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2. When the machine filters water, the TDS value in the feed water tank is
always changing.
When the machine filters water, the recycled concentrated water continuously enters
the feed water tank and the TDS value of the concentrated water is changing,
resulting in continual changes in the TDS value after the concentrated water is mixed
with the raw water. The TDS value will tend to be stable after filtration.
3. The TDS value of the purified water is high.
When working properly, the system will provide a 90%+ TDS rejection rate (tested
under standard laboratory conditions). If the TDS reading is high, the following are
the possible causes.
a. The new filters haven't been flushed thoroughly. Refer to the instructions to flush
them correctly.
b. The RO membrane filter has expired. Replace the RO membrane filter immediately.
c. The source water in the tank may have a high TDS. Test the source water in the tank
and the filtered water. The filtered water’s TDS should be about 5%-10% of your
source water’s TDS. This is a normal range. If the source water has high TDS, it may
reduce the service life of the system. When the filtered water’s TDS creeps up to
15%-20% of the source water’s TDS, please perform routine filter replacement.
4. The TDS value of the purified water is not stable.
The TDS value of purified water is positively correlated with the TDS value of the feed
water, which is generally 5%-10% of feed water. Feed water with an unstable TDS
value will lead to purified water that has an unstable TDS value.
a. The TDS value of tap water may change based on the water source.
b. The TDS value of the feed water tank is not stable. As this system works with the
function of “Concentrated Water Return and Reuse”, with the concentrated water
flowing back to the feed water tank, it will influence the TDS of the purified water.
5. The water has a peculiar smell.
a. The new system is not fully flushed and can be used after flushing according to the
instructions for the first installation.
b. If the system has not been used for a while, follow the emptying mode prompt to
flush.
c. If the filter is not replaced in time, please replace the filter immediately.
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