| Performance goal: Pre-treatments are operating optimally. |
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| Description: Pre-treatment is maintained in accordance with the manufacturer’s advice. |
| Performance criteria: Pre-treatments are functioning optimally. |
| Minimum requirements |
| The effectiveness of pre-treatment is monitored per manufacturer’s advice or earlier if there is a change in water quality. |
| Conduct maintenance as per the manufacturer’s advice or earlier if there is a change in water quality. |
| Change filters and any other consumables at time intervals recommended by manufacturers. |
| Do not use expired chemicals. |
| Monitor the pH to ensure it is between 6.5 and 8.5 and adjust if necessary. |
| Best practice options |
| Frequency of monitoring, cleaning, and maintenance follows or exceeds the requirements in System monitoring and maintenance. |
| A cleaning and maintenance schedule is developed and enacted. Frequency of monitoring and cleaning is developed for an individual farm based on the specific requirements of their water treatment system. |