123Filter iSpring Reverse Osmosis Water Filtration Installation Instructions & Owner's Manual page 27

High TDS level in RO water
The RO system should produce a TDS rejection rate of about 85­95%. If it is not, check the following:
How long have you had the current filters installed for? Check the filter change times to make
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sure no filters (especially the membrane) are expiring and causing the TDS increase.
What is tap water TDS reading? Is there a sudden increase in tap water TDS level?
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Has the RO membrane been installed into the membrane housing? It is a long blue filter packed
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in a vacuum sealed plastic bag, and located in the accessories box.
Are the drain and pure RO water lines reversed? Compare your tubing connections to the
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diagram on the manual to double check.
The automatic shut­off valve (ASOV) could be getting stuck open and mixing the tap and pure
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RO water. This is typically, but not always, accompanied by continous drain water.
Tastes and Odors in Product Water
Possible Cause
Carbon Post Filter is exhausted.
There is foreign matter in Holding Tank.
Product water and Drain water lines are reversed. Correct plumbing.
Dissolved gases in feed water.
Increase in Product Water TDS.
Faucet Leaks or Drips
Adjust the faucet by turning the tee bar located under the handle to provide a small amount of free play
in the handle when shut off. Should this not work, repair or replace the faucet.
Cloudy Water and Ice Cubes
If you just installed the system, you are very likely seeing many tiny air bubbles in the water. During
the first week or two after installing the system or changing filters, the system will be clearing itself of
every nook and cranny of trapped air.
After installation, the water out of the RO faucet is only a trickle
Reverse osmosis is a very slow process. The pressurized tank is included so the RO water can be
produced over a couple hours, and then be readily available when you open the RO faucet. After
installation, you will need to let the tank fill for 1.5­2 hours before seeing a steady stream from the
faucet.
Sudden drop in RO water production
There are a few potential factors causing the problem.
Feed water valve is plugged or closed.
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Sediment/Carbon prefilters or Post Carbon Filter is clogged.
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Replace Filter.
Clean, flush and sanitize the Holding Tank.. Replace filters.
Pre­treat feed water to remove gasses.
See High TDS in Product Water Section
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