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Undersink Stainless-steel
Multistage Ultra Filtration System
Instruction Manual
1
System Model No.: WD-TST-UF
Operating temperature
Working pressure
Flow rate
Feed water requirement
Filtration accuracy
Filter capacity
40-100℉ (5 - 38℃)
15-87psi/0.1-0.6MPa
1.5gpm (tested under 60psi)
Municipal tap water
0.01μm
First P1 lter: Up to 6-8 months
Second U2 lter: Up to 12 months
Third C3 lter: Up to 12-24 months
Specifications
Product Overview
3/8‘’ Inlet hose
Cartridge
3/8“-1/2” Converter
Fastening ring
Bracket
3/8‘’ Outlet hose
Wrench
Teflon tape
Filter housing
Note: The service life mentioned above is subject to chlorine reduction. Actual result varies according
to the local water quality.
Precautions
• Please wear a pair of gloves when installing to avoid scratching your hand.
• Do not use it with water that is microbiologically unsafe or of unknown quality without adequate
disinfection.
• For use only with cold water.
• The system can not be used in freezing environment. Please empty the water in the housing in advance to
prevent the lter cartridge from cracking.
• Do not allow children under 3 years old to have access to small parts during installation of this product.
• This installation must comply with all applicable state and local regulations.
• Turn o the water supply while replacing the lter.
1
Installation of the Filter System
Step 1: Connect to the feed water adapter (cold water only)
1. If the angle valve outlet is 3/8”, inlet hose can be directly connected to the water supply. (Figure 1)
2. If the angle valve outlet is 1/2”, connect it with a No.1 converter at rst. (Figure 2)
Step 2: Connect to the faucet
1. If the faucet hose is 3/8”, outlet hose can be directly connected to the water supply. (Figure 3)
2. If the faucet hose is 1/2”, connect it with a No.2 converter at rst. (Figure 4)
Note: If the original faucet is equipped with a male connector, resulting in disconnetion, please
contact our customer services.
Shut off the water supply
Remove the faucet hose
Figure 1
3/8” outlet
Figure 2
Connect
①
to the cold supply valve
1/2” outlet
①
Figure 3 Figure 4
Faucet hose
Outlet hose
②
Faucet hose
2
Step 3: Connect the hoses
1. Install the inlet water hose
Connect the inlet water hose from the feed water adapter to the “IN” LOGO port and pop the lock clip
on the tting;
2. Install the outlet water hose
Connect the outlet water hose from the faucet to the “OUT” LOGO port and pop the lock clip on the
tting;
Step 4: Check the leaks and flush the filter
Turn on the cold water supply valve. Check if there’s water leakage at connectors, components, valve
or any connecting position. Then turn on the faucet. It may dispense muddy or black water at the
beginning. Please ush for 10 minutes continuously.
Note: The water is not drinkable until ushing for 10 minutes.
If water leakage occurs, turn o the water supply. If the water leakage is at position
1
or
2
, wrap Teon
tape on the external thread. If the water leakage is at position
3
or
4
, insert the quick-connect tting
to the end.
Inlet Outlet
Inlet Hose
Outlet Hose
ColdHot
Filter system
Faucet hose
1
2
3 4
3
To disconnect
Use your thumb and index nger to press down on the lock sleeve. Use your other hand to pull out the
hose from the tting.
Note: Please do not pull out the tubing directly, or else it will damage the tting and cause leakage.
Step 5: Fix the system
The main system can stand on the sink cabinet. If you prefer to mount the system on the wall, follow
the steps below: Firstly you should drill two holes on the wall of cabinet and insert two screws in the
hole. Then hang the lter on screws. It is highly recommended to place the supports under the base of
each of the three housings. The presence of the supports under the housings is necessary because
they take the weight of the water o the housing threads. This ensures the thread doesn’t become
weak over the years.
Cartridge Change Instructions
Your system requires to be cleaned after a considerable period of use. If the ow rate is signicantly
reduced or if the water has a peculiar smell, it is time to replace the lter.
Press
Pull
Press
Loose
Step 1: Remove the cartridge
Turn o the water supply to the system. Open faucet
to release the pressure and allow the water drain.
Insert a piece of towel right under the machine before
pulling the lock clip from the tting. You can now
withdraw the inlet and outlet tubing by pulling it out.
Take the system out of the cabinet and use a lter
wrench (included in the box) to unscrew the fastening
ring. Hold the system with one hand and pull o the
cartridge with another hand. Remove and discard the
old lter cartridge.
Step 2: Install the new cartridge
While holding the system with one hand, insert the cartridge into the head with the other hand. It is
set when the two black sealing rings are fully inserted and the cartridge reaches the end.
Press the housing hard into the system. Once it is in place, screw the fastening ring counterclockwise
with a wrench. Insert the quick-connect tubing into the machine, port and pop the lock clip on the tting.
Note: Please replace the lter according to the label on the cartridge. The order of three lters cannot
be reversed or rearranged.
C3U2P1
4
Note: The service life mentioned above is subject to chlorine reduction. Actual result varies according
to the local water quality.
Precautions
• Please wear a pair of gloves when installing to avoid scratching your hand.
• Do not use it with water that is microbiologically unsafe or of unknown quality without adequate
disinfection.
• For use only with cold water.
• The system can not be used in freezing environment. Please empty the water in the housing in advance to
prevent the lter cartridge from cracking.
• Do not allow children under 3 years old to have access to small parts during installation of this product.
• This installation must comply with all applicable state and local regulations.
• Turn o the water supply while replacing the lter.
Step 3: Flush the system
Turn on the cold water supply valve and check if there’s water leakage. Then turn on the faucet. It
may dispense muddy or black water at the beginning. Please ush for 10 minutes continuously.
Frequently Asked Questions
Q: What should I do if water leaks after installation?
A: In the event of water leakage, turn o the water supply. If the water leakage is occurring at the
water adapter, wrap Teon tape on the external thread. If the water leakage is occurring at the quick
connection position, insert the quick-connect tting to the end and make sure the hoses hit the
bottom of the tting. if there is water leakage at the screw thread of the housing, unscrew the
fastening ring, re-install housing and tighten it with a wrench. Contact us for solutions if the water
leakage persists.
Q: Why doesn't the TDS value lower after filtration?
A: The main purpose of this Waterdrop lter is not to remove TDS. TDS stands for total dissolved solids,
and it is basically composed of inorganic salts and a small amount of organic matter. The lter can
remove harmful substances while keeping benecial trace elements. Please choose Waterdrop RO
system if you are looking for physical removal of TDS.
Q: When should I replace the cartridge?
A: The lter's service life is related to the water quality. If the ow rate is signicantly reduced or if the
water has a peculiar smell, we suggest that you replace the cartridge.
Q:What substances can the filter reduce?
It can eectively reduce chlorine, taste and odor, bacteria, rust, sand and other harmful substances.
Q: Why does water flow slow down after replacement?
A: The three lters are installed in the wrong order.
B: The inlet and outlet tubing are connected wrongly. Please refer to the inlet and outlet mark to x
the problem.
3-year quality assurance
All mechanical devices with moving parts have a normal life span and will need to be replaced
periodically. For this reason, mechanical devices such as lter housing and bracket have a limited
replacement assurance of 3 years. No assurance is given as to the service life of any lter cartridge, as
the service life will vary based on local water conditions and water consumption. If the product proves
to be defective within 3 years from the date of purchase, please contact our customer service
department. During the assurance period, we will replace or repair any part that is deemed to be
defective if the product has not been subjected to tampering, alteration, or improper use after
delivery, and has not been repaired by the manufacturer. We do not make any promises in the event of
misuse, use in abnormal temperature conditions, conditions outside those listed in the operating
parameters, or use in commercial operations.
5
Installation of the Filter System
Step 1: Connect to the feed water adapter (cold water only)
1. If the angle valve outlet is 3/8”, inlet hose can be directly connected to the water supply. (Figure 1)
2. If the angle valve outlet is 1/2”, connect it with a No.1 converter at rst. (Figure 2)
Step 2: Connect to the faucet
1. If the faucet hose is 3/8”, outlet hose can be directly connected to the water supply. (Figure 3)
2. If the faucet hose is 1/2”, connect it with a No.2 converter at rst. (Figure 4)
Note: If the original faucet is equipped with a male connector, resulting in disconnetion, please
contact our customer services.
Manufacturer Technical Support
Tel: 1-888-352-3558 (U.S.)
E-mail: service@waterdropfilter.com
Made in China V040
Qingdao Ecopure Filter Co., Ltd.
