Waterdrop M5 User manual

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Reverse Osmosis
Water Filtration System
Countertop
Instruction Manual
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M5

* Please refer to Limited Product Warranty on Page 13
Find the installation video
Register 1-year manufacturer warranty*
Search “Waterdrop M5 Countertop RO Installation” on
Visit warranty.waterdroplter.com and enter the product serial number.
The serial number is the last 7 digits of the barcode on the cover plate and packaging box.
Any questions, please contact us.
service@waterdroplter.com
1-888-352-3558 Mon-Fri 8:00 AM-5:00 PM (PST)
www.waterdroplter.com (live chat available)

Contents
Installation Instructions
Before Installation ··································································1
Product Introduction ·······························································2
Installation Tips ·········································································3
Installation Steps ····································································4
Step 1: Install the Feed Water Adapter ···············································4
Step 2: Connect the PE Tubing and the System Housing···························5
Step 3: Install the Connector ···························································6
Step 4: Install the Drain Saddle ························································7
Step 5: Connect the Inlet Water Tubing···············································7
Step 6: Start up the System ············································
······ ·········8
Owner’s Manual
Display and Operation ·····························································10
Section 1: Filter Life Reminder ·······················································10
Section 2: Filter Replacement Steps ················································10
Precautions ································· · · · ······································11
Troubleshooting ···································································12
Limited Product Warranty ·······················································13

1
Installation Instructions
Before Installation
Product Specications
To achieve the optimal performance, it is highly recommended to use the system
within the operational parameters.
Filter Specications
Name
Name Filtration Media Purpose Quantity Recommended
Replacement Cycle
Total Filtration Capacity
Feed Water Pressure
Service Flow Rate
Feed Water Requirement
Wsterdrop M5 Countertop Reverse
Osmosis Water Filtration System
550 gallons
29-87 psi
15-20 min/tank
M5RF
All-In-One
Filter
Municipal Tap Water
First PP
cotton layer
Filters out sediment, rust,
suspended solids, and other
large particles in water.
Removes organic matters,
chlorine, taste and odor.
Further removes suspended
matter and other impurities.
Improves the taste of water.
With a ltration accuracy of
0.0001 μm, it intercepts organic
matters and heavy metals in
water.
Activated carbon
ber
1 12 months
Second PP
cotton layer
Reverse osmosis
membrane layer
Post-activated
carbon block layer
NOTE:
•The service ow rate is measured using an ambient temperature of 77±35.6°F, a
water temperature of 77±35.6°F, and a feed water pressure of 34.8±2.9 psi. The
water quality will affect the total ltration amount.
•If you are using well water as the source, please ensure that the feed water has
been through a pre-ltration system.
NOTE: The lter’s service life will depend on the use areas, water quality, use
amount, and seasons. Please replace the lter accordingly.

2
Product Overview
Parts List
Product Introduction
Feed Water Adapter
3/8” and 1/2”
All-In-One Filter
System
Housing
Base
Tank
Drain Saddle
Connector
Red 1/4” PE Tubing Thread Extension Stem Metal GasketWhite 1/4” PE Tubing
“L” Quick-Connect Fitting Cable Tie
Lock Clip
X 1 Set
X 1 Set X 1 Set
X 118” X 1 X 1X 118”
X 2
Pressure Relief Valve
X 1 X 6
X 8 (2 Spare Clips)
Cover Plate
Spout Lid
Cover

3
Press
Press
Pull
Installation Tips
How to Use the Quick-Connect Fittings
To connect:
1. There is an existing mark (Figure 1)
at the end of the tubing that you can
use to conrm whether the tubing
is fully inserted into the tting. Push
the tubing into the tting until you
reach the mark on the tubing.
2. If the tubing is not fully inserted, it
will cause leakage. When the tubing
is fully inserted, put the blue lock clip
on the tting. It will lock the tubing in
place and prevent it from falling off.
3. If the tubing is too long, cut it to a
suitable length using a sharp utility
knife or pair of scissors. Cut the
tubing squarely and cleanly (Figure
2). Make sure the tubing is fully
inserted.
To disconnect:
1.Remove the blue lock clip from the
tting.
2.Use your thumb and index nger
to press down on the lock sleeve.
Use your other hand to pull out the
tubing from the tting (Figure 3).
NOTE: Please do not pull out the
tubing directly, or else it will damage
the tting and cause leakage.
Figure 2
Figure 1
Figure 3
Mark for
Full Insert
Cut Cleanly
and Squarely
How to Drill a Hole into Your Sink or Countertop (Optional)
NOTE:
•Please conrm if there is an existing hole available to install the connector. If
not, please drill a hole in accordance with the following steps.
•If the countertop is thicker than 2.68 inches, the connector cannot be installed.
It’s highly recommended to watch the YouTube video “How to Drill a Hole” for a
better understanding of the process. There is also a sticker for your reference
when you drill the hole. Remember to wear safety glasses to protect your eyes
while drilling the hole.

4
1. Choose a diamond core bit for granite, and a carbide drill bit for stainless steel.
Do not use a hammer drill on natural stone, glass, or ceramic.
2. Glue the sticker to your sink or countertop, and drill a hole referring to the size
shown on the sticker (1⅜”).
3. Make an indent with a center punch on a stainless-steel sink before drilling to
help guide the bit.
4. Be careful when drilling on a porcelain sink, as it can be easily chipped. Apply
downward pressure rmly to the bit until breaking through the surface.
5. Starting at the lowest speed, hold the drill straight with rm pressure to prevent
the bit from walking on the counter.
6. Once breaking through the surface, swirl the drill a little to apply pressure in a
circle evenly.
Step 1: Install the Feed Water Adapter (3/8” or 1/2”)
1. Shut off the water supply. Turn on the faucet to release the water pressure.
NOTE: Make sure the water has stopped before proceeding to the next step.
Use a towel or bucket to catch any excess water.
2. Disconnect the cold water pipe from the cold water supply valve.
3. Tighten the converter. Twist the feed water adapter onto the cold water supply
valve (with its washer) and tighten it using an adjustable wrench (Figure 4).
NOTE: If the cold water pipe is 1/2”, unscrew the converter from the A end of
the feed water adapter, and then screw it on the B end of the feed water adapter
(Figure 5).
4. Twist the cold water pipe (with its washer) onto the feed water adapter and
tighten it with an adjustable wrench.
Installation Steps
Prior to installation, it is highly recommended to watch the video “Waterdrop M5
Countertop RO Installation”on .
NOTE:
•Before installation, remove the RO system from the box and choose an easy-to-
access area on the countertop to place it. An adequate at area is necessary to
allow the system to rest securely. Do not lay it on its side, on its back, or upside
down.
•The RO system must be connected to the COLD water supply ONLY.
•Do not install the system where it will be exposed to direct sunlight or harmful
chemicals, nor in any place where it may be damaged.
•Do not install the system near any heat source.
•Do not install the system outdoors.

5
Step 2: Connect the PE Tubing and the System Housing
3/8"
Cold Water Pipe 1/2"
Cold Water Pipe
Washer
Converter
Unscrew
Feed Water
Adapter
Cold Water
Supply Valve
Figure 4 Figure 5
Screw
B
A
Place the system housing in a proper position on the counter. Remove the plugs
from the “DRAIN” and “INLET” ports at the bottom of the system. Press and hold
the lock sleeves while pulling out the plugs. Connect the "L" quick connect ttings
to the “DRAIN” and “INLET” ports. Connect the white PE tubing to the “INLET”
quick-connect tting; connect the red PE tubing to the “DRAIN” quick-connect
tting (Figure 6).
“L” Quick-Connect
Fitting
“L” Quick-Connect
Fitting
Red 1/4”
PE Tubing
White 1/4”
PE Tubing
Figure 6
NOTE:
•When connecting the “L” quick-connect tting to the system, insert it rmly until
it can not be pressed.
•When connecting the PE tubing to the “L” quick-connect tting, make sure it is
fully inserted until you reach the mark on the tubing and pop the lock clip.

6
NOTE: If there is no hole in your kitchen sink or countertop, you have to drill one
(1⅜”) or use the hole in the soap dispenser. Refer to Page 3.
Plastic Nut
Figure 7
NOTE:
•If your countertop is thicker than the thread (1.3
inches), you will need to use a thread extension
stem. Connect the thread extension stem to the
connector. Position the metal gasket and tighten
the plastic nut.
•The PE tubing on the countertop (from the bottom
of the system to the connector) can be xed
together with the cable ties, and the extra parts of
the cable ties can be cut to make the appearance
look neat.
Step 3: Install the Connector
1.Remove the plastic nut of the connector and move the black gasket to the
middle of the thread stem.
2.Hold the white part of the connector with one hand and use the palm of the
other hand to force it out from the bottom of the thread until the black decorative
cover on the top is completely exposed. Remove the decorative cover
horizontally.
3.Insert the connector into the hole and screw the plastic nut (do not tighten).
Insert the inlet tubing and drain tubing into the connector (Figure 7).
4.Adjust the PE tubing to a proper length and press it into the "U" groove of the
connector. Install the decorative cover horizontally. (Figure 8).
5.Press the decorative cover rmly until it is at the same level as the top of the
connector. Tighten the plastic nut.
Figure 8
Thread Extension
Stem
Metal Gasket
Black Gasket
Decorative Cover

7
Step 5: Connect the Inlet Water Tubing
NOTE: Conrm the tubing length you need rst. Then cut the tubing if it is too
long, referring to “How to Use the Quick-Connect Fittings” on page 3.
NOTE:
•Ensure that it is fully inserted to the point where you reach the mark on the
tubing.
•It is recommended that you connect the pressure relief valve. Cut the PE tubing
Step 4: Install the Drain Saddle
Feed Water
Adapter
Connect the other end of the white 1/4” PE tubing to the quick-connect tting of
the feed water adapter. Pop the lock clip onto the tting to secure the connection.
(Figure 12)
Inlet Water Tubing
1. Stick the foam seal on the front plate of the drain saddle. Ensure that the hole
of the foam seal is aligned with the hole of the front plate. Choose a spot on the
drainpipe that is convenient for installing the drain saddle (Figure 9).
NOTE: It’s recommended to install the drain saddle on the vertical drainpipe.
2. Drill a 1/4” hole in the drainpipe. Be sure not to penetrate the opposite side of
the pipe.
3. Slip the front plate on one end of the tubing (without a mark) and insert the
tubing into the drilled hole for about 0.6” (Figure 10).
4. Position the back plate on the drainpipe by tightening the screws and nuts
evenly while leaving the tubing in the hole.
5. Pop the lock clip onto the tting to secure the connection (Figure 11).
NOTE: In some areas, the drain tubing must be connected to the drainpipe
through the air gap. Consumers must purchase air gap accessories separately.
Figure 9
Figure 12
Figure 10 Figure 11
Foam Seal
About 0.6"
Back Plate
Front Plate

8
under the sink evenly. According to the arrow of pressure relief valve, connect
the white end to the PE tubing of the feed water adapter, and connect the blue
end to the PE tubing of the ltration system. Connect the pressure relief valve to
the inlet tubing. Ensure that the tubing is inserted rmly (about 0.6”) to prevent
water leakage. Pop the lock clip onto the tting to secure the connection.
Kitchen Faucet
Feed Water
Adapter
Feed Water
Adapter
Drain Tubing
Drain Saddle
Inlet Water
Tubing
Inlet Water
Tubing
Inlet Water
Tubing
Connector
Pressure
Relief Valve
Pressure
Relief Valve
Cold
Hot
NOTE: Remove the cover plate before use. Set the timer to the current month.
1. Check and make sure all the PE tubing is installed correctly and completely.
2. Turn on the feed water adapter and ensure that there is no water leakage at the
connectors, ttings, and feed water adapter joints.
3. Put the tank on the base (Figure 13). Pay attention to place the tank properly
and make it contact with the base fully. The system will lter water automatically
and stop ltering when the water is full. During the rst use, it is recommended
that you discard the rst 4 tanks of water. The fth tank of water is drinkable.
Step 6: Start up the System

9
NOTE:
•During the rst use of the system, the water will be delayed for about 100
seconds. This will vary according to the water pressure and temperature. This is
because the ltered water must overcome the resistance of the RO membrane,
ll the waterway, and nally reach the tank.
•During the rst use of the system, you will see a small amount of black water,
which is normal. Flush it until the tank contains no black water or unpleasant
odors.
•Turn off the feed water adapter if you do not use the system for a long time.
•If you want to drink ice water, you can put the tank into the refrigerator. If the
water in tank is insufcient, you can put it on the base again to make water. If
you need another tank, please contact the customer service.
service@waterdroplter.com
1-888-352-3558 Mon-Fri 8:00 AM-5:00 PM (PST)
www.waterdroplter.com (live chat available)
Figure 13

10
Owner’s Manual
•Remove the cover plate before use. Set the timer to the current month. Replace
the lter after 12 months.
Section 1: Filter Life Reminder
Section 2: Filter Replacement Steps
•Turn off the feed water adapter before lter replacement.
•Set the timer to the current month and nish the lter replacement.
•Turn on the feed water adapter. It is recommended that you discard the rst 4
tanks of water. The fth tank of water is drinkable.
1. Remove the cover plate.
4. Put in the new lter and
press the locking handle hard.
2. Lift the locking handle.
5. When you hear a snap
and the locking handle
stays in place, the lter
is locked.
3. Use the lter handle to
lift out the expired lter.
6.The locking handle and
cover plate must be on
the same horizontal line.
NOTE: During the rst use of the system, the water will be delayed for about 100
seconds. This will vary according to the water pressure and temperature. This is
because the ltered water must overcome the resistance of the RO membrane, ll
the waterway, and nally reach the tank.

11
Warning:
•Do not store the system in a location exposed to direct sunlight, as this may
cause the aging of the product parts. Do not store or expose the system to an
area below 32°F.
•Do not store the system near appliances with strong magnets, which can cause
re, product damage, or circuit malfunction.
•Do not place heavy objects on the system.
•Do not allow young children to operate, touch, or climb on the system.
•Do not place ammable or volatile substances near the system.
•Do not place the system near heat sources or re.
•Do not put other sundries into the tank.
Precautions
Caution:
•When the inlet water does not meet municipal tap water standards (including
large amounts of sediment, excessive oxygen in the water, etc.), a pre-
treatment device should be installed before the installation of this system.
•The feed water pressure of this system is 29-87 psi. If the water pressure is
lower or higher, install a pressurizer or pressure reducer accordingly.
•The ow rate will decrease when the ambient temperature is low, which is an
inherent characteristic of the lter.
•Clean and replace the lter in time.
•When the system is dispensing water, there will be a slight vibration and noise,
which is normal.
•This system is designed for indoor use only. A oor drain should be located
within 1.5 meters of the system to avoid loss caused by water leakage and poor
drainage.
•If the system will not be used for a long time, turn off the feed water adapter.
Discard the water in tank and the next tank of water when you use it again.
NOTE: In the event of a water outage or pipeline maintenance, turn off the feed
water adapter. When the water supply returns to normal, turn on other faucets
to drain the sediment. Then turn on the feed water adapter. Otherwise, a large
amount of sediment may block the lter.
•Applicable water quality: municipal tap water.
•The feed water pressure of this system is 29-87 psi. When the water pressure
is lower or higher, install a pressurizer or a pressure reducer accordingly.
•The recommended temperature range of the product is 39-100°F. Do not install
the system where the ambient temperature and water temperature are higher
than 104°F or below 32°F.
•Check whether the tubing connected to the system is incorrect and aging.
•Make sure all tubing is fully inserted to the point where you reach the mark on
the tubing.
•Use only authorized WD-M5-G parts and lters.
Installation Precautions

12
•Check the tightness of the feed water adapter and make sure there is no water
leakage.
•When the quick-connect tting leaks, do not replace only the lock clip. You must
replace the entire quick-connect tting.
•Do not omit any lock clips.
•Do not lay the system on its side, on its back, or upside down.
•Do not use a lter that has not been ushed. Discard the rst 4 tanks of water,
then the fth tank of water is drinkable.
•Do not cut the tubing with tools other than a utility knife. Do not bend the tubing.
•Use the new quick-connect ttings that come with the system. The old quick-
connect ttings cannot be reused.
•Do not insert the drain tubing into the sewer. It must be connected to the
drainpipe using the drain saddle.
• There is no ltered water in the tank
a. There is water inside the system: Turn off the feed water adapter and remove
the tank. Tilt the system 45°and pour out the water inside. Turn on the feed water
adapter to start up the system.
b. The water pressure is low: Check and conrm that the water pressure is between
29 psi and 87 psi.
c. A tubing is crimped: Check to ensure that all tubing is installed correctly and
completely.
• The ltered water tastes bad
a. The lter has expired: Replace the lter according to schedule.
b. You have not used the system for a long time: Discard the remaining water in the
tank and in the next tank of water.
c. The water supply quality is poor: Make sure the water supply is municipal tap water.
• Abnormally low ltered water output
a. The lter is clogged: Flush or replace the lter. If you are using well water as
the source, ensure that the feed water has gone through a pre-ltration system.
Otherwise, large particles in the well water will easily clog the lter and shorten the
lter life.
b. A tubing is crimped or there is a leak from the tubing connection: Check to ensure
that all tubing is installed correctly and completely.
c. The water temperature is low: Use the system at a temperature of 39-100°F.
Troubleshooting
•Water leakage
a. Check all the joints, ttings, and tubing connections to locate the leakage. Make
sure the lter is well installed.

13
• High TDS in the ltered water
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
possible causes:
a. The system hasn’t been used in a while. Discard the residual water and the rst
tank of water. The TDS reading will return to normal.
b. The lter is expired: Check the lter life indicator to conrm whether the lter
needs to be replaced; if it does, replace it immediately.
c. The waste water tubing may be crimped or clogged: Check and remove the
crimps. Realign the drain saddle and the drainpipe.
d. The source water may have a high TDS: Test the source water and the ltered
water. The ltered water’s TDS should be about 5%-10% of your source water’s
TDS. This is a normal range. If the source water has a high TDS, it may reduce
the system’s service life. When the ltered water’s TDS creeps up to 15%-20%
of the source water’s TDS, please perform routine lter replacement.
Limited Product Warranty
The warranty of our product covers defects in materials and workmanship from
the original date of purchase. During the warranty period, we will replace or repair
any part which is deemed to be defective, if the product has not been subjected to
tampering, alteration, lack of regular maintenance or improper use after delivery.
The cost of repair or replacement under those excluded circumstances shall be
borne by the consumer. This limited warranty does not cover the following items:
lters and all other parts or components that require regular replacement as a
result of ordinary usage. This limited warranty only applies if the system is installed,
used, and maintained in compliance with all instructions and requirements
enclosed with the system.
This limited warranty shall only be valid if:
1. The feed water pressure is no less than 29 psi and no more than 87 psi.
2. The feed water temperature must be no less than 39°F and no more than 100°F.
3. The feed water must have a pH between 6.5 and 8.5.
4. Turbidity must be less than 1.0 NTU.
Any information or suggestions with respect to our product concerning applications,
specications, or standards is provided solely for your convenience.
The quality of water supplies may vary seasonably or over a period of time. Your
water usage may vary as well. The manufacturer shall assume no liability for the
determination of the proper equipment necessary to meet your requirements, and
we do not authorize others to assume such obligation on our behalf. You must
verify and test the suitability of any information with respect to the product for your
specic application.
This limited warranty shall be void if:
1. The cartridge lters are not replaced according to the recommended
maintenance schedule.

14
service@waterdroplter.com
1-888-352-3558 Mon-Fri 8:00 AM-5:00 PM (PST)
www.waterdroplter.com (live chat available)
2. The product is purchased from someplace other than our ofcial website or
from someone other than our authorized dealers, as in such cases we cannot
verify or guarantee the integrity or authenticity of the product.
Our sole obligation under this warranty shall be the repair or replacement of a
non-conforming product or parts of this product or, at our option, the return of the
product and a refund of the purchase price. Our obligation does not include the
cost of transportation. We are not responsible for damage in transit. A claim for
such damage should be presented to the carrier by the customer.
The warranties set forth herein are the only warranties we have made with respect
to the product. We make no warranties, expressed or implied, including, but not
limited to, any warranties of tness or merchantability, except as expressly set forth
above.
NOTE: In case some states do not allow limitations on how long an implied
warranty lasts, you may choose to return the system. If you choose to keep
it, you agree that the above limitations still apply to you.
Warranty Registration
Please visit our website warranty.waterdroplter.com and go to the “Warranty
Registration” tab to register your product for the warranty.
We offer a 30-day money back guarantee, a 1-year manufacturer warranty,
and lifetime tech support for all our products. Please be sure to ll in the order
information upon registration of your system. For any questions and concerns
about the product, please feel free to contact us. Your satisfaction is our top
priority!
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