TopDrain
A make of tractor operated surface drainage machine that is manufactured by Imants. There are two models (1000 and 1500) each creating a drainage slit 40mm in width: the machine removes the soil, inserts sand and firms the placed sand, with the operating speed being a maximum of 1.8mph.
• 1000: Working width of 1m, working depth of 15mm - 260mm, 2 cutting discs at a spacing of 1m.
• 1500: Working width of 1.5m, working depth of 15mm - 225mm, 3 cutting discs at a spacing of 0.5m.