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Domestic & Commercial Sewage Treatment Plants
A Sewage Treatment Plant is a great solution for treating sewage when your property is not connected to a mains sewer. They operate by removing contaminants from wastewater allowing the treated effluent to be discharged to a watercourse or drainage field.
Sewage Treatment Plants are typically put in place when you cannot install a septic tank within your premises. If you're unsure of which size plant you require, it depends on how many people will be using it. Our quality range of sewage treatment plants are available for 6 - 300 people.
Our range of sewage systems are produced by well trusted manufacturers including Klargester, Marsh Industries, Tricel and Harlequin.
Free delivery is available on certain sewage treatment plants - if you require any further help, please don't hesitate to get in touch.
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BIOROCK BEASY-2000 Non Electric Sewage Treatment Plant 2PE
The BIOROCK BEASY 2000 is a below-ground non-electric sewage treatment plant. Being powerless, this makes it ideal for off-grid applications in remote..
£2,355.00 (ex. VAT) £2,826.00 (inc. VAT)
Marsh Portapura 2 PE Portable Above Ground Sewage Treatment Plant
Marsh Portapura 2 PE sewage treatment plants are designed for above or below-ground installation and are ideal for workshops, temporary accommodations..
£2,775.00 (ex. VAT) £3,330.00 (inc. VAT)
Marsh Portapura 3 PE Portable Above Ground Sewage Treatment Plant
Marsh Portapura 3 PE sewage treatment plants are designed for above or below-ground installation and are ideal for workshops, temporary accommodations..
£3,135.00 (ex. VAT) £3,762.00 (inc. VAT)
Marsh Ensign 4PE Sewage Treatment Plant
The Marsh Ensign 4 is an economical sewage treatment plant which complies with BS EN 12566-3. With a population equivalent of 4, this treatment plant ..
£1,775.00 (ex. VAT) £2,130.00 (inc. VAT)
Marsh Ensign Ultra 4PE Sewage Treatment Plant
The Marsh Ensign Ultra 4 is an upgrade on the Ensign Standard sewage treatment plant which also complies with BS EN 12566-3. With a population equival..
£2,345.00 (ex. VAT) £2,814.00 (inc. VAT)
WTE VORTEX 4 Person Sewage Treatment Plant
Manufactured by WTE the VORTEX sewage treatment plant is a premium version of WTE's low-cost QUANTUM sewage treatment plant. The VORTEX is an Advanced..
now £1,925.00 (ex. VAT) was £2,394.00 (inc. VAT) now £2,310.00 (inc. VAT)
GRAF One2Clean Sewage Treatment Plant 5PE
The GRAF One2Clean system is a single-chamber wastewater treatment system capable of offering up to 99% pollutant removal with SBR lifting technology...
£2,035.00 (ex. VAT) £2,442.00 (inc. VAT)
Marsh Portapura 5 PE Portable Above Ground Sewage Treatment Plant
Marsh Portapura 5 PE sewage treatment plants are designed for above or below-ground installation and are ideal for workshops, temporary accommodations..
£3,595.00 (ex. VAT) £4,314.00 (inc. VAT)
Tricel NOVOUK6GSR - 6 Person Economy Sewage Treatment Plant | 6PE
The Tricel Novo 6GSR is an economy version of the Tricel Novo UK6 wastewater treatment plant. This plant is only available with a gravit..
£1,790.00 (ex. VAT) £2,148.00 (inc. VAT)
WTE QUANTUM 6 Person Sewage Treatment Plant
Manufactured by WTE the QUANTUM sewage treatment plant is an economy version of WTE's best-selling VORTEX sewage treatment plant. The QUANTUM is an Ad..
£1,395.00 (ex. VAT) £1,674.00 (inc. VAT)
BIOROCK Monoblock-2 V3 Non Electric Sewage Treatment Plant 6PE
The BIOROCK Monoblock-2 is a below-ground non-electric sewage treatment plant. Being powerless, this makes it ideal for off-grid applications in remot..
£3,801.00 (ex. VAT) £4,561.20 (inc. VAT)
Clearwater BioAir CW2 - 6 Person Economy Sewage Treatment Plant | 6PE
The new Clearwater BioAir CW2 sewage treatment plant uses aerated technology to produce a high-level water quality discharge. This CW2 version is suit..
£1,916.00 (ex. VAT) £2,299.20 (inc. VAT)
Harlequin CAP6 - 6 Person Sewage Treatment Plant
The Harlequin CAP6 is a compact sewage treatment plant designed specifically for domestic installations for up to 6 inhabitants (4 bedrooms). It is a ..
£2,135.00 (ex. VAT) £2,562.00 (inc. VAT)
Hydroclear 6 Person GRP Sewage Treatment Plant HGRP6/EC
Manufactured by Harlequin, this GRP version of the Hydroclear sewage treatment plant is a shallow dig option with an overall depth of 1640mm! ..
£2,695.00 (ex. VAT) £3,234.00 (inc. VAT)
Hydroclear 6 Person Sewage Treatment Plant HC6
The HydroClear, represents significant progress for the domestic wastewater industry. Contemporary design engineering and analysis software and sta..
£2,195.00 (ex. VAT) £2,634.00 (inc. VAT)
Klargester BioDisc BA - 6 Person Sewage Treatment Plant | 6PE
The Klargester Domestic BioDisc is a package sewage treatment plant designed for use in domestic dwellings, small offices and light industrial premise..
£4,541.00 (ex. VAT) £5,449.20 (inc. VAT)
Klargester BioTec+ 2 - 6 Person Sewage Treatment Plant | 6PE
The new Klargester BioTec+ 2, sewage treatment plant is suitable for properties up to and including 4 bedrooms. The BioTec+ uses proven aerated techno..
£2,415.00 (ex. VAT) £2,898.00 (inc. VAT)
Marsh Ensign 6PE Sewage Treatment Plant
The Marsh Ensign 6 is an economical sewage treatment plant which complies with BS EN 12566-3. With a population equivalent of 6, this treatment plant ..
£1,765.00 (ex. VAT) £2,118.00 (inc. VAT)
Marsh Ensign Ultra 6PE Sewage Treatment Plant
The Ultra Model of the Marsh Ensign 6PE Sewage Treatment Plant is an upgrade on the Ensign Standard sewage treatment plant which also complies with BS..
£2,485.00 (ex. VAT) £2,982.00 (inc. VAT)
Marsh Gemini 6PE Combined SBR and Phosphate Removal Plant
The Marsh Gemini is a combined sewage treatment system that has been designed to significantly reduce the number of nitrates and phosphates discharged..
£4,190.00 (ex. VAT) £5,028.00 (inc. VAT)
Marsh Nutra-Lite 6PE Sewage Treatment Plant
The Marsh Nutra-Lite range of sewage treatment plants has been designed to significantly reduce the number of nitrates discharged during wastewater tr..
£2,195.00 (ex. VAT) £2,634.00 (inc. VAT)
Marsh Shallow Ensign 6 Person Sewage Treatment Plant
The Marsh Shallow Ensign 6 is a shallow-dig sewage treatment plant that complies with BS EN 12566-3. It is ideal for excavating in hard rock or in dif..
£2,780.00 (ex. VAT) £3,336.00 (inc. VAT)
Marsh Ultra Polylok L 6 Person Sewage Treatment Plant
The Marsh Ultra Polylok L6 (UPL) is a domestic sewage treatment plant which complies with BS EN 12566-3. With a population equivalent of 6, this sewag..
£2,295.00 (ex. VAT) £2,754.00 (inc. VAT)
Tricel NOVOUK6 - 6 Person Sewage Treatment Plant | 6PE
Tricel Novo wastewater treatment plants are reliable, easy to install and simple to maintain for all wastewater requirements. The Tricel N..
£2,065.00 (ex. VAT) £2,478.00 (inc. VAT)
Sewage Treatment Plant Helpful Guides
We've compiled a list of helpful blogs that should hopefully answer any questions or purchasing queries that you may have:
- Sewage treatment plant buyers guide
- What size plant do I need?
- How do sewage treatment plants work?
- Designing a drainage field for a sewage treatment plant
- 10 tips for sewage treatment plant installation
FAQ's
How do sewage treatment plants work?
Sewage treatment plants work by eliminating contaminants from wastewater & household sewage by circulating air within the unit to prompt bacterial growth, which breaks down the sewage. These systems make for cleaner and more environmentally friendly effluent.
Step by step process:
- Sewage travels into the first chamber of the plant where oils/greases float and solids settle.
- Liquids move into a second chamber where air is pumped in, growing bacteria that break down contaminants.
- Liquids then move into a final settlement tank where solids sink before discharge.
Are there any regulations to be aware of?
In order to comply with regulations, UK sewage treatment plants must be EN 12566-3 2005 certified. Installations should always be carried out by a qualified professional, and local guidelines should be checked for planning permission requirements.
Why should I get a sewage treatment plant?
Sewage treatment plants offer several benefits:
- Long lifespan: 40–50 years.
- Low running costs: Minimal electricity, annual maintenance.
- Environmentally friendly: Safe effluent discharge into fields or watercourses (subject to local guidelines).
How close to a house can a sewer treatment plant be?
Regulations require treatment plants to be at least 7 metres away from building foundations and over 10 metres away from a watercourse.
How to maintain a sewage treatment plant?
Maintenance includes:
- Testing influent and effluent quality
- Monitoring chemical levels
- Regular equipment/pipeline inspections
- Proactive cleaning/lubrication
- Annual “de-sludge” (more frequent for cheaper tanks)
Do you need to empty a sewage treatment plant?
Yes. It’s recommended every 6 months to prevent sludge build-up, odours, and reduced efficiency.
What to know before installing?
Before installation you may need:
- Planning permission
- Building regulations approval
What's the structure of a sewage treatment plant?
Sewage treatment plants generally have two chambers:
- Chamber 1: Separates liquids; solids sink.
- Chamber 2: Motor circulates air to break down sewage. Clean effluent is then discharged.
What is the lifespan of a sewage treatment plant?
The typical lifespan is 40–50 years for the plant itself, with equipment lasting 15–20 years.
