I'm helping a neighbor out with their water softener problem. They moved into their house and found the softener out of salt and brine. They are not sure if it was working or not. I filled the softener with a bag of salt and a couple of gallons of water and then tried a manual regeneration, but nothing happened. I'm trying to figure out the make/model of the unit so that I can get more information on the unit. I've attached a picture. Can anyone help me identify? Thanks! Jack[