Carbonator Brass Pump Saver This brass pump saver is installed on the inlet side of the carbonator brass pump. It’s purpose is to shut down the carbonator temporarily when you have low or no water pressure. It will immediately turn itself back on when at least 20lbs of water supply has returned. This will prevent pump burnouts, flooding and damage to your establishment. The pump saver screws onto the top of the brass threaded tee and your water supply line screws onto the side. Before installing, it is highly recommended to gently tighten the small stainless screws under the pump saver to assure proper tension. Over tighteneing will result in screw stripping.