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| For the successful operation of a reverse-osmosis freshwater generator, why is the high pressure pump required to operate in the 750 to 1200 psig range for a discharge pressure? |
| A) To overcome the pore size of the semi-permeable membrane. |
| B) To successfully force the salt water through the chemical pre-treatment device. |
| C) To overcome the osmotic pressure generated by the difference in solution concentrations. |
| D) To successfully force the salt water through the pre-filter (or pre-filters). |
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