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Pentair PRF-RO Installation And Maintenance Manual page 5

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2 - THE BASIC REVERSE OSMOSIS SYSTEM
Your reverse osmosis system is a water treatment unit. It uses water pressure to reverse a natural physical
process called osmosis. Water, under pressure, is forced through a semi-permeable membrane to filter out
minerals and impurities. Treated drinking water goes to the faucet. Minerals and impurities are sent to the drain
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with RO waste water.
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The system includes replaceable filters and membrane elements. The prefilter reduces sand, silt, dirt, rust
particles, other sediments, and chlorine from the water supply before they enter the RO membrane elements. The
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postfilter reduces any tastes and/or odours that may remain in the water after passing through the RO membrane
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elements.
Before installing the RO system
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• Best performance of the system will be achieved when the incoming water has been treated (softened).
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• The water coming into the system must be within certain limits for sediments, pressure, etc. Refer to the
specifications to determine if your installation is within the limits.
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• A water quality analysis can be performed to determine if incoming water requires any treatment. Contact your
dealer/ installer.
• The filters and membrane elements in the RO system need to be replaced on a regular basis. Follow the
instructions for replacement that are in this manual.
NOTE: For optimal system performance, use the system for at least 2 minutes continuously each day.
WARNING:
Tools and materials required
• Adjustable wrench, and larger adjustable jaw pliers or pipe wrench to fit sink
drain
• Saw for cutting drain pipe
• Slotted and Phillips head screwdrivers
• Tubing cutters
• Electric drill and bits for cutting the faucet mounting hole
NOTE: Note that some sinks will have a pre-drilled hole with a plug for the faucet.
The RO system is designed to work without the aid of a pressurized storage tank. Installation of a
pressurized storage tank will negatively affect system performance.
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