Our kenmore 350 is not regenerating,it has brine,but the water in the tube is up to 7&staying,I don't believe the brine is draining correctly.it worked for a few times&now this,already cleaned out vavle&checked float,motor does work.I have regen once already today¬hing&took out filter&replaced again,we do have water flow.I don't have the manual.Need help please.