We purchased our home in December and I am finally feeling like I have a handle in pool maintenance thanks to these forums. My only problem is that for the 3rd time this year I have turned the fill on in my pool and then forgotten it and flooded the pool and yard. Of course this only happens when I FINALLY get the chems balanced. Anyway, I don't fill from a hose as my equipment has a fill button that fills the pool at one of skimmers. I know that if I use a hose there are devices that will detect the water level and turn it on and off. I am wondering if there is a similar device for a pool that has a built-in fill feature that my pool could be retrofit with? If so, who makes them and how much can I expect to spend on it?