Skip to Nav

Hydra International - Convert Septic Tank to Sewage Treatment Plant

Hydra Septo Air Conversion System sales 01908 265889

Hydra Septo Air Installation

Hydra Septo-Air Basic Conversion Unit <20 People

Comparison Septo-Air Basic and Ultimate

Hydra Septic Tank Conversion System Illustration Diagram

Hydra Septo Air Dimensions1

Hydra Septo Air Dimensions2

Hydra Septo Air Item List

Hydra Septic Tank Conversion Unit Basic Septic Tank Conversion Unit Basic Septic Tank Conversion Unit Basic Septic Tank Conversion Unit Ultimate Septic Tank Conversion Units Commercial Septic Tank Conversion Units

Septic Tank Conversion System

Basic Septic Tank Conversion System

System Component Includes


  • Linear Air Pump
  • Air Tube Diffuser
  • Bacteria Starter Pack
  • Biological media
  • 30 metre Braided Air Hose

How it Works :


Raw sewage enters the septic tank through inlet pipe. The sewage is aerated by a tube diffuser producing air bubbles, which produce oxygen with the help of an air pump. Oxygen allows the growth of aerobic bacteria that break down the sewage and wastewater contaminants. The treated effluent is then filtered(optional) and passed out of the tank to soak away/drain fields through outlet pipe.


Calculate BOD and See Which System you Need

Septic Tank Conversion System for <20 People
  • Features
  • 3600 Litres air per Hour
  • Power 45 Watts
  • Noise Level 40 db.
  • Diffuser Size 500mm
  • Aerobic Bacteria Treatment
  • Easy to Install
Septic Tank Conversion System for <30 People
  • Features
  • 4800 Litres air per Hour
  • Power 60 Watts
  • Noise Level 40 db.
  • Diffuser Size 750mm
  • Solution to Drain Field Renewal
  • Reduces Septic BOD Levels
Septic Tank Conversion System for <40 People
  • Features
  • 6000 Litres air per Hour
  • Power 80 Watts
  • Noise Level 40 db.
  • Diffuser Size 750mm
  • Helps maintain soakaway fields
  • Aerobic System
Septic Tank Conversion System for <45 People
  • Features
  • 7200 Litres air per Hour
  • Power 90 Watts
  • Noise Level 45 db.
  • Diffuser Size 1000mm
  • Domestic/Commercial Use
  • Reduces BOD Levels
Septic Tank Conversion System for <55 People
  • Features
  • 9000 Litres air per Hour
  • Power 170 Watts
  • Noise Level 45 db.
  • Diffuser Size 1000mm
  • Easy to Install
  • Aerobic Bacteria Treatment
Septic Tank Conversion System for <75 People
  • Features
  • 12000 Litres air per Hour
  • Power 230 Watts
  • Noise Level 45 db.
  • Diffuser Size 1000mm
  • Economic Treatment System
  • Removes Septic Odours
Septic Tank Conversion System for BOD<4660gm/hr
  • Features
  • 3600 Litres air per Hour
  • Power 45 Watts
  • Noise Level 40 db.
  • Diffuser Size 500mm
  • For Domestic/Commercial Use
  • Easy Installation Process
Septic Tank Conversion System for BOD<6200gm/hr
  • Features
  • 4800 Litres air per Hour
  • Power 60 Watts
  • Noise Level 40 db.
  • Diffuser Size 750mm
  • Maintains Soakaway Systems
  • Aerobic Treatment System
Septic Tank Conversion System for BOD<7760gm/hr
  • Features
  • 6000 Litres air per Hour
  • Power 80 Watts
  • Noise Level 40 db.
  • Diffuser Size 750mm
  • Helps to maintain drain fields
  • Uses Aerobic Bacteria
Septic Tank Conversion System for BOD<9320gm/hr
  • Features
  • 7200 Litres air per Hour
  • Power 90 Watts
  • Noise Level 45 db.
  • Diffuser Size 1000mm
  • Better Effluent Quality
  • Reduces BOD Levels
Septic Tank Conversion System for BOD<11654gm/hr
  • Features
  • 9000 Litres air per Hour
  • Power 170 Watts
  • Noise Level 45 db.
  • Diffuser Size 1000mm
  • Easy to Install
  • Can Fit in Existing Septic Tank
Septic Tank Conversion System for BOD<15414gm/hr
  • Features
  • 12000 Litres air per Hour
  • Power 230 Watts
  • Noise Level 45 db.
  • Diffuser Size 1000mm
  • Economic Treatment System
  • Avoid Rotten Egg Smell