Looking for a safety Cover for our in ground pool. Any suggestions....there are soooo many. Also, we have a kidney shape and I was wondering if it would be safe rather than getting a custom fit to use a rectangle or oval to cover it...thoughts. My only problem is that all I am seeing come to fit a 20 x 40 pool. Ours is actually 22 in the widest part of the kidney and 40 long. We would need an oval or rectangle to fit a 22 x 40 so measuring 24 x 42...not sure if that exists in a standard cover. We may have no choice but to get a custom fit....expensive