This product is no longer available
Our activated sludge process (ASP) treatment plant has been discontinued in the UK.
For your convenience, product information will remain online until early 2025.
Check out our alternative wastewater products:
ASP domestic sewage treatment plants
Robust and reliable design
Robust and reliable design
1,000's of installations
1,000's of installations
Economical option
Economical option
Compact and discreet
Compact and discreet
The small domestic sewage treatment plant
The Rewatec ASP (formerly known as the Conder ASP) is a small domestic sewage treatment plant that provides superb value for money. With low installation and maintenance costs and a robust and durable design, the ASP is the perfect sewage treatment plant for homes and for smaller commercial projects.
Available in polyethylene, with a very low footprint, the ASP sewage treatment plant services properties of up to 25 people.
With over 6,000 installations already across the UK, the ASP is also considered one of the best domestic sewage treatment plants on the market today.
Example applications
- single houses
- small communities or developments
- small commercial applications
How does the Rewatec ASP work?
The Rewatec ASP is a package treatment plant. It is used to treat domestic wastewater and to provide a much cleaner effluent than a traditional septic tank.
Installed as an activated sludge system, the Rewatec ASP comprises of a single tank. Within this tank there is an inner central biozone chamber and an outer settlement zone.
The wastewater flows into the tank and settles in the central biozone chamber. This is where aeration occurs through the central diffuser.
The water then enters the outer settlement zone prior to discharge where a gravity or pumped option can be specified. Excess sludge is removed periodically by a local service professional.
Rewatec ASP maintenance
We have a network of sewage treatment plant installers and service partners to maximise the life of your Rewatec ASP and to provide years of reliable operation.
Our Rewatec ASP warranty
Our experience in the industry allows us to give you a 10 year warranty for Rewatec ASP wastewater treatment plants and a 12-month internal parts warranty (extending to 5 years after the warranty is activated within 6 months of your delivery date).
CPD training course
Our 45-minute CPD certified course "An introduction to off-mains wastewater management" is ideal for Architects, Consultants, Engineers, Installers and Specifiers looking to learn more about what wastewater treatment is and why it is important, regulatory bodies and the current UK regulations, how systems are designed, and what systems are available.
Options and accessories
Personalise your Rewatec ASP to meet your site requirements, with our wide range of options and accessories.
Technical information
Designed, manufactured and tested in accordance with EN12566-3 and the British Water Code of Practice for Flows and Loads, the Rewatec ASP is suitable for properties of up to 25 people.
Available products
All products are available for populations of up to 25 people.
For installations where a pump is not required to transport wastewater, the gravity version of the Rewatec ASP is the solution for you.
For installations where simple gravity is insufficient for outflow, pumped versions of the Rewatec ASP are available.
This product is no longer available
The Rewatec ASP treatment plant has been discontinued in the UK, but we have other solutions available. Reach out to our team today for assistance for your upcoming project.