The Marsh Shallow Ensign 25 Person Sewage Treatment Plant is a low-profile treatment plant for sites where deep digging is difficult. At just 1.6 metres high, it suits rock, high water tables and tight sites, and it serves up to 25 people. That makes it a good fit for a small development, campsite or rural business.
Why choose the Shallow Ensign 25 Person Sewage Treatment Plant
Most treatment plants of this size stand well over 2 metres tall. By contrast, this unit needs a much shallower hole, so installation is quicker, safer and often cheaper. Inside, it works in the same way as the standard Ensign, with no moving parts in the tank.
Key features
- Only 1.6 metres high
- Ideal for rock and high water tables
- No moving parts inside the tank
- External compressor housing as standard
- Tested to BS EN 12566-3
Options
Before adding the Shallow Ensign 25 Person Sewage Treatment Plant to your basket, choose a gravity or pumped outlet and a deeper inlet if your drain arrives lower than standard. The price updates as you pick each option.
Servicing and permits
Like all treatment plants, this unit needs desludging from time to time, and the compressor should be serviced regularly. For this reason, we recommend a service contract with a local engineer. In addition, please check with the Environment Agency, SEPA or Natural Resources Wales whether your discharge needs a permit or falls under the General Binding Rules.
Specification
- Population equivalent: 25
- Length: 4340mm
- Width: 1812mm
- Height: 1610mm
- Standard inlet depth: 500mm
- Empty weight: 380kg






