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The Dometic RO |
A conventional RO |
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Compact! |
A lot of dead volume due to storage tank and several filters. |
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Direct flow - no stagnant water - No foul taste - Nice, low temperature - No bacteria - Does not run dry |
Storage tank for water is necessary - Rubber bladder tank - Taste, high temperature and risk for bacteria - An empty tank will require a long time to refill. |
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No post-carbon filter |
Post-carbon filter is necessary - Reduces taste from tank - Increases size and maintenance cost |
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Unique RO water purifiers |
Standard drip-drop systems are a commodity. |
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High recovery thanks to: - High working pressure - Efficient re-circulation |
Low recovery due to: - Counter pressure from storage tank - No re-circulation |
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High rejection - High working pressure - Efficient re-circulation |
Low rejection - Low working pressure - Counter pressure from tank - No re-circulation |
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Long membrane life |
Short membrane life - Scaling, fouling - Blockage (due to low re-circulation) |
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Automatic safety system |
Usually no safety system, - Sometimes the TDS-level is indicated - Difficult to ensure tank water quality |