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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 Double Socket PVC (BS) Coupler
Brett Martin 110mm Double Socket PVC (BS) Coupler is a durable underground drainage fitting designed to connect two plain-ended 110mm drainage pipes. Manufactured from high-quality PVCu and compliant with British Standards, it provides a secure and reliable joint for foul water and surface water drainage systems.
£2.86 INC VAT
110mm Double Socket PVC Slip Coupler
Brett Martin 110mm Double Socket PVC Slip Coupler is a durable underground drainage fitting designed to connect or repair two lengths of 110mm drainage pipe. Manufactured from high-quality PVCu, it allows easy installation and adjustment during pipe repairs or extensions in foul water and surface water drainage systems.
£9.84 INC VAT
110mm Integral Rectangular Hopper
The Brett Martin 110mm Integral Rectangular Hopper is a practical surface water collection component designed to accept rainwater run-off and connect into underground drainage systems. With an integral hopper body and rectangular top format, it provides a neat, functional inlet for external drainage.
£22.96 INC VAT
110mm Low Level P Trap Gully
The Brett Martin 110mm Low Level P Trap Gully is a compact trapped gully designed for underground drainage connections where installation depth is limited. Featuring a P-trap water seal, it helps prevent odours while managing surface or waste water discharge.
£18.17 INC VAT
110mm Low Trapped Gully
The Brett Martin 110mm Low Trapped Gully is a compact underground drainage gully designed to provide a trapped connection in shallow installation conditions. Suitable for foul and surface water applications, it helps reduce odours while maintaining effective drainage.
£21.80 INC VAT
110mm Oval Rodding Point
The Brett Martin 110mm Oval Rodding Point is an access fitting designed to provide convenient rodding entry into 110mm underground drainage systems. With an oval access profile, it supports efficient maintenance and clearing of blockages in foul and surface water drainage runs.
£35.34 INC VAT
110mm Plug (Temporary)
The Brett Martin 110mm Temporary Plug is a PVCu underground drainage accessory designed for short-term sealing of 110mm pipe or fittings during testing, commissioning or staged installations. It provides a secure fit to prevent debris ingress and maintain site cleanliness.
£4.23 INC VAT
110mm Screw Access Cover
The Brett Martin 110mm Screw Access Cover is a secure access cover designed for 110mm underground drainage rodding and inspection points. Featuring a screw-fit closure, it helps protect access openings while providing easy entry for maintenance when required.
£12.72 INC VAT
110mm Single Socket Level Invert Taper 160mm - 110mm Reducer
The Brett Martin 110mm Level Invert Taper Reducer (160mm–110mm) is a PVCu underground drainage reducer designed to connect 160mm pipework down to 110mm while maintaining a level invert. With a single socket end, it supports efficient flow and reliable jointing in gravity drainage systems.
£20.93 INC VAT
110mm Socket Plug
The Brett Martin 110mm Socket Plug is a PVCu underground drainage accessory designed to blank off a 110mm socket connection securely. Ideal for unused socket outlets, it helps maintain watertight integrity within foul and surface water drainage systems.
£7.93 INC VAT
110mm Spare Plug (Chamber)
The Brett Martin 110mm Spare Plug (Chamber) is a replacement blanking plug designed for compatible inspection chambers and chamber bases. It provides a secure closure for unused 110mm entries, supporting watertight integrity and flexible chamber configuration.
£4.86 INC VAT
110mm Square Hopper Riser
The Brett Martin 110mm Square Hopper Riser is an extension component designed to raise compatible square hopper installations to suit finished surface levels. Ideal for paving and ground level adjustments, it helps achieve a flush, professional finish around external drainage points.
£10.39 INC VAT
110mm x 0deg-30deg Adjustable Double Socket Bend
Brett Martin 110mm 0°–30° Adjustable Double Socket Bend is a durable PVCu underground drainage fitting designed to provide flexible directional changes within 110mm drainage pipe systems. With an adjustable angle range from 0° to 30° and double socket push-fit connections, it offers a practical solution for foul water and surface water drainage installations.
£17.22 INC VAT
110mm x 0deg-90 deg Adjustable Double Socket Bend
Brett Martin 110mm 0°–90° Adjustable Double Socket Bend is a versatile PVCu underground drainage fitting designed to create adjustable pipe direction changes within 110mm drainage systems. Featuring a double socket push-fit design, it allows flexible angle adjustment between 0° and 90° for foul water and surface water drainage installations.
£21.86 INC VAT
110mm x 11 1/4 deg Single Socket Bend
Brett Martin 110mm x 11.25° Single Socket Bend is a durable PVCu underground drainage fitting designed to create a slight directional change in 110mm drainage pipework. Manufactured to British Standards, it provides a secure push-fit connection for foul water and surface water drainage systems.
£5.74 INC VAT
110mm x 111/4 deg Double Socket Bend
Brett Martin 110mm x 11.25° Double Socket Bend is a durable PVCu underground drainage fitting designed to create a slight directional change in 110mm drainage pipework. Manufactured to British Standards, it features double socket push-fit connections for secure installation in foul water and surface water drainage systems.
£5.98 INC VAT
110mm x 111/4 deg Long Radius Plain End Bend
Brett Martin 110mm x 11.25° Long Radius Plain End Bend is a durable PVCu underground drainage fitting designed to create a slight directional change in 110mm drainage pipework. The long radius design improves wastewater flow while plain end connections allow flexible installation using compatible couplers or sockets.
£37.72 INC VAT
110mm x 22 1/2 deg Single Socket Bend
Brett Martin 110mm x 22.5° Single Socket Bend is a durable PVCu underground drainage fitting designed to create a gentle change in direction in 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 22 1/2 deg Double Socket Bend
Brett Martin 110mm x 22.5° Double Socket Bend is a durable PVCu underground drainage fitting designed to provide a gentle change in direction in 110mm drainage pipework. Manufactured to British Standards, it features double socket push-fit connections for secure installation in foul water and surface water drainage systems.
£5.98 INC VAT
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
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