I have a Rayne RXD 1500D System and while I was on vacation the system ran out of salt and now it will not draw the brine water. I cleased out the brine take and check the float valve and everything seems to work properly. I removed the injector screen and cleaned it but it still won't draw the brine water. It fills water in the brine tank so I know the line is not clogged. Could my injector or brine valve be stuck??? Any help would be appreicated.