I just installed a new csv1a kit with a grunfos sqe15 pump. I was having trouble with the valve not keeping a constant 50 psi, it would slowly creep past and just keep going . I adjusted it down and it is much better now but I was curious of what psi I should run in the tank? Also the pressure switch seems to have a huge dead band , maybe 30 psi. I'm wondering if I have all the pressures and settings correct.