Curve Back General Purpose Headwall
Pipe sizes: Up to 150mm
Approximate weight: 18kg
This unit is designed to be used where the drain run enters the water course at an angle. The pipe openings are formed where required by use of a masonry disc cutter and opening the hole up to the desired diameter.
Dig out sufficiently to allow the headwall flanges to finish flush with the batter. Take the outfall pipe (minimum length 1.5m of rigid impervious pipe) and slide it though the headwall so that it protrudes approximately 50mm. Make a good connection with the land drain and seal by returning approximately 150mm of soil into the trench and consolidating. Unravel the string and draw the anchor back along the trench as the rest of the backfilling is completed.