2-26. BISULFITE SANITIZING CLEANING. (Figure 2-63).
Figure 2-63. Bisulfite Sanitizing
Bisulfite sanitizing cleaning is required as a part of short and long term shutdown to
secured status to prevent bacterial growth within the RO elements. It always immediately
follows detergent cleaning when preparing for long term secured shutdown.
When done in sequence as a part of short and long term secured shutdown, the ROWPU
has been flushed (para. 2-25b). This procedure follows flushing.
Fill Clean/Flush Tank.
Press DISTRIBUTION PUMP ON (1).
Change 12 2-127