What does ion-exchange resin cleaning mean in practice?
Ordinary salt regeneration restores ionic form but may not remove foulants blocking functional groups and bed voids.
When does it matter?
A strong oxidant, wrong acid or cationic chemical can permanently damage resin or poison anion resin.
Which solutions are related to it?
Identify the foulant, follow the specified dose and contact time, rinse thoroughly and verify restored capacity.