Question 1

1. What is meant by groundworks?

Accepted Answer

Groundworks refers to all work carried out to prepare sub-surfaces before construction begins. This includes excavation, trenching, foundations, drainage, and installing utilities (such as electricity, gas, water and sewage).

Question 2

2. What is a drainage system?

Accepted Answer

In construction, a drainage system removes surface water, foul water, or both from a site. It can include pipes, manholes, gullies, and channels connected to the mains or soakaways.

Question 3

3. What is foul water drainage?

Accepted Answer

Foul water drainage carries wastewater from toilets, sinks, baths, showers, dishwashers, and washing machines to a public sewer or private treatment system. This system is separate from surface water drainage to prevent contamination. Foul drainage typically includes soil stacks, underground pipework, and inspection chambers.

Question 4

4. What is a sustainable drainage system?

Accepted Answer

A sustainable drainage system (SuDS) is designed to manage surface water runoff in a way that mimics natural drainage. It slows water flow, encourages infiltration, and improves water quality. SuDS features include permeable paving, swales, filter drains, detention basins, and soakaways. These systems reduce flood risk, limit pressure on public sewers, and support compliance with planning requirements.

Question 5

5. What is surface water drainage?

Accepted Answer

Surface water drainage collects rainwater from roofs, roads, and paved areas. It directs water to specialised soakaways, storm drains, or attenuation systems to prevent flooding.

Compare drainage supplies and groundwork solutions

Alumasc Aqualine 150mm x 120mm ModernRunning Outlet 100mm - Anthracite Grey

Alumasc Aqualine 100mm x 85mm Modern Running Outlet 75mm - White

Osma 0T024G Roundline Pipe Connector 68mm (Dia) Grey

Wavin Osma RoundLine Internal Stopend 112mm Black

Osma RoundLine Socket Bracket 68mm Dia Black

Wavin Osma RoundLine pipe or socket bracket 68mm black 0T033B

Osma 0T074W Roundline Gutter 4m x 112mm (L x Dia) White

100mm IKO Hyload Trade DPC Damp Proof Course 20m

100mm IKO Hyload Original DPC Damp Proof Course 20m

IKO Ruberoid Hyload Original DPC | 20m x 100mm

IKO Hyload Original Damp Proof Course 100mm x 20m

IKO Hyload Original Damp Proof Course 100mm x 20m

Half Round Gutter External Stop End 112mm Anthracite

Gutter Deepflow Running Outlet Black

Brett Martin Plastic Guttering Half Round Style 120 Degree Angle 112mm - White

Brett Martin Plastic Guttering Half Round Style 120 Degree Angle 112mm - Black

Cast Iron Half Round Guttering Dropend External 125x65mm Outlet Primed

Alumasc Aqualine 150mm x 75mm Half Round Running Outlet 100mm x 75mm - Black