| Item | Brick Septic Tanks | Reinforced Concrete Septic Tanks | Plastic Septic Tanks | FRP Septic Tanks |
|---|---|---|---|---|
| Material Properties | Poor acid and alkali resistance | Corrosion resistance | Plastic material offers excellent resistance to a variety of organic solvents, acids and alkalies | Not easy to leak, durable, and do not cause pollution to the environment. |
| Floor Area | Require a large floor area. | Require a large floor area. | Require a small floor area, generally, only 45% of the traditional septic tanks. | Require a small floor area, generally, only 45% of the traditional septic tanks. |
| Construction Conditions | Weather conditions such as heavy rain will have a serious influence on the construction progress. | Weather conditions such as heavy rain will have a serious influence on the construction progress. | Integral structure makes it can be installed flexibly with a short construction period. There fore, weather conditions will have a slight influence on the construction progress. | Integral structure makes it can be installed flexibly with a short construction period. There fore, weather conditions will have a slight influence on the construction progress. |
| Costs | High costs | High costs | Low costs | Low costs, only 80% of traditional reinforced concrete structure |
| Construction Period | Long construction period, generally last 10 to 20 days. | On site assembly and installation. Short construction period, only take 4 or 5 days. | 1 day | 1 day |
| No. of Construction Workers Required | 6–10 general workers | 4–5 general workers | 4–5 general workers | 4–5 general workers |
| Pressure Resistance | Great pressure resistance | Great pressure resistance | Poor pressure resistance compared with FRP septic tanks | Great pressure resistance |
| Service Life | Short service life | Long service life | Service life up to 20–30 years | Service life up to 30–50 years |
| Quantities | Large construction site requires a large floor area, therefore, the volume of earthwork is generally large. | Large construction site requires a large floor area, therefore, the volume of earthwork is generally large. | Small volume of earthwork, only 40% of the traditional septic tanks | Small volume of earthwork, only 40% of the traditional septic tanks |
| Maintenance & Cleaning | General effluent quality, large sludge deposit quantity, short cleaning period | General effluent quality, large sludge deposit quantity, short cleaning period | Better effluent quality, significantly reduced sludge deposit quantity, long cleaning period | Better effluent quality, significantly reduced sludge deposit quantity, long cleaning period |
