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| If a reverse-osmosis freshwater generating unit has a high salinity alarm associated with the freshwater outlet, what should be done? |
| A) The pre-filters should be serviced by cleaning or replacement. |
| B) The membrane modules should be flushed and cleaned. |
| C) The pre-treatment chemical doser should be serviced. |
| D) The post-treatment sterilizer should be serviced. |
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