Have a kenmore ultrasoft 180 and it's making a noise like running water. There r no leaks but after few days the water softener tank is like half full of water so I unplugged softener and running water sound stopped. Can anyone tell me what this might be or how to fix it. Everything was working fine and there was salt in it, so I'm not sure why it started doing it. We did have a ton of rain few days before but I don't think that would have anything to do with it. Thanks