Underground Drainage Systems
Kitemark certified PVC-U systems for foul, surface water, and combined drainage. Engineered for decades of reliable buried service with ring seal joints for fast, flexible installation.
Pipe Systems & Chambers
Complete range from gully to main sewer connection.
Ring Seal Joints for Reliable Installation
Our ring seal joint system provides fast, reliable connections without solvent cement. Rubber seals accommodate ground movement while maintaining watertight performance under test.
- No setting time—immediately secure
- Flexibility for ground movement
- Reusable seals for adjustment
- Watertight under test conditions
System Components
- Pipes: 3m & 6m lengths, plain ended & socketed
- Bends: 15°, 30°, 45°, 87.5°, 92.5°
- Junctions: 45° & 87.5°, equal & reducing
- Access Fittings: Access pipes, bends, covers
- Chambers: 320mm & 450mm diameter
- Gullies: Bottle, yard, and adaptors
BBA Certified Inspection Chambers
BBA Certificate 09/4705 covers Aquaflow Inspection Chambers for foul water (Approved Document H1) and rainwater (H3) drainage. Independent assessment confirms 50+ year service life.
Originally certified 26 January 2010 (4th issue: 19 April 2022).
Download BBA CertificateStandards & Compliance
- Pipe standard: BS EN 1401-1
- Ring stiffness: SN4 (standard) and SN8 (heavy duty)
- Cover depth: 0.6m to 10m (depending on traffic loading)
- Building Regs: Approved Documents H1 (foul) and H3 (rainwater)
- Colours: Terracotta (RAL 2009), Black (RAL 9005)
Need Technical Support?
Our technical team can provide guidance on bedding requirements, gradient calculations, and Building Regulations compliance.