Heavy rainfall causes water to rush down the face of the cliffs and pool at the bottom, which has been a near constant frustration for society general manager Harry Andrew, despite Waitaki District Council efforts to address the issue.
A sock that hangs from the top of the cliff in one area was installed by the council about three months ago, which he said had made little difference because of its position.
Sections of track have at times been covered by sediment, which has forced the society to replace rotting wooden sleepers with concrete ones.
"I would like to shift the sock or even put another sock there and that will stop the clay and we will only have to dig it out once and not twice a year."
Last month, eight truckloads of sediment was removed from the area, mostly from between the North Otago Yacht and Power Boat Club and woolstore buildings.
Mr Andrew brought up the issue in a public forum at a recent council meeting.
Waitaki Mayor Gary Kircher said the council would continue to work with the society on the issue.
