New to this site! Anyhoo I have had my pool for about 3 weeks and ran into some trouble Saturday night when we had about 4 inches of rain in 4-5 hours! THe pool overflowed at the lowest point and eroded the sand away to the point the leg was just free hanging. I was able to block it up for the night and gently lift it back to proper position using some more blocks. It also eroded about 2 feet under the pool where it was cascading down the outside of the liner. SO I thought and actually tested an idea so if this happens when I am not home it will overflow thru some pvc. Here is what I did. I made a few fittings so I can connect to one of the drain plugs on the bottom of the pool. I then brought the pvc up (on the outside of pool) to the level where I want the pool. Now if it rains and the level goes above the pvc it will automaticlly drain out the pvc and away from the pool foundation. The only thing I am worried about is if for some reason that breaks I will come home to an empty pool!