What does counter-current regeneration mean in practice?
The regenerant flows in the opposite direction to the direction of operation, reaching first the least exhausted initial zone of the bed.
When does it matter?
A properly designed system can reduce regenerant consumption and improve quality, but requires appropriate hydraulics and distribution.
Which solutions are related to it?
Do not change the regeneration direction of the program without confirming the design of the tank, head and bed arrangement.