Diamond DMS3 Sewage Treatment Plant 5-11PE

£3,540.00

The Diamond DMS range of sewage treatment plants offer a simple, reliable and discreet solution for off mains properties housing 1 up to 20 people. Typical uses include domestic homes and small commercial businesses such as farm shops, B&Bs and glamping sites. The standard tank models come supplied with a weather proof kiosk and low air pressure alarm beacon and blower inside.

The patented Diamond design not only gives you high quality process, but also provides you with a discreet, efficient and cost effective solution for the longevity of the plant.

The DMS3 is suitable for properties housing 5 to 11 persons with a tank capacity of 3030 L. See other capacities here.

Key Features

  • Longer emptying cycles (up to 3 years desludge) - due to the highly efficient aeration process which breaks down organic matter at a reduced sludge growth rate.

  • No internal electrical or mechanical moving parts

  • Handles Seasonal Fluctuations - Efficient performance even at just 10% capacity — perfect for sites with variable occupancy or future growth in mind.

  • Fully tested, accredited and certified - under European Standard BS EN12566-3 2014 approval which allows a CE mark.

  • Meets consent standards - of 20mg/l BOD; 30mg/l SS; 20mg/l NH4 as a minimum.

  • Part H2 UK - of building regulations.

  • Designed using the British Water Code of Practice Flows and Loads - to ensure that the tank is correctly sized.

  • Additional published test results:* - total ‘P’ mean average removal 52%, mean concentration 3.8mg/l - total ‘N’ mean average removal 52.2%, mean concentration 25mg/l

  • Odourless plant

  • Flushest lids to the ground - creating perfect integration in to the landscape.

  • Compact in design - keeps the excavation to a minimum and installation simple.

  • Range of invert depths - for complicated sites, allowing more discharge options

Operating Principle

  1. The wastewater flows into the main tank and enters directly into the bio-chamber. The bio-chamber is a zone where the solids circulate continuously; this is achieved by air rather than mechanical or electrical parts inside the tank.

  2. The draft tube enables the solids to be drawn back up into the central aeration chamber and re-circulated through the treatment process.

  3. The treated liquid then exits through the dip pipe and is discharged safely in to the environment, meeting the required consent standard.

The Diamond DMS range of sewage treatment plants offer a simple, reliable and discreet solution for off mains properties housing 1 up to 20 people. Typical uses include domestic homes and small commercial businesses such as farm shops, B&Bs and glamping sites. The standard tank models come supplied with a weather proof kiosk and low air pressure alarm beacon and blower inside.

The patented Diamond design not only gives you high quality process, but also provides you with a discreet, efficient and cost effective solution for the longevity of the plant.

The DMS3 is suitable for properties housing 5 to 11 persons with a tank capacity of 3030 L. See other capacities here.

Key Features

  • Longer emptying cycles (up to 3 years desludge) - due to the highly efficient aeration process which breaks down organic matter at a reduced sludge growth rate.

  • No internal electrical or mechanical moving parts

  • Handles Seasonal Fluctuations - Efficient performance even at just 10% capacity — perfect for sites with variable occupancy or future growth in mind.

  • Fully tested, accredited and certified - under European Standard BS EN12566-3 2014 approval which allows a CE mark.

  • Meets consent standards - of 20mg/l BOD; 30mg/l SS; 20mg/l NH4 as a minimum.

  • Part H2 UK - of building regulations.

  • Designed using the British Water Code of Practice Flows and Loads - to ensure that the tank is correctly sized.

  • Additional published test results:* - total ‘P’ mean average removal 52%, mean concentration 3.8mg/l - total ‘N’ mean average removal 52.2%, mean concentration 25mg/l

  • Odourless plant

  • Flushest lids to the ground - creating perfect integration in to the landscape.

  • Compact in design - keeps the excavation to a minimum and installation simple.

  • Range of invert depths - for complicated sites, allowing more discharge options

Operating Principle

  1. The wastewater flows into the main tank and enters directly into the bio-chamber. The bio-chamber is a zone where the solids circulate continuously; this is achieved by air rather than mechanical or electrical parts inside the tank.

  2. The draft tube enables the solids to be drawn back up into the central aeration chamber and re-circulated through the treatment process.

  3. The treated liquid then exits through the dip pipe and is discharged safely in to the environment, meeting the required consent standard.

Product Specifications

Blower

Blower consumption (kW): 0.050

Kiosk consumption (kW): 0.060

Size: 3030 litre, 5-11 person

Max Outside Diameter (mm): 1960

Height to Inlet (mm): 1830

Inlet Invert Depth (mm): 760

Height to Outlet (mm): 1730

Max Height/ In Ground Depth (mm): 2590

Weight (kg): 192

25 Year Warranty

Download Specification



Delivery & Returns

  • Free delivery for England, Wales, and most of mainland Scotland. Additional charges may apply for the Scottish Highlands, Scottish Islands, Northern Ireland, Isle of Man, Channel Islands, or other remote locations, confirmed before order confirmation or dispatch.

  • Most orders are fulfilled within 10 working days from payment. Larger or specialist items may take longer — please contact us if your order is time-critical.

  • Offloading is the customer’s responsibility. Suitable equipment should be available to safely remove goods from the delivery vehicle.

  • For full delivery details, see our Delivery Policy.

  • Returns & Refunds: Standard items can be returned within 14 days of receipt, subject to our Returns & Refunds Policy. Many products are bespoke or custom-made (modified dimensions, fittings, pumps, colours, etc.) and cannot be returned unless faulty.