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Over 30 years’ experience in manufacturing innovative products and delivering customer-focused services
- Leak detection
- Water sustainability
- Oil storage maintenance & compliance
- Drainage & interceptor maintenance
- Flood defence
Drainage products
Over 30 years’ experience in manufacturing innovative products and delivering customer-focused services
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Andel’s underground cesspool tanks provide a safe, secure, cost-effective and long-lasting solution for off-mains wastewater storage, with no discharge to the environment.
Regular emptying by a licensed waste contractor is required, making these tanks ideal for low-use or temporary installations.
The seamless, ribbed construction prevents leakage and resists deformation under ground pressure, making installation simple and secure. HDPE offers key advantages over traditional GRP tanks, including lighter handling, easier transport, and reduced risk of damage during delivery or backfilling.
Cesspool tanks, sometimes known as cesspits, are fully enclosed, sealed tanks designed to collect and store untreated domestic wastewater where no mains drainage or sewage treatment is available.
Recent changes to regulations restrict the use of traditional septic tanks – particularly where discharge affects surface water or groundwater. Cesspools are fully sealed and legally compliant, making them ideal for sites with no safe outflow. While regular emptying is required, cesspools pose no pollution risk and avoid the regulatory complexity now associated with septic tanks.
Andel’s cesspool tanks are manufactured using a three-stage production process: rotational moulding, controlled cooling and final chilling. This method creates a seamless, high-strength structure with uniform wall thickness.
An automated control system ensures consistent quality and durability in every tank produced.
Andel’s cesspool tanks are supplied ready for underground installation and require no power or treatment components.
Regular emptying must be carried out by an authorised waste disposal contractor in accordance with Environment Agency guidelines. High-level alarms are recommended to prevent overflow between emptying intervals, and are available as optional accessories.
Each tank can be fitted with a riser/extension to suit the site depth and surface finish.
Additional equipment: Extention Shaft NSO 600.
All tanks are manufactured from durable, lightweight HDPE, offering long service life, easy handling and greater resistance to leakage compared with traditional GRP tanks.
Septic tanks are no longer recommended under current regulations because they discharge untreated effluent into the ground. Cesspool tanks provide a fully sealed, environmentally responsible and cost-effective alternative.
Andel offers tanks from 2,000 to 5,000 litres, covering everything from small sites to larger commercial installations.
Lockable airtight hatches and optional extension shafts with screw caps ensure secure, easy access while preventing unpleasant smells.
Yes. HDPE construction is leak-tight, impact resistant and designed to withstand frost, soil pressure and pH variations.
Yes. The lightweight modular design allows installation without heavy machinery, ideal for restricted or sensitive sites.
As sealed units, cesspools require periodic emptying by licensed tankering services in line with Environment Agency requirements.
Andel cesspool tanks come with a 10-year warranty, reflecting confidence in their quality and long-term performance.
