Hey everyone, its obvious that my husband and I dont know what we are doing. We know the sand filter probably needed the sand changed out of it so we watched a YouTube on how to do that. Sadly, we did not watch it til the end for some reason, but anyways, we cleaned the filter, bought new sand, got the sand in there, and turned the filter on. From what I have now read is that you are supposed to fill it half up with water before adding the sand. It seems to be working, but should we start all over and add the water this time?