yea, my house is 68 to 70 most all year, but the hotter the summer, and the hotter it is outside, the more the ac unit runs, therefore the more mositure it pulls out of the air, and therefore i have more evap, but i'm only loosing about a half a gallon every 12 hours, and even that varies some from day to day..
now that i have the new sump, skimmer, plumbing, and increased flow, i'm expecting to loose more, but when i checked it this morning, it didnt look like i lost any at all all night... the wife looked and said that it was still right on with the "NORMAL LEVEL" labels i put on it last night, and that was at 12 noon today, so, so far(over the last 12+ hours), i havent lost ANY water since the new sump and whatnot.. hmmm that almost worries be as much as loosing more...