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Photo 10: The membrane is then slowly and gently seated in the housing to avoid damage to the O rings.
Photo 11: The housing is then capped and tightened with a wrench. The cap is on the feed water end of the housing.
Photo 12: The membrane housing is attached to the mounting bracket with the previously attached clips.
Photo 13: One of the cheapest but most important parts of the RO unit is the flow restrictor. Without it, the unit doesn't work. The flow restrictor provides the pressure that makes the unit work. Flow restrictors are precision calibrated to allow only a certain amount of water to pass in a set time period. If improper sizes are used, the unit will not have enough pressure to push water through the membrane or will not have enough waste water flow to keep the membrane clean of contaminants.
On my RO units, the flow restrictor is incorporated as part of a flush valve assembly. Flushing the membrane regularly is critical for proper membrane operation.
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