The causes to the High TDS are listed in the timeframe that you've owned your RO system. The grey background applies to systems in use for under 3 months and the white background applies to systems in use for more than 3 months.
The causes are listed from the most frequent and probable to the least likeliest.
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Causes
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Identify
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1
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Feed water blocked and Low input pressure |
Make sure all lines to the RO system and within the RO head are not obstructed. Low water results in slightly higher tds |
Untangles the lines and make sure all the feed valves are fully turned on. |
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2
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Wrong membrane direction
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3
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Forgot to insert membrane |
Normally without the membrane, the RO water's ppm is equivalent to the Tap water's ppm. |
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4
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Defective Membrane
(Extremely Rare) |
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5
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Clogged pre-filters
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Clogged pre-filters inadvently lowers the water pressure. Thus cause the tds to escalate. |
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6
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Depleted Membrane
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7
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ASO Clogged
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8
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Check valve clogged
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9
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Tank bladder ruptured
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Water droplets coming out from the tank's pressure valve. Furthermore, a raptured tank tends to very heavy compare to a regular full tank.
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