Looks awesome! Be sure to drill some vent holes to let trapped air out between the smooth wall and corrugations. Couldn't you secure it by driving a couple side lengths of PVC sections into the clay? Driven in at angles should stop lift. You could also use a union on the as a stop for the anchor length to keep the assembly from lifting off the anchor pipes...?
Last edited by Rainman; 04/04/16 11:16 AM.
