I thought about installing something to keep the sand in place, but I hope I do not need it. MOST of the sand is in an area in the middle of the pond that is horizontal so it really should not go anywhere.
For the banks, I took the sand all the way to the bottom of the pond to where it levels out (it is about 7 feet deep to the top of the levy). My thinking is that since there is sand all the way to the bottom (which is horizontal), it should stay in place. The real problem, however, is that I live overseas and I really don't have anybody available at home to install anything to keep it in place. I will go home around the end of July. I am pretty sure that the pond will not be full by then so based on what feedback I get here I can still install something.
