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Drainage

Drainage moves surface water away from an area. Drainage products from sump units, gratings, couplings, end caps and much more; Howarth have everything you need to complete your drainage system. 

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    Brett Martin 110mm Double Socket PVC Slip Coupler Terracotta 135 x 135 x 135mm

    Double socket slip coupler suitable for use with Brett Martin's 110mm / 6inch or 160mm / 8inch drain systems. Manufactured in the UK and conform to BS EN 1401. They are incredibly durable, lightweight and easy to install underground drainage coupler,...
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    Brett Martin 110mm Low Trapped Gully Black 300 x 135 x 230mm

    Low trapped gully for use with 110mm drainage system. All Brett Martin products are manufactured under a quality management system certified to BS EN ISO 9001:2015 offering you peace of mind that these products will satisfy current industry and...
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    Brett Martin 110mm Oval Rodding Point Silver 166 x 135 x 135mm

    Oval metal rodding point for inspection of 110mm drainage layouts. All Brett Martin products are manufactured under a quality management system certified to BS EN ISO 9001:2015 offering you peace of mind that these products will satisfy current industry...
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    Brett Martin 110mm PVCu To Standard Clay Adaptor Terracotta 165 x 165 x 135mm

    Brett Martin 110mm PVCu To Standard Clay Adaptor Terracotta 165 x 165 x 135mm is a quick & easy product to Install due to it's lightweight and durable nature. For use with 110m drainage range. All Brett Martin products are manufactured under a quality...
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    Brett Martin 110mm PVCu To Super Clay Adaptor Terracotta 165 x 165 x 135mm

    Brett Martin 110mm PVCu To Super Clay Adaptor Terracotta 165 x 165 x 135mm is a quick & easy product to Install due to it's lightweight and durable nature. For use with 110m drainage range. All Brett Martin products are manufactured under a quality...
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    Brett Martin 110mm Seals Accept MuPVC Waste Terracotta 32mm x 32mm

    Used to connect 32mm and 40mm MuPVC waste pipes to 100mm drain system. This 4 inch PVC drainage to solvent weld waste adapters are manufactured in the UK and conform to BS EN 1401. They are incredibly durable, lightweight and easy to install underground...
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    Brett Martin 110mm Seals Accept MuPVC Waste Terracotta 32mm x 38mm

    Used to connect 32mm and 40mm MuPVC waste pipes to 100mm drain system. This 4 inch PVC drainage to solvent weld waste adapters are manufactured in the UK and conform to BS EN 1401. They are incredibly durable, lightweight and easy to install underground...
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    Brett Martin 110mm Single Socket Pipe Terracotta 110mm x 3m

    3m or 6m length single socket SN8 pipe suitable for 110mm drainage layouts. Our terracotta single socket pipe is ideal for any professional job, quickly & easily to install. Kite marked and manufactured in the UK to BS EN 1401:2019 certification.
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    Brett Martin 110mm Single Socket Pipe Terracotta 110mm x 6m

    3m or 6m length single socket SN8 pipe suitable for 110mm drainage layouts. Our terracotta single socket pipe is ideal for any professional job, quickly & easily to install. Kite marked and manufactured in the UK to BS EN 1401:2019 certification.
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    Brett Martin 110mm Terracotta 180 x 135 x 135mm

    Our comprehensive range of underground products include pipes in up to 13 diameters from 58.9mm to 600mm, industry compliant fittings All Brett Martin products including Brett Martin 110mm Terracotta 180 x 135 x 135mm are manufactured under a quality...
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    Brett Martin 110mm Universal Adaptor Pipe Black/Terracotta 70 x 135 x 135mm

    Brett Martin 110mm Universal Adaptor Pipe Black/Terracotta 70 x 135 x 135mm is a quick & easy product to Install due to it's lightweight and durable nature. Used to connect above ground pipes to 110mm drainage system. All Brett Martin products are...
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    Brett Martin 110mm Universal Adaptor Socket Black/Terracotta 70 x 135 x 135mm

    Brett Martin 110mm Universal Adaptor Socket Black/Terracotta 70 x 135 x 135mm is a quick & easy product to Install due to it's lightweight and durable nature. Used to connect above ground pipes to 110mm drainage system. All Brett Martin products are...
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    Brett Martin 160 x 110mm 45' Double Socket Branch Terracotta 310 x 190 x 340mm

    Double socket branch fitting at 45 degree angle for use where Brett Martin's 110mm drain systems change to 160mm layout. All Brett Martin products are manufactured under a quality management system certified to BS EN ISO 9001:2015 offering you peace of...
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    Brett Martin 160 x 110mm 45' Triple Socket Branch Terracotta 310 x 190 x 340mm

    Triple socket branch fitting at 45 degree angle for use where Brett Martin's 110mm drain systems change to 160mm layout. All Brett Martin products are manufactured under a quality management system certified to BS EN ISO 9001:2015 offering you peace of...
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    Brett Martin 160 x 110mm 87.5' Double Socket Branch Terracotta 310 x 190 x 310mm

    Double socket branch fitting at 87� degree angle for use where Brett Martin's 110mm drain systems change to 160mm layouts. All Brett Martin products are manufactured under a quality management system certified to BS EN ISO 9001:2015 offering you peace of...
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    Brett Martin 160 x 110mm 87.5' Triple Socket Branch Terracotta 310 x 190 x 310mm

    Triple socket branch fitting at 87� degree angle for use where Brett Martin's 110mm drain systems change to 160mm layout. All Brett Martin products are manufactured under a quality management system certified to BS EN ISO 9001:2015 offering you peace of...
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    Brett Martin 160 x 160mm 45' Double Socket Branch Terracotta 370 x 190 x 370mm

    Double socket branch fitting at 45 degree angle for use with Brett Martin's 160mm drain systems. All Brett Martin products are manufactured under a quality management system certified to BS EN ISO 9001:2015 offering you peace of mind that these products...
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    Brett Martin 160 x 160mm 45' Triple Socket Branch Terracotta 370 x 190 x 360mm

    Triple socket branch fitting at 45 degree angle for use with Brett Martin's 160mm drain systems. All Brett Martin products are manufactured under a quality management system certified to BS EN ISO 9001:2015 offering you peace of mind that these products...
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    Brett Martin 160 x 160mm 87.5' Double Socket Branch Terracotta 310 x 190 x 310mm

    Double socket branch fitting at 87� degree angle for use with Brett Martin's 160mm drain systems. All Brett Martin products are manufactured under a quality management system certified to BS EN ISO 9001:2015 offering you peace of mind that these products...
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    Brett Martin 160 x 160mm 87.5' Triple Socket Branch Terracotta 310 x 190 x 310mm

    Triple socket branch fitting at 87� degree angle for use with Brett Martin's 160mm drain systems. All Brett Martin products are manufactured under a quality management system certified to BS EN ISO 9001:2015 offering you peace of mind that these products...
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    Brett Martin 160mm Double Socket PVC (BS) Coupler Terracotta 175 x 190 x 190mm

    Double socket coupler suitable for use with Brett Martin's 110mm or 160mm drain systems. Manufactured in the UK and conform to BS EN 1401. They are incredibly durable, lightweight and easy to install underground drainage coupler, due to their easy...
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    Brett Martin 160mm Double Socket PVC Slip Coupler Terracotta 175 x 190 x 190mm

    Double socket slip coupler suitable for use with Brett Martin's 110mm / 6inch or 160mm / 8inch drain systems. Manufactured in the UK and conform to BS EN 1401. They are incredibly durable, lightweight and easy to install underground drainage coupler,...
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    Brett Martin 160mm Screw Access Cover Terracotta 130 x 190 x 190mm

    Screw access cover for 160mm drainage layouts. All Brett Martin products are manufactured under a quality management system certified to BS EN ISO 9001:2015 offering you peace of mind that these products will satisfy current industry and legislative...
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    Brett Martin 160mm Spare Plug (Chamber) Black 50 x 190 x 190mm

    Spare plug for 160mm outlet on access and inspection chamber. All Brett Martin products are manufactured under a quality management system certified to BS EN ISO 9001:2015 offering you peace of mind that these products will satisfy current industry and...

Drainage

The drainage of rainwater is significantly important when starting a construction project, as without any efficient drainage we would be prone to increased flooding, which could ultimately cause problems for buildings and the land itself.

Howarth Timber & Building Supplies works closely with ACO to provide solutions for surface water control, and our plastic drainage systems are lightweight and easy to use while offering flexibility and strength.

Our rainwater plastic plumbing systems are designed to collect and move rainwater to either allow for harvesting (ideal for watering the garden) or direct it into the main drainage system. This is especially important to do around buildings to prevent damage caused by a build-up of water. 

If you are interested in purchasing any drainage pipes or products, or are just seeking further advice, please contact your local friendly Howarth branch.

How to guides


Residential drainage solutions

Let’s look at the features to consider when installing residential water management solutions…


A Class Apart: Drainage Load Classes

A class apart: all you need to know when it comes to drainage.