Septic tanks from Anua provide an economic and reliable solution for domestic dwellings without mains drainage. Anua’s septic tanks are available in the traditional spherical (onion) shape or as a low profile, horizontal cylindrical tank, depending on customer requirements. Our septic tanks cater for applications ranging from single dwellings to large residential or commercial developments.
Anua septic tanks benefits
- All Anua septic tanks are made of Glass Reinforced Plastic (GRP), a strong, light, chemically resistant and watertight material
- Highly effective BS EN 12566 – 1 certified product
- Proven reliability
- No moving internal parts
- Easy to install
- Low cost installation and maintenance
- Lockable cover
- Annual desludge
- Stable base for storage
- Minimal visual impact
- Adaptability of design to client’s requirements
How it works
A septic tank is a separation system, where the clarified effluent is discharged:
1. Raw sewage enters the first stage of the tank where solids settle by gravity to the bottom of the tank
2. Sludge levels reduce within this stage with the aid of naturally occurring anaerobic digestion
3. The flow passes upwards through further baffle arrangements providing further clarification
4. The settled effluent is displaced from the tank by the incoming sewage flow
5. The partially treated effluent then flows into the percolation area or other suitable filter bed system.
6. Sludges built up in the base of the septic tank are emptied annually to ensure continued efficient running
Specifications
Anua spherical septic tanks are available in four sizes:
| Tank Capacity | Diameter | Outlet Invert | Overall Height | Weight | No. of personsto be served |
| Litres | mm | mm | Mm | Kg | @ 180 l/person/day |
| 2800 | 1850 | 1620 | 2665 | 115 | 4 |
| 3800 | 1985 | 1785 | 2765 | 140 | 10 |
| 4500 | 2204 | 1955 | 2910 | 165 | 14 |
| 6000 | 2300 | 2375 | 3400 | 230 | 22 |
If you require any further information, please contact us on 01923 261660 - We will be happy to offer our free impartial adivce to any of your drainage questions
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