Harlequin HydroClear 40 Sewage Treatment Plant | 31-40 Person
The HydroClear 40 Sewage Treatment Plant is a high-performance wastewater treatment system designed for larger households and multi-occupancy properties serving up to 40 people. It efficiently treats domestic sewage, producing a high-quality effluent that meets UK discharge regulations for release into a watercourse or drainage field, where permitted.
Using proven Moving Bed Biological Reactor (MBBR) technology, the HydroClear delivers up to 97.5% pollutant removal while remaining energy efficient, reliable and simple to maintain.
Key Features
- Suitable for properties with up to 40 people
- Up to 97.5% pollutant removal
- Proven Moving Bed Biological Reactor (MBBR) technology
- Super quiet external air blower
- One-piece rotationally moulded MDPE tank
- Compact footprint for easier installation
- Low-profile lockable access covers
- Low running and maintenance costs
- Continues operating as a septic tank during power outages
- EN 12566-3 certified for the UK
- 2-year warranty (upon product registration)
- Designed for a service life exceeding 20 years
Specification
- Population Served: 31-40 People
- Treatment Technology: MBBR
- Tank Material: MDPE
- Inlet Invert: 1100mm
- Outlet Invert: 1150mm
- Blower: External 216W
- Power Supply: 230V
- Energy Consumption: Approx. 1.8 kWh/day
- Desludging: Approximately every 6 months (depending on usage)
- Certification: EN 12566-3
Suitable Applications
- Detached homes
- Rural properties
- Barn conversions
- Holiday cottages
- New-build homes
- Properties without access to mains drainage
All HydroClear sewage treatment plants are supplied with a weatherproof external air blower, helping to deliver reliable treatment performance while keeping operating noise to a minimum.
If you need advice choosing the right sewage treatment plant, our experienced team is here to help. We can also arrange a professional site visit where required to assess your property and recommend the most suitable sewage treatment solution.
Optional Extras
Low Pressure Alarms – Provides an early warning if blower pressure drops, helping to identify potential issues before they affect the performance of the sewage treatment plant.


