclosure with three independently controlled diffuser lines. This system provides the oxygen and circulation capacity for larger ponds, irregular shapes, or feature basins with heavy koi loads where two-zone coverage is insufficient.

Three Zones for Complex Ponds

Large or irregularly shaped ponds develop oxygen dead zones in corners and coves that single or dual diffusers cannot reach. Three independent outlets allow strategic placement of diffusers at the deepest point, in high-fish-traffic areas, and in any dead-zone locations. Individual adjustable valves on each outlet let you fine-tune the airflow balance to match the volume and depth of each zone. The result is consistent dissolved oxygen throughout the entire pond during peak summer heat and through Canadian winter.

How to Use

Install the cabinet above the waterline in a shaded, accessible spot. Run three independent lengths of weighted airline tubing to diffuser positions. Adjust each valve to balance flow across zones based on pond depth and fish density in each area. Plug into a GFCI-protected circuit. Replace the compressor intake filter every 6–12 months and inspect the diaphragm at spring startup annually.

Ideal for large Canadian koi ponds and complex water gardens requiring comprehensive three-zone oxygen management.