Towed Boat Liner

As a low-cost and practical option for concrete lining watercourse-size canals, a Subgrade Guided Towed Boat Liner can be used. The towed boat takes its grade and alignment (steering) reference from the trimmed canal subgrade prepared by the trapezoidal trencher. Because the towed boat traces the trimmed grade a towed boat liner is very effective for keeping concrete losses to the absolute minimum.