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Below Ground Drainage
Our Below Ground Drainage range is designed to help you install reliable underground drainage systems for managing waste and surface water effectively. Whether you’re working on a new build, extension, landscaping project or repair job, quality below ground drainage products support safe water movement and help prevent issues such as pooling, blockages and ground saturation.
Below ground drainage is commonly used for connecting soil pipes, waste outlets and rainwater systems into a secure underground network, directing water away from buildings and outdoor areas. Using the correct pipework, fittings and connectors ensures a watertight installation and reduces the risk of future maintenance problems. With durable materials made to perform in ground conditions, these systems are built for long-term use in both domestic and commercial settings.
For best results, plan the drainage route carefully, ensure the correct fall for steady flow, and use compatible fittings throughout the system. Proper bedding and backfilling also helps protect pipework and maintain stability over time. Whether you’re replacing a damaged section or installing a complete run, having the right components makes the job quicker and more reliable.
Shop online today for below ground drainage supplies with convenient ordering and delivery available.
110mm x 32mm x 32mm Seals Accept MuPVC Waste
The Brett Martin 110mm x 32mm x 32mm Seals (Accept MuPVC Waste) provide a secure transition for connecting 32mm MuPVC waste pipe into a 110mm underground drainage system. Designed to maintain watertight performance, they’re ideal for converting smaller waste inlets into larger drains.
£20.84 INC VAT
110mm x 32mm x 40mm Seals Accept MuPVC Waste
The Brett Martin 110mm x 32mm x 40mm Seals (Accept MuPVC Waste) provide a watertight connection for transitioning MuPVC waste pipe into 110mm underground drainage. Ideal for mixed-size pipework, they support secure installation in foul and surface water drainage systems.
£20.84 INC VAT
110mm x 3m Single Socket Pipe
Brett Martin 110mm x 3m Single Socket Pipe is a durable PVCu soil pipe designed for reliable foul water and drainage systems. Manufactured to high quality standards, it provides a strong, lightweight solution for underground and above-ground soil drainage installations.
£15.56 INC VAT
110mm x 45 deg Double Socket Bend
Brett Martin 110mm x 45° Double Socket Bend is a durable PVCu underground drainage fitting designed to change the direction of 110mm drainage pipework. Featuring double socket push-fit connections and manufactured to British Standards, it provides a secure and reliable solution for foul water and surface water drainage systems.
£5.98 INC VAT
110mm x 45 deg Double Socket Branch
Brett Martin 110mm x 45° Double Socket Branch is a durable PVCu underground drainage fitting designed to connect a branch pipe into a 110mm drainage system. Manufactured to British Standards, it features double socket push-fit connections for secure installation in foul water and surface water drainage systems.
£14.10 INC VAT
110mm x 45 deg Single Socket Bend
Brett Martin 110mm x 45° Single Socket Bend is a durable PVCu underground drainage fitting designed to change the direction of 110mm drainage pipework. Manufactured to British Standards, it provides a reliable push-fit connection for foul water and surface water drainage systems.
£5.74 INC VAT
110mm x 45 deg Triple Socket Branch
The Brett Martin 110mm x 45° Triple Socket Branch is a PVCu underground drainage fitting designed to introduce a 45° branch into 110mm gravity drainage runs. With triple socket push-fit ends and watertight seal compatibility, it delivers fast, secure connections for foul and surface water systems.
£14.33 INC VAT
110mm x 67 1/2 deg Single Socket Bend
Brett Martin 110mm x 67.5° Single Socket Bend is a durable PVCu underground drainage fitting designed to change the direction of 110mm drainage pipework. Manufactured to British Standards, it provides a reliable push-fit connection for foul water and surface water drainage systems.
£5.74 INC VAT
110mm x 671/2 deg Double Socket Bend
Brett Martin 110mm x 67.5° Double Socket Bend is a durable PVCu underground drainage fitting designed to change the direction of 110mm drainage pipework. Featuring double socket push-fit connections and manufactured to British Standards, it provides a secure and reliable solution for foul water and surface water drainage systems.
£5.98 INC VAT
110mm x 6m Single Socket Pipe
Brett Martin 110mm x 6m Single Socket Pipe is a BSI Kitemarked underground drainage pipe manufactured to BS EN 1401-1. Designed for foul and surface water systems, it features secure push-fit jointing and is produced under an ISO 9001:2015 certified quality management system.
£31.81 INC VAT
110mm x 87 1/2 deg D/S Rest Bend (Long Radius)
Brett Martin 110mm x 87.5° Double Socket Rest Bend (Long Radius) is a durable PVCu underground drainage fitting designed to provide a smooth near-vertical change in direction within 110mm drainage systems. Featuring a long radius design and double socket connections, it ensures improved flow performance and secure push-fit installation.
£12.79 INC VAT
110mm x 87 1/2 deg Double Socket Bend
Brett Martin 110mm x 87.5° Double Socket Bend is a BSI Kitemarked underground drainage fitting manufactured to BS EN 1401-1. Designed for foul and surface water systems, it provides a secure 87.5° directional change with push-fit double socket connections and captive seal technology.
£5.98 INC VAT
110mm x 87 1/2 deg Double Socket Branch
Brett Martin 110mm x 87.5° Double Socket Branch is a durable PVCu underground drainage fitting designed to connect a branch pipe into a 110mm drainage system. Manufactured to British Standards, it features double socket push-fit connections for secure installation in foul water and surface water drainage systems.
£14.10 INC VAT
110mm x 87 1/2 deg Long Radius Plain End Bend
Brett Martin 110mm x 87.5° Long Radius Plain End Bend is a durable PVCu underground drainage fitting designed to create a smooth near-vertical change in direction within 110mm drainage systems. The long radius design improves flow performance while the plain end connections allow flexible installation with compatible couplers or sockets.
£37.72 INC VAT
110mm x 87 1/2 deg Single Socket Bend
Brett Martin 110mm x 87.5° Single Socket Bend is a durable PVCu underground drainage fitting designed to change the direction of 110mm drainage pipework. Manufactured to British Standards, it provides a reliable push-fit connection for foul water and surface water drainage systems.
£5.74 INC VAT
110mm x 87 1/2 deg Triple Socket Branch
Brett Martin 110mm x 87.5° Triple Socket Branch is a durable PVCu underground drainage fitting designed to connect a branch pipe into a 110mm drainage system. Featuring triple socket push-fit connections and manufactured to British Standards, it provides a secure solution for foul water and surface water drainage installations.
£14.33 INC VAT
150mm x 45 deg Double Socket Bend
The Brett Martin 150mm Twinwall 45° Double Socket Bend is a twinwall drainage fitting designed to create a swept 45° change of direction in 150mm twinwall surface water and land drainage systems. With double socket connections, it supports quick installation and secure jointing.
£33.74 INC VAT
150mm x 45 deg Triple Socket Equal Branch
The Brett Martin 150mm Twinwall 45° Triple Socket Equal Branch is a twinwall drainage junction fitting used to create a 45° branch connection in 150mm twinwall surface water and land drainage systems. With triple socket ends, it supports secure connections and efficient routing.
£58.89 INC VAT
150mm x 90 deg Double Socket Bend
The Brett Martin 150mm Twinwall 90° Double Socket Bend is a durable twinwall drainage fitting designed to change direction in 150mm corrugated twinwall surface water and land drainage systems. Featuring double socket connections, it provides a secure, reliable joint for underground drainage installations.
£35.57 INC VAT
160mm Double Socket PVC (BS) Coupler
Brett Martin 160mm Double Socket PVC (BS) Coupler is a durable underground drainage fitting designed to connect two plain-ended 160mm drainage pipes. Manufactured from high-quality PVCu and compliant with British Standards, it provides a secure and watertight joint for foul water and surface water drainage systems.
£14.34 INC VAT
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