RO-PUMP - High TDS

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.

 
Causes
Identify
Solution
1
Feed water blocked

Make sure all lines to the RO system and within the RO head are not obstructed

Make sure all valves are fully turned on

Untangles the lines
2
Input pressure too low
If your home pressure is within the model's regulation. Make sure you have the right model.
Make sure all the feed valves are fully turned on or exchange for the appropriate model
3
Wrong membrane direction
4

 

Forgot to insert membrane

 

TDS test

Normally without the membrane, the RO water's ppm is equivalent to the Tap water's ppm.

5

 

Defective Membrane

(Extremely Rare)

5
Clogged pre-filters

Flow rate test

Clogged pre-filters inadvently lowers the water pressure. Thus cause the tds to escalate.

6
Depleted Membrane
7
Tank bladder ruptured
Raptured tank tends to be heavier compared to a regular full tank and also with water leaking from the pressure valve.
8

Check valve clogged

(Very Rare)

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