We capped Twisted Due with indigenous sand that we dug up but wouldn't do it again. Our costs were minimal compared to bringing it in and doing all the work associated. This being said it was probably a waste of time for many of the reasons given by others . As usual , I'm all in with Mahaffey as usual , he's so smart about all things drainage.
Best to all , happy thanksgiving
Indeed Dr. Mahaffey has a Ph.D. in the dark arts of drainage.