Flowchart description

1. Add system cleaner (a) and fungicide (b) to the existing fluid and circulate for time (c) ensuring that all fluid pipes are open.
2. Empty the fluid/cleaner/fungicide mixture and manually clean out liquid and swarf using brushes, scrapers etc.
3. Spray wash the visible areas of the system using a high-pressure jet.
4. Clean all hose connections, filters, splash screens and tramp oil separators.
5. Refill with system cleaner (d) and fungicide (e) in warm water and circulate for time (f).
6. Empty the machine and sump and rinse with dilute water-mix fluid.
7. Empty the machine and fill with new water-mix fluid at the supplier’s recommended concentration.
8. Put the machine back into operation and test the fluid for bacteriological contamination using a dip slide (link to MW5).
9. Carry on using the machine if the dip slide indicates good control of bacteria. Repeat the cleaning process if the dip slide indicates poor or reasonable control.