i came in to a pool of water last night after me tube from my air pump must of disconnected and water started flowing out the tank, i was out all day and came back to half my 120 gal emptied im glad i came back in time othawise you know what would of happend. me electric was also off after it flooded a scart lead which also was lucky not to start a fire. just warning people to keep there air tubes tightley on there airpump lol.