Throughout the summer it has seemed as though the water level in the pool had gotten low rather frequently. I had never paid much attention before this summer. I thought it was natural. But it turns out that there's a leaky valve. It just lets a little water out at a time, so it's not immediately noticeable. But the next thing you know the water level is down and the filter is just sucking the water in. Then you have to put the hose in the pool to fill up the water.
Oh well, swim-suit season is over for another 9 months. *shudders*