My previous top off setup consisted of an Oceanus Systems Atlas top off with dual solenoids and triple float sensors in the sump. One shuts off top off circuit if sump level gets too high, one maintains proper level, and one shuts off return pump if water gets too low. So, water came from the house water line, into RO/DI and Atlas top off and into sump. Nice and neat. No resevoir. I was told by several people not to do this, because if the sutoff sensor fails, water would just keep on running, floooding the sump and dramaticlly lowering ph. Not Good. I felt good about my setup though due to the redundant solenoids and backup floats. No problems. Now the top off broke -alarm won't reset to allow water flow - and the company is no longer in business?-confused So now I need some ideas. My setup evaporates about 5 gallons a day, and I want to avoid having to manually fill a resevoir (my old 20 gallon tank/resvoir needed refilling every four days - and I sometimes have 5 day long trips - so.... WHat are my options now?