Free UK Mainland Delivery On This Product | Lead Times Vary
Rated 4.8/5 by Direct Drainage Customers
Based on over 600 verified reviews
Very helpful from the start to the finish
Items were despatched quickly and arrived the next day. Would recommend.
North Hayne Farm Cottages | 26 June 2026
Cheapest price I could find for the pump
Cheapest price I could find for the pump and delivery the next day what more could you want.
Sam Jukes | 5 November 2025
I ordered a septic tank it was delivered within a week and the delivery driver left it in the exact right place and time. Would definitely use this company again, thanks so much.
Eve Harland | December 2025
Everything you need to know about grease control, oil separators, silt traps and washdown systems.
The correct pollution control system depends on the type of contaminants present, the drainage application and where the wastewater will be discharged.
Our range includes grease traps, oil separators, silt traps and washdown separators designed for different commercial and industrial applications.
For example, grease separators are commonly used in commercial kitchens, while oil separators are used in areas where surface water may become contaminated with hydrocarbons.
If you're unsure which system is suitable for your project, our team can help you identify an appropriate product based on your requirements.
Grease traps and oil separators are designed to manage different types of wastewater contamination.
Grease traps and separators are primarily used in commercial kitchens, restaurants and food preparation facilities to capture fats, oils and grease (FOG) before wastewater enters the drainage system.
Oil separators are designed to separate hydrocarbons, such as petrol and diesel, from contaminated surface water. They are commonly used at car parks, forecourts, workshops and industrial facilities.
Choosing the correct system is essential, as grease management equipment and hydrocarbon separators are not generally interchangeable.
Full retention and bypass separators are designed for different drainage conditions.
Full retention separators are designed to treat the full design flow passing through the system. They are commonly used where there is a higher risk of significant oil contamination, such as vehicle maintenance areas and fuel-handling facilities.
Bypass separators are designed to treat flows up to a specified rate, allowing higher stormwater flows to bypass the treatment chamber. They may be suitable for lower-risk surface water drainage applications.
The correct separator depends on the site's pollution risk, drainage catchment and discharge requirements.
A silt trap is designed to capture sediment, sand, grit and other suspended solids before they enter downstream drainage systems.
Silt traps are commonly used in vehicle wash areas, construction sites, commercial premises and surface water drainage installations.
By reducing the amount of sediment entering the drainage network, silt traps can help minimise blockages, protect downstream equipment and reduce maintenance requirements.
The appropriate size and design depend on the volume of water and expected sediment loading.
Washdown separators and silt management systems are commonly used in commercial vehicle washing facilities, including car washes, bus depots, workshops and industrial cleaning areas.
These systems help capture sediment and other contaminants generated during washing operations.
However, detergents and cleaning chemicals can affect oil separation, meaning conventional oil separators may not be suitable for every washdown application.
The correct system depends on the cleaning activities, wastewater characteristics and discharge arrangements. Additional treatment or trade effluent consent may be required.
Separator sizing depends on several factors, including the drainage area, expected flow rate, type of contamination and intended application.
For example, oil separator sizing may depend on the surface area being drained and the site's pollution risk, while grease separator sizing depends on the commercial kitchen's wastewater discharge requirements.
Washdown and silt systems must also account for the expected volume of wastewater and sediment.
Always refer to the manufacturer's sizing guidance and relevant technical specifications before purchasing.
If you're unsure which capacity is required, contact our team for product guidance.
Our pollution control range includes products from established manufacturers, with specifications and certifications varying by model.
UK environmental requirements depend on the application, installation location, drainage arrangements and proposed discharge.
Certain separators may need to meet relevant British or European standards, and some installations require approval or consent from the appropriate authority.
Please refer to the individual product documentation for applicable specifications and certifications. We recommend confirming site-specific requirements with a suitably qualified drainage professional or relevant authority before installation.
Yes. Pollution control equipment requires regular inspection and maintenance to remain effective.
Grease separators need periodic cleaning to remove accumulated fats, oils and grease, while oil separators require inspections and removal of collected hydrocarbons and sediment.
Silt traps and washdown systems must also be emptied or cleaned when sediment accumulates.
Maintenance requirements vary depending on the equipment, frequency of use and contamination levels.
Always follow the manufacturer's maintenance instructions and arrange appropriate waste removal where required.
Our pollution control tanks and separators are dispatched directly from the manufacturer, with delivery lead times varying depending on the product and availability.
Free delivery is available on eligible products to most mainland UK postcodes, although additional charges or restrictions may apply.
Larger systems may require specialist transport, suitable delivery access and appropriate offloading equipment.
For current availability, delivery charges or estimated lead times, please contact our team on 01388 537050.
Use left/right arrows to navigate the slideshow or swipe left/right if using a mobile device
