Hi there! I tried to look for an answer on this and decided to just ask. I got my k-2006 test kit today and was eager to check my levels. I have an in ground pool. It is rectangular ( except for stairs going in) and has rounded corners. It occurred to me that that might impact the volume. Does it, or is it negligible? Is just taking the length and width at the longest points acceptable or do I need to account for the corners as well? I don't know why I'm so anxious about this, I think I just want to do it right and not start off with an incorrect measurement. Thanks!