Diamond DMS5 Domestic Sewage Treatment Tank (14-20 Occupants)

The Diamond DMS5 Domestic Sewage Treatment Plant is a modern, high-performance solution for homes and small commercial properties where mains drainage isn't an option. Formerly known as the WPL Diamond, this treatment plant is designed to cater to properties with 14 to 20 occupants, making it ideal for a wide range of commercial and domestic applications. With its discreet and compact design, the Diamond DMS is perfect for any location, blending seamlessly into the landscape with its flush-to-the-ground lid, ensuring minimal visual impact.

Unlike traditional septic tank systems, the Diamond DMS offers a faster, more environmentally friendly treatment process. It requires no chemicals, allowing the final effluent to be safely discharged into a drainage field or watercourse. Homeowners and business owners can enjoy a longer emptying cycle of up to 3 years between desludging, making it a low-maintenance and cost-effective option.

Built to the highest standards, the Diamond DMS is fully compliant with BS EN12566-3 and is CE marked, meeting all the necessary General Binding Rules for small sewage treatment plants. Its robust construction from glass-reinforced plastic (GRP) includes a UV-stabilised external gel coat finish, ensuring durability and reliability. With a generous 25-year tank warranty and two years for the blowers*, you can have peace of mind that this system is built to last.

The Diamond DMS is designed to adapt to all ground conditions, whether 'wet' or 'dry,' and offers a range of invert depth extensions (select from dropdown), providing flexible discharge options even on complicated sites. The compact design means minimal excavation is required during installation, saving time and reducing disruption.

This advanced treatment plant not only meets the increased volume of water usage in modern life but also ensures a cleaner, odour-free, and more environmentally conscious solution for wastewater management. Made in the UK and built to handle the demands of today’s lifestyle, the Diamond DMS5 Domestic Sewage Treatment Plant is a smart, sustainable investment for any property.

Benefits of the Diamond DMS5 Domestic Sewage Treatment Tank (14-20 Occupants):

• High-performance DMS for 14 to 20 occupants
• Durable GRP with UV stable gel coat finish
• Compact design with flush-to-the-ground lid
• Up to 3 years between desludging
• Suitable for wet or dry ground conditions
• Minimal excavation required
• BS compliant & CE marked

Product Specifications:

Population: 14-20

Max Outside Diameter (mm): 1990

Height to Inlet (mm): 2000

Inlet Invert Depth (mm): 780

Height to Outlet (mm): 1930

Max Height/In Ground Depth (mm): 2780

Weight Empty (kg): 210

Total Capacity (L): 3975

Factory Fitted Invert Extension: Select from dropdown

Please note: Please ensure all necessary permissions have been granted and due consideration has been given to:

• Planning permission, building regulations, and other regulating or interested parties.

• Sizing of the plant is in line with the British Water Flows and Loads codes of practice.

*25 years warranty and two years for the blowers is subject to correct installation, consistent influent conditions and regular plant maintenance as per the manufacturers’ instructions.