Desalination of the water through recirculation. Rinsing water via cation-anion exchange resin.
Advantages
- Avoidance of chalk or cleaner spots on the parts while drying
- Full desalination of the fresh water fed back
Disadvantages
- With excessive oil or tenside loading of the deionized rinsing through delay, pre-screening by tenside catcher resin or active carbon is necessary