Help me plan under my tank

[kien]

Leave room for a fresh water auto top off reservoir. That is unless you are going to plumb your sump right into a RO/DI unit or something like that. I wouldn't mind doing that except that my tank is on my main floor and my RO/DI unit is in the basement. Anyway, a tank that big will evaporate A LOT of water. Evaporated water will raise your salinity over time because salt does not evaporate. My current 90 gallon tank (48" by 24" by 18") evaporates roughly 7 gallons a week. That's a gallon of fresh water a day almost that I had to manually dump into my sump before I got an auto top off system. Now I just refill my fresh water reservoir every sunday evening. When I did it manually it was easy to forget sometimes, or sometimes life in general gets in the way of tank chores.

K.