I am new to pools and not certain how quickly water should evaporate, but I filled my pool last night and after clearing the whirly-birds out of the skimmer, I circulated the pool over night. I know it is kind of pointless since I have 0 FC in it, but I planned on starting a hardcore shock process and I guess mostly, I have just been struggling and spinning my wheels on this pool. anyway, I filled the pool a little high (as I have been doing for the past few fill ups) so I have excess water for back washing. I left the pool circulating last night and when I came out this morning, the skimmer was sucking empty because the water was too low. Wouldn't I notice where this water was going if it was leaking?