Hi we have a Fleck 5600 its a couple of years old, it seemed to work ok but when it was 6-8 months it started to get water hammer towards end of cycle. The hammer got progressively worse so after reading some I tightened up metal nut on valve line that goes to brine tank then both line nuts that are on the float they were not tight as they should have been that seemed to help but not completely so I tighten them up a little more trying to be careful not to over tighten. Now it worse and it lasts maybe 15 minutes and turning on a faucet won't stop it as it would when this began. I have looked to see if anything is cracked but it all looks ok. I have put this into bypass no water hammer Help ! Thanks