11-04-2010, 04:42 AM
I haven't heard of knocking here. On a well in California I had a similar problem and had to add an air chamber to relieve 'water hammer' where when a faucet would be shut off suddenly the pipes would shudder. Did you change the piping? You need at least a foot or two of straight pipe on the pump outlet or the backpressure from an elbow might make it think pressure was up and it would turn off and then right back on. Also, I use a bit of bleach in my tank occasionally and where you have the 5 micron mine would also be carbon to take the chlorine back out as well as some other things.
Jay
Jay
Jay