Drainage Supplies, Pipe & Connectors

Construction Materials (CML) stocks a full range of land drainage pipe, pipe connectors, and underground drainage products, which can be delivered to your door within 48 hours upon receipt of your order.

These include:

Land Drainage Pipe

Plastic pipes and drain pipes for all underground drainage fittings.

  • 60mm Drainage Pipe
  • 80mm Drainage Pipe
  • 100mm Drainage Pipe
  • 150mm Drainage Pipe
  • Up to 300mm and available in standard and perforated

Pipe Connectors and Sockets

  • Y Junctions
  • Multi Junctions
  • Reducers
  • Couplers
  • End caps
  • M.D.P.E.
  • Geo-textiles
  • Barrier Fencing
  • Flex-Seal Couplings

Drainage Stone

CML stocks a full range of shingles Gravels, aggregates.


CML Land Drainage

CML has a full range of drainage supplies which includes Lytag, 2mm grit rounded and angular shingle. We also produce a USGA specification Yellow Stone Grit which conforms to a 2mm-4mm specification.


Lytag Granular Material

CML supplies the complete range of Lytag. The basic raw material for Lytag is PFA, a by-product of coal burning. PFA is first palletised and then sintered at 1250° in order to produce rounded pellets.

Lytag is an ideal medium for land drainage applications. Its rounded shape and regular grading give excellent hydraulic conductivity. It is used in the construction of golf course greens and is frequently used in stilt trenching. It may also be used for:

Sports Fields - Lytag is excellent for both open trenching and stilting. 4-8mm aggregate can also be used for trench fill around bowling greens.

Sportag for Play Areas - Special grades of Lytag are available for children′s play areas and artificial sports surfaces. CML Recommend a Spread Rate of mm/sec 1.6 x 10


USGA Specification Yellow Stone Grit 5mm -2mm

Yellow Stone Grit is a good quality drainage material, making it an excellent and effective choice for under turf and other drainage applications. Yellow Stone Grit has less volume but is more competitively priced than Lytag.