Yikes! After two days of rain, some of the holes for the support post footing filled with sand again. The holes were 44 inches deep when we left Saturday, and this one was only 34 inches deep when we came back to repair them today. And they all had large sections underground that had washed out and formed holes that will have to be fixed when we put in the posts and concrete. One of the pitfalls of having so much sand. We truly thought that we'd hid clay about 2 feet down, but we found nothing but sand for the 44 inches, which made for easy digging.