Sitting here waiting for my RODI system to make another 10 gallons of water so I can do a water change next week too. I've learned my lesson and now don't do anything while the system is filling my makeup sump ... got distracted once and ended up putting about 15 gallons on my bedroom floor. Luckily, it was very pure water and after vacuuming the carpet with the shop vac, and drying it with a warm fan, all seems to be fine. Now I don't do anything that takes me more than the Kuerig away from the system while in operation. I've become anal about doing this early Sunday morning ... since I never sleep past 4am anymore, and no one else is awake, it is the perfect time to do tank maintenance. Actual maintenance on the tank takes about an hour, but making the water for the next weeks water change takes about 3 hours ...