Mine was last Monday... I came downstairs to the sucking sounds of my return pump. When I walked over to check it out my feet were soaked. Thankfully had my phone in my hand and turned everything off with the Apex. I, in trying to squish everything into my sump, had put a nano reactor in my skimmer chamber, kind of balancing them together. Skimmer tipped a slight bit, but just enough to overflow and then empty the ATO reservior and then the return chamber. Thankfully, I had emptied the skimmer the night before and my ATO vessel only had about 4 gallons in it, my salinity only dropped a small amount, but my alk took a tumble and I lost a chalice that has not been looking great. Also in a rental, hope the hardwoods flatten out again before the lease is up next year. :( I kept saying I was going to buy the LDK module but kept spending the money on the pretty things...I did order it that day.
After all that, I feel your pain, and often wonder how I managed to keep 2 children alive to adulthood with all the bone-headed mistakes I have made with my tank.