Off-mains drainage consultants and suppliers
Your trusted partner across all domestic, commercial and industrial drainage solutions.
Envirocare OM Tank Store
Shop our range of tanks delivered directly to site.
Drainage Consultancy
Regulatory compliance services, expert advice and practical support.
Installation, Service & Repair
Design, install and maintain new or existing drainage systems.
Featured Products from the Envirocare OM Store.
The Garantia Barrica Rainwater Barrel combines efficient rainwater storage with a decorative barrel-style design, inspired by traditional wine barrels. Its wood-effect finish adds character to gardens, patios, or terraces, while the included tap makes watering plants convenient.
Capacity & Dimensions:
260 L: Length: 650mm Width: 650mm Height: 930mm
420 L: Width: 780mm Height: 1050mm
Colour: Brown wood-effect – decorative and natural appearance
Barrel-style design: Adds rustic charm to outdoor spaces
Tap included: Easy access for garden irrigation
This tank provides a practical and attractive solution for homeowners who want functional rainwater storage with a classic barrel aesthetic.
The Garantia Extra Slim Stone-Effect Water Butt offers efficient rainwater storage in a tall, narrow design, perfect for tight outdoor spaces such as patios, balconies, or small gardens. Its stone-effect textured finish and neutral sand beige colour complement a variety of garden styles.
Capacity: 400 litres – suitable for garden irrigation
Dimensions: Length: 280mm Width: 1190mm Height: 1840mm – ultra-slim, space-saving profile
Colour: Sand Beige – natural, neutral finish
Space-saving design: Ideal for narrow spaces or corners
Stone-effect texture: Decorative, realistic appearance
This tank provides practical water storage while maintaining a subtle, stylish look, making it an excellent choice for homeowners seeking compact and attractive rainwater solutions.
The Tuffa 1400 Litre (vertical) Plastic Water Tank is a robust, corrosion-resistant water storage solution designed for a wide range of domestic, agricultural, and commercial applications. Manufactured using rotomoulded, UV-stabilised polyethylene, it delivers exceptional durability, long service life, and reliable performance in all weather conditions.
This tank has a capacity of 1,400 litres and can be interlinked with other tanks to achieve higher storage volumes.
Tuffa water tanks are engineered for versatility and longevity, making them suitable for everything from irrigation and horticulture to construction, manufacturing, and sports facilities.
Key Features
Rotomoulded polyethylene construction – seamless, tough, and corrosion-resistant
UV-stabilised and weatherproof – suitable for long-term outdoor installation
2″ BSP female bottom outlet – ideal for higher flow requirements
Screened vent – prevents debris ingress while maintaining airflow
4″ or 8″ inspection hatch / sealed manway cover – easy access for inspection and cleaning
Compatible with pumps, rainwater diverters, and additional fittings
Maintenance-free design – no corrosion or degradation over time
Manufactured from recyclable polyethylene
Suitable for domestic, agricultural, commercial, industrial, horticultural, and irrigation applications
Tough, durable, and long-lasting construction. Weatherproof and UV-resistant for outdoor use
Corrosion-resistant and hygienic
Options
Mains fed water kit consisting of ¾” ball float valve inlet and a 2” bye law 30 kit
1″ BSP female bottom outlet of no bottom outlet
Tuffa tanks can be delivered to the side of the vehicle via HIAB for an additional cost.
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 DMS2 is suitable for properties housing 1 to 6 persons with a tank capacity of 2270 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
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.
The draft tube enables the solids to be drawn back up into the central aeration chamber and re-circulated through the treatment process.
The treated liquid then exits through the dip pipe and is discharged safely in to the environment, meeting the required consent standard.
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Compliance with regulations
Our services fully align with Environmental Agency legislation, British Water Standards and all relevant building and planning guidelines.
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Service you can trust
A family business since 1995 we’re trusted by our clients to provide expert knowledge, efficient service and value for money.
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Commitment to sustainability
Focused on providing responsible solutions that demonstrate a commitment to protecting the environment.
Our Partners
We’re proud to have longstanding relationships with the UK’s most trusted manufacturers and local companies.
News
Trusted by our customers
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Karen and Mat
“Thanks so much for your positivity and support and for making this seem super easy, it really does make the world of difference.”
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Vanessa
“I cannot thank you enough for your effort, professionalism, and friendliness in helping us get to a resolution over the septic tank. It is not often, that you come across such an excellent service where someone goes above and beyond.”
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Neville
“Thanks for giving me such a good overview of what we need to do to make our tank compliant.”