Softener leaking resin

[SamerAdra]

I've had a few problems with my water softener (Fleck 5600SXT, installed it over 4 years ago).
First, the salt level has not been going down.
There is also some corrosion.
And the worst thing is it has leaked large amounts of what I think is resin (blue/green sludge with a sandy/salty consistency) into my water supply.
Of course I have bypassed the softener now.
I could just buy a whole new system, but I want to see what others think before doing that, in case some components are saveable.
Also be interesting to hear any ideas about what might have happened.

Thanks,
Samer

 

[TomFOhio]

The salt in the tank could be bridged over. Carefully take a broom handle and poke it through the salt and
see if it drops down or not. Not sure about the resin problem. Sounds like something let loose inside.

 

[SamerAdra]

Thanks. I tried that but it was salt all the way down, no drop.

 

[House Doc]

Is there any chance of it being installed backwards? There should be arrows or "in/out".