Select from one of the troubleshoot questions below to see how to resolve the issue.

    1. Not enough water from holding tank
    2. Low water pressure from dispensing faucet
    3. Tastes and odors in product water
    4. Drain water overflows at the air gap faucet
    5. Product water is high in total dissolved solid
    6. Faucet leaks or drips
    7. Little to no water at dispensing faucet
    8. Makes humming noise
    9. Tanks takes long time to fill
    10. System slow to shut off
    11. System does not off

1. Not enough water from holding tank

Cause:
A) Feed water valve is plugged
B) Sediment/Carbon prefilter or carbon post filter is clogged
C) Low incoming water pressure
D) Reverse osmosis membrane is fouled
E) Air pressure in holding tank is incorrect
F) Air bladder in holding tank is ruptured.
G) Holding tank valve is closed
H) No water to drain. Drain flow restrictor is clogged
I) Check valve on RO membrane housing is stuck
J) The automatic shut-off valve is malfunctioning
Correction:
A) Open valve or unclog the valve
B) Replace the filters
C) Incoming water pressure must be above the recommended psi level. Install a booster pump or permeate pump if water pressure is lower than the recommended level
D) Make sure incoming water pressure is within operating limits. Make sure drain line si not clogged and replace the membrane
E) Empty water from holding tank. Air pressure in valve stem should be between 5-10 psi
F) Replace the holding tank
G) Open valve
H) Replace the drain flow restrictor
I) Replace the check valve
J) Replace automatic shut-off valve

 

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2. Low water pressure from dispensing faucet

Cause:
A) Air pressure in holding tank is incorrect. This is the #1 reason for low flow from reverse osmosis system.
B) carbon post filter is clogged
C) Holding tank valve is partially closed
D) The faucet is out of adjustment of faulty.
E) Heavy water use. Holding tank is empty.
F) Low water production
Correction:
A) Open faucet and empty water from holding tank. Shut off feed water to system and remove holding tank from under sink. Locate the air valve stem and add air. If there’s still water in the tank, continue to add air until all the water is removed. once all the water is removed, continue to add air and pressurize to 8 psi. Re-install the tank under teh sink, turn on the feed water supply to the systm and allow the tank to fill.
B) Replace post filter.
C) Open tank vall valve fully.
D) Repair or replace the faucet
E) Allow holding tank to refill for about an hour or so before using the water.
F) See “Not enough water from holding tank” for troubleshoot.

 

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3. Taste and odors in product water

Cause:
A) Carbon post filter is exhausted
B) There is foreign matter in holding tank
C) Product water and drain water lines are reversed
D) Dissolved gases in feed water
E) Increase in product water TDS
Correction:
A) Replace the filters
B) Clean, flush and sanitize the holding tank. Replace filters.
C) Correct plumbing
D) Pre-treat feed water to remove gases
E) See “Product water is high in total dissolved solids” for troubleshoot

 

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4. Drain water overflows at the air gap faucet

Cause:
A) Air gap is clogged
B) Drain line is clogged
C) Drain flow rate is too high
Correction:
A) Clear Air Gap
B) Clear Tubing
C) Replace flow restrictor

 

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5. Product water is high in total dissolved solids (TDSe

Cause:
A) Clogged prefilters
B) Low Incoming water pressure
C) Reverse osmosis membrane is not correctly sealed in membrane housing
D) Reverse osmosis membrane is expanded
E) Product water and drain water line are reversed
F) No water to drain. Drain flow restrictor is clogged.
G) No water to drain. Air Gap faucet is clogged.
H) The automatic shut-off is not closing
I) New carbon postfilter has not been rinsed completely
J) The incoming feed water TDS has increased
Correction:
A) Replace Filter
B) Incoming water pressure must be above 40 psi. Install a booster pump or permeate pump
C) Check that RO membrane is correctly installed
D) If membrane life is unusually short, check the TDS level of incoming water to see if it exceed the range of recommended operating condition. Pre-treatment may be needed if the incoming TDS level is too high. An average life os membrane should be around 2 - 3 years. Replace the RO membrane
E) Check the connection and correct plumbing
F) Replace drain flow restrictor
G) Clear or replace air gap faucet
H) Repair or replace automatic shut-off valve
I) Drain holding tank twice to rince new carbon postfilter
J) An increase in feed water TDS wil also give an increase in product water TDS

 

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6. Faucet leaks or drips

Cause:
A) Water leaks from faucet spouts
B) Water leaks from beneath the handleh
Correction:
A) 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.
B) Repair or replace the faucet

 

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7. Little to no water at dispensing faucet

Cause:
A) Water is shut off at stop valve
B) Flowlok is set to off position
C) Output line is crimped
D) Tank is not pre-charged
E) Tank is defective or does not hold pressure
F) Tank is not filled with water yet
G) Insufficient water pressure
H) Incorrect installation
Correction:
A) Open main stop valve.
B) Make sure Flowlok main lever is in open position. lever should be lowered.
C) Reroute the line so they are not restricting the water from existing the faucet.
D) Empty out the tank and recharge the tank pressure
E) Replace the tank
F) Allow holding tank to refill for about an hour or so before using the water.
G) Incoming water pressure must be above 40 psi. Install a booster pump or permeate pump
H) Check the installation guide and make sure all the steps are installed properly

 

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8. System makes humming noise

Cause:
A) Air bubble trapped inside the housing
Correction:
A) Purge the air by tilting the system on one side, shut off the tank ball valve and turn on the dispensing faucet for about 1 minute. Repeat 3 or 4 time to purge out all the air

 

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9. Tank takes a long time to fill

Cause:
A) Insufficient water pressure
B) Lower water temperature
Correction:
A) Incoming water pressure must be above 40 psi. Install a booster pump or permeate pump
B) Cold water affects the performance of system. Intall a booster pump or permeate pump to compensate for lower water temperature

 

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10. System slow to shut off

Cause:
A) Insufficient water pressure for system to shut off
B) Feed water valve is not open fully
C) Sediment/Carbon prefilter is clogged
Correction:
A) Incoming water pressure must be above 40 psi. Install a booster pump or permeate pump
B) Open feed water valve fully to lessen the restricted flow
C) Replace the filter

 

 

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11. System does not shut off

Cause:
A) Automatic shut-off valve is defective
B) Automatic shut-off valve is not defective and incoming water pressure is too low
C) System is feeding multiple outlets or an outlet that demands water constantly
Correction:
A) Test the functionality of automatic shut-off valve by closing the tank ball valve to see if the system will shut off. If the system continues producing water, the automatic shut-off valve is defective and needs to be replaced.
B) Incoming water pressure must be above 40 psi. Install a booster pump or permeate pump.
C) It is normal in this situation as system needs to constantly produce water to supply the multiple outlets.

 

 

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