I have not switched over to the BBB method yet but I am planning to after I finish reading and completely understand it. My new home has a 12,000 gallon (aprox) pool and it has a Rainbow Lifeguard Chlorine feeder. With the using bleach for chlorine how often are you adding it during swimming season? I don't mind adding it daily if necessary but what do you do when you are away for a week or so?