Air diffuser examples

Air diffusers are pieces that go down below the water surface in the aerobic treatment unit (ATU) and diffuse the air that the air compressor pumps in.  The purpose of the diffuser is to break the air down into smaller bubbles so that there is more surface area for the oxygen that is in the air to absorb or diffuse into the water and become dissolved oxygen (DO).  This DO is what the aerobic bacteria need to survive in order to consume the waste.  Here are a couple of examples but there are many other shapes and sizes.

ProFlo air diffuser for 500GPD ATU.
Air diffuser


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