About Washdown Separators
At Online Tank Store, we supply a range of high-quality washdown separators suitable for commercial vehicle wash bays, agricultural machinery cleaning, fleet maintenance depots, construction equipment, pressure washing facilities and industrial washdown areas. Manufactured in the UK from durable rotationally moulded polyethylene, our separators are built for long-term underground installation and easy maintenance.
Whether you're washing cars, HGVs, tractors, plant machinery or commercial vehicles, our washdown separators provide an effective solution for separating contaminants before wastewater is discharged.
What is a Washdown Separator?
A washdown separator is an underground treatment system that separates contaminants from vehicle wash water before it enters the foul drainage system.
During vehicle washing, wastewater commonly contains:
- Mud and soil
- Sand and grit
- Silt and sediment
- Oils and grease
- Fuel residues
- Hydrocarbons
- General road debris
Without treatment, these contaminants can enter drainage systems, leading to blockages, pollution and increased maintenance costs.
Washdown separators are designed to retain these contaminants within dedicated chambers while allowing cleaner water to leave the system.
Typical Applications
Our washdown separators are suitable for a wide range of commercial and agricultural applications, including:
- Commercial car washes
- Vehicle valeting centres
- Fleet maintenance depots
- HGV and bus wash bays
- Agricultural machinery wash areas
- Construction and plant hire depots
- Pressure washing facilities
- Sports ground maintenance equipment
- Local authority vehicle depots
- Industrial equipment cleaning
Why Choose a Polyethylene Washdown Separator?
Our underground washdown separators offer several advantages over traditional concrete alternatives.
Lightweight Construction
Manufactured from high-strength rotationally moulded polyethylene for easier transport and installation.
Corrosion Resistant
HDPE will not rust or corrode, providing excellent durability in underground installations.
Shallow Dig Design
Reduced excavation depth helps lower installation costs and makes the separators suitable for sites with higher groundwater levels.
Easy Maintenance
Large inspection openings provide easy access for routine emptying and cleaning.
UK Manufactured
Designed and manufactured in the UK using high-quality materials for reliable long-term performance.
Choosing the Right Washdown Separator
Selecting the correct washdown separator depends on several factors, including:
- Type of vehicles being washed
- Frequency of vehicle washing
- Expected flow rate
- Level of contamination
- Available installation space
- Drainage requirements
If you're unsure which model is suitable for your project, our experienced team will be happy to help recommend the most appropriate solution.
