Exigo™IV Hydro-Action® Sewage Treatment Units
Hydro-Action Industries Aerobic Onsite Wastewater Treatment. Tested and Standard (Class I) Certified 40 by ANSI/NSF.
Meet the AP-500 Aerobic Treatment Unit (ATU), the heart of our wastewater management system.
It learned to clean wastewater from the best teacher around: Mother Nature herself.
Just as waste breaks down organically from air, the aerobic bacterial action in our ATU uses oxygen to treat
wastewater.
The Break Down—Naturally
The Hydro-Action system outperforms traditional septic tanks in prolonging drain field life, meeting environmental
requirements, and handling issues like poor soil or high groundwater.
How it works:
The Hydro-Action ATU Prepares Wastewater.
Before wastewater enters the ATU, it runs through the pretreatment or septic tank. Pretreating reduces the amount
of solids and other materials that can get into the system. The system’s flexibility allows the ATU to be added to
an existing septic tank or used with the Hydro-Action system alone.
Processes Effluent
When effluent arrives from the pretreatment/septic tank, the ATU gets to work. The Aeration Compartment is why
the ATU blows traditional septic tank technology right out of the water. A pump injects air into the system,
pushing it down Flexible Air Lines and through the Anchored Diffuser Assemblies (patent pending) to the
compartment, where oxygenation begins. There, aerobic bacteria are force fed oxygen and multiply, cleaning the
wastewater without chemicals and filters.
Creates Clear, Odorless Effluent
Oxygenated effluent then enters ATU’s Clarification Compartment, a conically- shaped area that separates clarified
water from any remaining solids, which settle and return for further aeration. Effluent arrives and leaves the
Clarification Compartment by hydraulic action, and from there it enters the dosing tank, field or mound disposal
system without any worries about bio-matting. With wastewater management, prevention counts. Our OPS®, or
Operations control center, alerts the user through visual and audio signals if the system becomes too full or air
pressure drops to unacceptable levels, so a certified installer can be contacted for maintenance.