This fountain is poorly designed.  We had to fill up the water every 2 days with about 1 gallon of water.  This is way too much to be evaporation, plus our weather was only in the 60's at this time.  We think the rim of the one of the pots was designed poorly and water was running off.  We tried to use shims to properly balance to prevent any water run off.  This didn't work either.  Then after several months of filling up the water every 2 days, the pump stopped working entirely.  This fountain is beautiful, but poorly designed and only functioned for maybe 3 months. What a waste of money, plus all the time we spent trying to fix problems!