I have my RODI water in a container about 12 feet below my tank and have been using a Bulk Reef Supply 50ml per min dosing pump (rated for 20' head pressure) on a water level sensor to auto top off the tank. The system works great but I have replaced the pump 5 times now as the gears keep stripping out. I am following their recommendations on being on a timer to limit run time. Any recommendations based on experience for a pump that will last longer? Thanks!!