Yesterday evening I let out some water using the waist setting since it was pouring down rain. This morning the level looked low compared to how much rain we got. So, I replenished some not thinking much about it. Just now I looked out and the level was a good 5-6" less than 12 hours ago and enough to lose prime in my pump. The pump was still running. So, hopefully it's not toast. Clearly I've got a leak but where and what might have caused it?