With all the work I've done to my freshwater system, I'm a little paranoid. I noticed that when I have my pump on that after it pressurizes the system it shuts off as it should. But then about every 45 seconds, it turns back on for two seconds. I don't know if this is different from before I started the work, or if as I said, I'm paranoid now. I've gone over the system with a magnifying glass and there are no leaks, so I assume the pressure is bleeding off through the pump. How often does your pump cycle when you're not using water? I was considering buying an accumulator tank, but didn't know if they were worth the expense.