Land Drainage Introduction Flashcards
What coil lengths are available for 160mm land drain?
25m, 45m & 50m
What is the smallest diameter land drain JDP provide?
25mm
What is the main BS standard for land drain?
BS 4962
100mm land drain is available in what coil lengths?
25, 50m & 100m
When laying land drain, why would you use a reducer?
To connect different diameters of pipe in a straight line
Name 3 main suppliers of land drain.
Wavin, Naylor, Polypipe
Which land drain is available in 500m coils?
25mm
What is the minimum depth cover for land drain systems?
450mm
Does land drain have a smooth or corrugated bore?
Corrugated
Which supplier only provides BSI KiteMarked land drain?
Wavin
Which land drain is imported into the UK?
25mm land drain
Land drain is commonly used in which industries?
Agriculture and Construction
Early land drains depended on ditches. True or false?
TRUE
Name 3 different plastics in which land drain is available.
PVC, HDPE, PP
For what are the letters HDPE an abbreviation?
High Density Polyethylene
True or false; geotextiles can be used in conjunction with land drain.
TRUE
Why would you use unperforated land drain?
Used mainly in carrier applications
Why would land drain be used on highways?
Used as embankment, verge and central reseveration drainage
When would land drain be used in gardens?
As soakaway drainage in gardens
Unperforated 60mm land coil is available in what lengths?
25m, 50m and 150m
Unperforated 80mm land coil is available in what lengths?
25m, 50m & 100m
Perforated land drain is used for what purpose?
To collect and remove excess surface water and distribute to a suitable collection point.
200m land drain coil is available in what length coils?
40m
Grain Plastics manufacture what diameter land drain?
25mm diameter land drain (in 250m and 500m coils)
