Brine tank flooding Kinetico

[NavySuit]

I have a Kinetico water softener and the brine tank is flooding. The first time I caught it. I was able to manually open and close the float. I reinstalled it and the next day the hose at the float became disconnected. Is there anything I can do to keep it from sticking open?

Also, I have a spare float, but I do not know how to disconnect the hose. How to you disconnect this type of connector (pics below)?

 

[Bannerman]

Those are quick connect fittings. To disconnect, push and hold the Beige collar forward toward the Black connector body, then pull the tubing outward.