Purative Purist General instructions

ADVANCED COUNTERTOP DRINKING WATER APPLIANCE
Installation, Operation and Maintenance Manual

2
TABLE OF CONTENTS
INSTALLATION, OPERATION AND MAINTENANCE MANUAL
This manual provides the necessary consumer information for the hook-up, daily use and maintenance
of the PURIST countertop drinking water appliance. Refer to enclosed warranty and operating param-
eters to ensure proper use with your water supply. Save manual for future reference. Please read
carefully before proceeding with installation. Your failure to follow the instructions or operating
parameters may lead to the product’s failure and possible damage to property. Refer to enclosed
warranty and operating parameters to ensure proper use with your water supply.
Congratulations! . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
General Information and Component Identification . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Required Operating Specifications – Water Supply. . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Performance Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Component and Feature Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Set Up and Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Maintenance and Servicing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Frequently Asked Questions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Advanced Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Replacement and Spare Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Exchanges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Service Record. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Contacting Customer Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Water & Wellness Solutions, Inc. • Fax [phone] • [email protected]
For all customer service inquiries see page 23.

CONGRATULATIONS! You are about to enjoy the
benefits of the most effective and versatile
drinking water appliance available today…
As the PURIST name suggests, the scientifically based, no-frills design of this Point of Use (POU)
drinking water appliance is responsible for its extraordinary performance and versatility. When it
comes to significantly reducing virtually all categories of tap water contaminants, the PURIST is
without equal. Discriminating consumers and those who are seeking health, wellness and healing,
will appreciate the PURIST in supporting their goals.
The PURIST offers a four-stage (three cartridge) water purification system that incorporates the
following essential water treatment technologies to achieve the first responsibility of any drinking
water system – a significant reduction of every category of tap water impurity and contaminant.
• Sediment particle filtration to 5 microns (#1 PREFILTER)
• Activated carbon (AC) adsorption and REDOX (#1 PREFILTER)
• Reverse Osmosis (RO) membrane separation (#2 RO MEMBRANE)
• Coconut-shell activated carbon (AC) adsorption (#3 POSTFILTER)
The PURIST also incorporates two electronic monitors to provide valuable information to the user.
One
advises when to replace the filters and RO membrane using red, yellow and green LED’s. The
other digitally displays the actual
performance of PURIST’s key component, the RO membrane.
The PURIST does not incorporate any storage tank, which assures a consistently higher standard of
chemical and biological purity than other conventional systems using advanced RO and AC technology.
We consider this feature an
essential benefit to those who may already be immuno-compromised,
especially infants, the elderly and those diagnosed auto-immune diseases.
To protect the exceptional purity of the water processed by the PURIST we recommend it be stored
exclusively in glass containers. For longer-term storage we advise that the water be refrigerated
until the day of use.
The PURIST can also be supplied with an optional pump & emergency kit that enables it to treat non-
pressurized sources of water (e.g. a swimming pool). This makes the PURIST suitable for emergency
and survival situations (www.purative.com).
ADVANCED COUNTERTOP DRINKING WATER APPLIANCE
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Unpack the PURIST and Check Parts (Fig. 1)
If you notice any visible damage to the shipping container,
please notify the shipper and the person/company from
whom you purchased your PURIST system. It is helpful
to take a picture of the damaged box.
Compare parts found in the box with the photo above
and/or the parts list at the back of the manual. If any
parts are missing or damaged, please notify Purative
Customer Service at [email protected].
Lifting and Moving the PURIST
Always lift the PURIST appliance with both hands using
the indentations in the gray base. Do not attempt to lift
the unit from the cover itself or the cover latches. This
may cause the premature unlocking of the cover latches,
leading to damage.
4
Fig. 2a. Press on Both Latches
Fig. 1. Photo of PURIST with Parts
Fig. 2b. Lift Cover Straight Up
Main ose
Pure Water
Tube
Removing the PURIST Cover (Fig. 2a, 2b)
Firmly and simultaneously press in on
both latches located at each end of the
base and lift the cover straight up and off.
Set the cover aside on the counter.
Remove the cardboard spacer and store
with the original box. To replace the cover,
place it over the base assembly (making
sure it is aligned properly with the base)
and press down firmly until the latches
snap shut on both sides.
GENERAL INFORMATION AND COMPONENT IDENTIFICATION

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BECOMING FAMILIAR WITH THE COMPONENTS
Fig. 3a. Under the Cover (Front)
A:Water Quality Monitor
B:Battery Holder
C:Battery Contacts
D:Tools
E: Prefilter #1 Cartridge 
F: Postfilter #3 Cartridge
G: RO Membrane #2 Cartridge
Fig. 3b. Under the Cover (Back)
C
D
B
A
E
F
G

REQUIRED OPERATING CONDITIONS – WATER SUPPLY
Water Pressure: 40 psi to 85 psi (2.7 to 5.8 BAR)
Water pressure determines pure water production rate. igher pressure - more water production.
Lower pressure - less water production.
Water Temperature: 40o F to 85oF (4oC to 30oC)
Water temperature determines pure water production rate. igher temperature – more water
production. Lower temperature – less water production. CAUTION: Water temperature exceeding
110oF (43oC) will damage the membrane.
IMPORTANT! The PURIST unit must NOT be exposed to freezing temperatures. Freezing of the
filter and membrane components will result in permanent damage and water leakage. Evidence
of freezing will void the warranty.
Total Dissolved Solids (TDS): Tap water supplied to the PURIST should be
less than 2000 ppm (mg/l) TDS.
•NOTE: Virtually all US public water supplies in the US are less than 1000 ppm TDS
•NOTE: igher TDS water supplies (>1000 ppm) require higher water pressure to give satisfactory performance
from the RO membrane. The pressure should be at least 30 psi (1.7 BAR) greater than the TDS/100*.
•NOTE: The tap water TDS is the reading on the left-side of the Water Quality Monitor display.
Water Iron Level: Less than 0.3 ppm (mg/l) as total iron.
Water Microbial Quality: Source must be a public
potable water supply free of microbial contamination.
For survival/emergency use on water of unknown microbiological, follow the instructions that are
included in the optional pump kit.
PERFORMANCE SPECIFICATIONS
Pure Water Production Rate: Nominally, 1 to 2 gallons per hour (25 to 40 gallons in a 24 hour period)
at typical municipal water supply pressures and temperatures (e.g. 40 - 75 psi water pressure and
40 - 85oF (25oC) water temperature. (See REQUIRED OPERATING CONDITIONS above for performance
effects at different pressures and temperatures)
Water Purity: The PURIST’s superior combination of water treatment technologies is unmatched for
producing drinking water free of harmful levels of contaminants. Virtually every category (heavy
metals, fluoride, pesticides, hydrocarbons, disinfection by-products (DBP’s), radionuclides, etc.) is
significantly reduced by the PURIST’s proven combination of technologies.
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Membrane Rinse Water Flow: The RO rinse water performs
the critical function of continuously transporting impurities
away from the surface of the membrane so it remains clean
and effective for a long period of time (typically two or more
years). This is one of the great advantages of RO technology.
The rinse water flows into the sink drain from the outlet
on the Quick Connect (QC) Faucet Attachment (see Fig. 4)
at the rate of about 3 to 6 gallons per hour depending on
water pressure.
•NOTE: For the conservation-minded, the rinse water usage
can easily be compensated by incorporating inexpensive
water reduction measures such as faucet and shower
restrictors and toilet dams, available on the Internet.
COMPONENT AND FEATURE DESCRIPTION
The main components the user will interact with are briefly described in this section. A replacement
parts list can be found at the back of the manual.
PURIST Quick Connect (QC) Aerator and Adapters (Fig. 5)
This special PURIST QC Aerator (QC-M) replaces the existing
aerator on your kitchen faucet. It allows the QC Faucet
Attachment (Fig. 6) to easily connect and release from the
end of your faucet. A selection of various optional adapters
are provided which allow connecting the QC Aerator to
various faucet threads.
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Fig. 4 Rinse Water Outlet
Fig. 5. QC Aerator and Adapters
Adapters
AC24 WAD-2 WAD-1
QC Aerator

Snap Coupler (Fig. 6)
This convenient attachment allows the user to easily
connect the PURIST appliance whenever pure water is
needed. PURIST can even be taken with you to a vacation
home – just make sure you have an extra PURIST aerator
kit with you (See spare parts list to order).
Tap Water Diverter Valve (Fig. 6)
This valve is built into the QC Faucet Attachment. When
pulled out fully, water flows into the PURIST system.
Rinse Water Outlet (Fig. 6)
This outlet port is attached to the side of the QC Faucet
Attachment and allows the RO membrane rinse water to
flow into the sink. Make sure the drain is not blocked
when using the PURIST. This rinse water serves the critical
function of removing impurities and contaminants from
the RO membrane so you are not wasting water any more
then when you shower or wash clothes.
Pure Water Outlet: The Bottle-Clip (Fig. 7)
The special Bottle-Clip secures the pure water outlet to
the top edge of a clean
glass or non-toxic (BPA-free) plastic
carafe, bottle, jar or cup, which must be placed inside of
the sink when filling. Use the convenient rotating coupling
to adjust the clip position. There is also a protective blue
sleeve to keep the pure water outlet sanitary when not in
use. Take care to keep this tube away from dirt and contam-
ination and regularly rinse it under a stream of hot water.
Maintenance Indicator
(Filter and Membrane Change Indicator) (Fig. 8)
This electronic indicator is located on the upper right of the
PURIST cover and notifies the user of the filter and membrane
replacement status with flashing green, yellow and red LEDs.
Since the indicator is based solely on the elapsed time of
service it should serve
only as a general guideline because
the water conditions can vary so widely depending on location.
On most large modern municipal water supplies the elapsed
time settings are very conservative and both the filters and
RO membrane can maintain their effectiveness up to 50%
longer than the programmed indicator settings.
8
Fig. 6. QC Faucet Attachment with
Diverter Valve
Fig 7. Pure Water Bottle-Clip with
Blue Sleeve
Fig 8. Maintenance Indicator
(Filter and Membrane Change Indicator)
Snap
Coupler
Rinse Water
Outlet
Diverter
Valve

Water Quality Monitor (Fig. 9)
The PURIST incorporates an advanced digital water quality
monitor that
compares the Total Dissolved Solids (TDS)
of the tap water IN with the processed water OUT. No
other competitive product includes this exacting tool for
measuring the RO membrane performance. Furthermore,
this monitor can serve as a true measure of when to
change the RO membrane, which can last up to 50% longer
than the two-year setting of the Filter and Membrane
Change Indicator.
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Fig. 9. Water Quality Monitor

SET-UP AND OPERATING INSTRUCTIONS
IMPORTANT: Always lift the PURIST with both hands from
the handholds in the base. Do not attempt to lift the unit
from the upper part of the cover or the latches. This may
cause the premature release of the cover latches resulting
in damage.
Countertop Placement. Place your PURIST system in a
convenient spot on your kitchen counter to the left or right
of the sink so the QC Attachment hose does not restrict
the kitchen faucet’s range of motion.
Install the Special PURIST QC Aerator (Figs. 11, 12)
1. Remove the regular aerator from the end of your faucet. (You may need to use a pair of pliers with
the jaws wrapped with tape).
2. Determine if any of the optional adapters (WAD-1, WAD-2 and AC-24) are required to attach the QC
Aerator (QC-M), which has threads on both the outside and inside to accommodate different faucet
designs. There are two black washers, one thin and one thick. If you use the internal threads you will
only use the thin black washer. If you use the external threads you will use both the thick and thin
washers. With the necessary adapter and washer(s) in place, thread on the QC Aerator to the right
(clockwise viewed from below) until it is tight. You may need to use a pair of pliers (jaws wrapped
with tape) to make a secure seal. Occasionally the threads on a faucet are worn and may drip water.
If this happens try wrapping some Teflon tape on the threads and remounting the aerator.
•NOTE: It is rare that none of the adapters supplied fit your faucet. owever, there are situations that
may need extra effort. One requires some other less common aerator adapter. The other is where the
10
Fig. 11. PURIST QC Aerator
Fig. 12. PURIST QC Aerator
Fig. 10. Typical PURIST Set-Up at Kitchen Sink
(outside thread
both washers)
(inside thread
one washer)

faucet aerator is attached to a pull-out sprayer that is built into the faucet spout. If the pull-out
sprayer cannot accommodate the QC Aerator, the only options are to a) relocate the PURIST to another
sink faucet (such as a wet-bar, laundry sink or bathroom), b) replace the faucet with a conventional
one with a separate sprayer or c) install an additional single-handle, single-temperature faucet on
the sink or counter exclusively for the PURIST (contact [e-mail] for recommendations).
First Time Start Up (Fig. 13)
1. Grasp the QC Faucet Attachment at the end of the hose
in the palm of your hand, hold down the Snap Coupler
and push it onto the QC Aerator. Release the Snap Coupler
and it should remain securely attached to the QC aerator.
2. Remove the blue plastic sleeve from the end of the
Bottle-Clip (failure to do this will result in pressure
building in the tube and ejecting the sleeve). Place the
Bottle-Clip on the edge of a container and place the
container in the sink. (See Fig. 10 above).
3. Slowly turn on the COLD water ( ot water can damage
the PURIST). You will observe tap water flowing from the
bottom of the QC Faucet Attachment. Now, carefully pull
out the Diverter Valve stem about 1/2" and hold while
water starts flowing into the PURIST. Once the PURIST
is pressurized you can release the Diverter Valve stem and it will remain in the “out” position.
•CAUTION: Once you have pulled the stem out, DO NOT force it back in while the PURIST is operating,
Always turn off the COLD water first and allow the stem to retract by itself.
4. Allow the PURIST to operate for at least one-hour. It’s OK if the container overflows into the sink.
Do not consume this water but it can be used for watering plants and household cleaning tasks.
•NOTE: This procedure is
only required for the initial start-up of a new PURIST and whenever new
cartridges are installed.
Using the Water Quality Monitor (Fig. 14)
With the PURIST still operating for at least one-hour,
remove the cover and set aside. Momentarily press the
red button to activate the Water Quality Monitor. Imme-
diately two numbers will be displayed – the TDS of your
tap water on the left (“Before”) and the TDS of the PURIST
pure water on the right (“After”). If the values represent
greater than 80% TDS rejection the green light will illu-
minate. With daily operation we recommend the Water
Quality Monitor be checked about every 3-4 months to
verify RO Membrane Performance. (See APPENDIX to
determine how to calculate the exact TDS rejection.)
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Fig. 13. Pull out Diverter Valve Stem
to start cold water flow.
Never push in when the faucet is ON.
Fig. 14. Water Quality Monitor “ON”
Button, Green LED and TDS Readings
Snap Coupler

AWA EN the Maintenance Indicator (Filter and Membrane Change Indicator) (Fig. 15)
1. Carefully put the PURIST cover back in place, making
sure to align it properly.
2. The PURIST is shipped with the Filter and Membrane
Change Indicator in the SLEEP MODE. Awaken (AWAKE
MODE) the Indicator by inserting the end of the Acti-
vation Tool (supplied in the parts bag or use a ball-point
pen) into the hole above the words “RESET” and quickly
pressing
once . The three lights will flash in succession,
then the green light will flash every 10 seconds for the
next 11 months. After 11 months the yellow light will
flash to notify the user that replacement cartridges
should be on hand for replacement in 30 days. (See
APPENDIX for more detailed information)
Daily Use
For regular daily usage, allow the processed water to flow
into the sink for a few minutes before collecting water. This assures the very highest quality drinking
water. Securely attach the Bottle-Clip to a suitable container, preferably glass. Remember, always
place the container in an open sink with the drain unobstructed. When you are finished operating
the PURIST, replace the protective sleeve on the end of the Bottle-Clip to keep it sanitary.
12
Fig. 15. Awaken the Maintenance
Indicator (use activation tool provided or
ball point pen).

MAINTENANCE AND SERVICING
Exterior and Interior Surface Cleaning
Minimal work is required to keep the PURIST in perfect operating condition. As with any home
appliance we recommend keeping the unit clean both externally and internally. Use a clean soft non-
scratch cloth and a mild, non-toxic household surface cleaner to wipe down the exterior surfaces.
The internal surfaces and components remain protected most of the time. When the cover is removed
simply spot clean any dust that may have accumulated. If for any reason moisture accumulates
inside the PURIST, always dry the area thoroughly and inspect for leaks.
#1 PREFILTER and #3 POSTFILTER Cartridge Replacement – Yearly Maintenance* (Figs. 16, 17, 18, 19)
When the red indicator light is flashing, it is time to replace
your #1 PREFILTER and #3 POSTFILTER cartridges so you can
continue to enjoy the highest quality drinking water possible.
* The actual usable life of the #1 PREFILTER and #3 POST-
FILTER cartridges is impossible to determine accurately
due to the variations of the public water supply. Modern
municipal water plants typically provide water that is
clean enough to allow these cartridges to last longer
than the 12 month setting programmed into the Main-
tenance Maintenance Indicator* (see APPENDIX).
Prefilter and Postfilter Cartridge Change Procedure
(top two cartridges)
1. Disconnect the QC Faucet Attachment from the faucet;
place in the sink to catch water that may drain out.
2. Remove the PURIST cover.
3. Remove the ends of the red RO membrane fast-flush
tubing from the upper cartridge clips.
4. Access the cartridges. The top cartridge is the #1
PREFILTER and the second is the #3 POSTFILTER (The
bottom cartridge is the #2 RO MEMBRANE).
5. With the cartridges still held in place by the mounting
clips, you are now ready to remove the fittings from the
cartridges of #1 PRETFILTER and #3 POSTFILTER at each
filter end. Firmly press the small end (flat side) of the
black plastic tubing release tool (located inside the front
of the PURIST)
against the outermost side of the blue
and white tube-keepers while carefully pulling the plastic elbow fitting from the cartridge end.
Repeat this procedure for the top two cartridges (4 fittings).
•NOTE: You may also press in the tube-keepers with your finger-tip. NEVER slide the tool
behind the
tube-keeper while pulling the elbow fitting out as this will damage it and it will have to be replaced.
13
Fig. 16. Use tool to press against blue
Tube-Keeper and then gently pull elbow.
Fig. 17. Disconnect fitting from
cartridge
Blue
Tube-Keeper
(behind tool)
Blue
Tube-Keeper

6. Firmly pull the top #1 PREFILTER cartridge towards
you to disengage it from the top clip and then remove
it entirely from the next lower set of clips. Now remove
this set of clips and set aside.
7. Remove the middle #3 POSTFILTER cartridge from the
next set of clips.
8. Install a new #3 POSTFILTER cartridge in the open set
of clips.
9. Mount the available set of clips onto the #3 POST-
FILTER cartridge
10. Install the new #1 PREFILTER cartridge on the open
set of clips.
11. Reconnect the tubing connection to each cartridge by
pressing the elbow fitting into the appropriate
openings of the new cartridges. Elbow fittings must
be fully inserted into cartridges.
12. Re-insert the ends of the red RO membrane fast-flush
tubing into the upper clips.
13. With the cover still removed, connect the PURIST to
the faucet and turn on the water. Allow the unit to
operate for at least 15 minutes to eliminate trapped
air and then check for leaks around the connections.
If there are any leaks, try slightly rotating the plastic
elbow back and forth to readjust the seal. If that fails,
turn off the water, allow the PURIST to depressurize,
remove the leaking elbow and repeat step #10.
14. Replace the PURIST cover.
15. First, AWAKEN the Maintenance Indicator by
quickly pressing the RESET button once . Then, RESET
the Maintenance Indicator by pressing and
holding the reset button for at least three seconds.
The red LED will light followed by the green LED flashing every 10 seconds.
14
Fig. 18. Disengage top cartridge
from clip
Fig. 19. Remove top cartridge from
mounting clips

#2 RO MEMBRANE Cartridge Replacement –
Two-Year Maintenance* (Fig. 20)
At the heart of the PURIST is an NSF Certified Reverse
Osmosis membrane component. It has the unique
advantage of
rejecting impurities and contaminants and
rinsing them away to the drain. This is the true benefit of
the RO process and the primary reason it can remain
effective for two or more years.
* Replacement of the #2 RO MEMBRANE is based on a
two-year schedule as indicated by the Maintenance Indi-
cator on the front cover. In other words, the #2 RO
MEMBRANE should be changed
every other year unless
the user considers extending the RO Membrane life
described in the APPENDIX.
RO Membrane Cartridge Change Procedure (Bottom cartridge)
1. Because the prefilter and postfilter are always changed whenever the RO Membrane is replaced,
simply continue from steps #1 – 7 above.
2. Carefully remove the lower set of clips from the #2 RO MEMBRANE.
3. Firmly press the small end (flat side) of the tubing release tool (located inside the front of the
PURIST)
against the outermost side of the small red, white and gray tube-keepers while gently
pulling out the corresponding orange, white and yellow tubing from each connection.
•NOTE: You may also press in the tube-keeper with your finger. NEVER slide the tool
behind the tube-
keeper while pulling the tubing out as this could damage the tubing and it will have to be replaced.
7. Firmly pry the #2 RO MEMBRANE out of the two clips holding it onto the base. You may have to
use a large screwdriver or piece of wood to serve as a lever. Be careful not to damage the base.
8. Install a new #2 RO MEMBRANE in the lower clips, taking note of the correct orientation.
9. Carefully attach the orange, white and yellow tubing in the corresponding cartridge connections,
making sure the tubing is pushed in as far as possible.
10. Attach the clips (two pairs) to remount the two upper cartridges to the lower cartridge.
11. Re-insert the ends of the red RO membrane flush tubing into the upper clips.
12. With the cover still removed, connect the PURIST to the faucet and turn on the cold water. Allow
the unit to operate for at least 15 minutes to eliminate trapped air and then check for leaks
around the connections. If there are any leaks, try slightly rotating the plastic tubing back and
forth in the connection to readjust the seal. If that fails, turn off the water, allow the appliance
to depressurize, remove the leaking tubing and repeat step 9.
•NOTE: If the leak cannot be stopped, cut 5/8” off the tubing end with a razor knife and re-insert
tubing in connection. If the white “DRAIN” tubing is leaking, first pull out the yellow insert restrictor
(use pliers if necessary), cut 5/8” off the white tubing end with a razor knife, reinsert the restrictor
and reinsert tubing in the drain connection.
15
Fig. 20. Disconnecting Tubing from
the RO Membrane

13. Replace the cover, reset the filter indicator by quickly pressing the RESET once.
14. Allow the PURIST to operate for at least one-hour. Do not consume this water but it can be used
for watering plants and household cleaning tasks.
Enjoy great-tasting pure water until the next membrane change.
Maintenance Indicator
(Filter and Membrane Change Indicator)
Battery Change (Figs. 21, 22)
The batteries should be changed whenever the #1
PREFILTER and #3 POSTFILTER are replaced (12 to 18
months). First, cut and remove the zip-tie around the battery
case. Use the enclosed screwdriver to open the battery
compartment to gain access to the batteries. Use three
high-quality alkaline AA batteries. CAUTION: The batteries
must be installed correctly as noted on the battery case or
damage may occur to the circuit.
Water Quality Monitor Battery Change (Fig. 23)
1. With the PURIST cover removed during a cartridge
replacement, activate the monitor by pressing the red
ON button. If the number displays are dim or there is
no display, it is time to replace the battery.
2. Starting with the right end, pull the monitor from the
Velcro attachment.
3. Remove the battery compartment located on the bottom
by prying it out of the slot with a suitable tool.
4. Install a new CR2032 3V button battery in the
compartment, making sure that the positive “+ side” is
up. Note the molded image on the back of the monitor
for reference.
5. Push the battery compartment back into the slot, making
sure it is positioned as shown by the molded image.
6. Press the red ON button to confirm that the monitor is
displaying the numbers clearly.
16
Fig. 21. Opening Battery older
Fig. 22. Use Three AA Batteries
Fig. 23.

FREQUENTLY AS ED QUESTIONS
Q: What water supplies can the PURIST be used on?
A: While the PURIST is primarily designed for use on potable municipal water supplies (public tap
water) it can also be used on private well systems. owever, there are considerations that must be
taken into account to assure long-term user satisfaction. These include:
• Is the pressure sufficient to produce enough water for daily use? We recommend at least 45 psi
(3 Bar) although the PURIST will operate on as little as 30 psi (2 Bar) with reduced production.
• Are there any well water constituents that might impair the performance of the PURIST such
as excessive levels of iron, manganese, 2S (sulfur) and tannins? If there are contaminates they
must be removed before the water is suitable for the PURIST. ANY LOSS OF PERFORMANCE DO
TO T ESE CONSTITUENTS IS NOT COVERED UNDER T E WARRANTY.
• Is there a presence of pathogenic microorganisms in the well water that exceeds EPA regulations?
Federal law does not allow the PURIST to be recommended for consumer use on microbiologically
contaminated water supplies.
Q: Can I use the PURIST if I have a water softener that uses salt?
A: Yes. In fact, the water softener provides a welcome measure of added protection for the RO
membrane by reducing certain impurities such as hardness and iron. This will substantially extend
the life of the RO membrane, which you can verify with the Water Quality Monitor.
Q: How can I use the PURIST in survival or emergency situations when the city water is turned off?
A: Purative offers an optional pump kit that provides pressure from any open vessel of water such
as a bucket or a swimming pool. The pump connects to the PURIST with some simple modifications
and will produce pure drinking water up to 50 gallons per day. Since open sources of water may be
of unknown microbiological quality, instructions are provided to pre-disinfect the source water to
assure that the PURIST water is always safe.
Q: Will I lose valuable minerals when I drink Reverse Osmosis water?
A: Most tap water does not contain a significant amount or a beneficial combination of minerals in
the first place. Also, there is no technology that can magically leave in the “good” and take out the
“bad” constituents. We obtain the majority of the
major minerals from the foods and juices we
consume. owever, due to modern farming practices and food processing, most trace elements are
no longer available in sufficient quantity or form in our foods to support optimal health. Complete
“83 mineral and trace element” supplementation is therefore essential. The Purative approach is
to remove as many contaminants as possible followed by re-mineralizing and molecular restructuring.
Then if the user requires further health promoting enhancements they can elect to add alkaline
buffering and/or active hydrogen anti-oxidizing tablets for a high negative ORP.
Q: How should I store my PURIST appliance when not in use for longer periods (> one month)?
A: The reverse osmosis membrane actually works better and lasts longer the more it is used, so operate
it
at least twice weekly even if the water is given away. When not in use for longer than a month, dry off
the cover, replace the blue cap on the Bottle-Clip and store it in a cool, dry environment. If you need to
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store the unit for even longer periods of time, remove all three cartridges and store in a refrigerator, making
sure they cannot freeze.
Q: Should I store my PURIST water in the refrigerator?
The PURIST removes virtually all of the disinfectants used to inhibit bacterial growth in the city water
pipes. If you are not going to use the PURIST water for more than a day, make sure that it is in a
glass container and keep in the refrigerator to prevent harmless airborne bacteria from multiplying.
Q: Will hot water ruin the RO Membrane?
A: ot water over 110° F will damage the RO Membrane in a fairly short time and result in a decline
in the reduction of impurities. It will also weaken some of the plastic components that are under
pressure and this may result in a failure and leak. Make sure you only use cold water with your
PURIST appliance.
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APPENDIX
Maintenance Indicator (Filter and Membrane Change Indicator) Operation
There are three operations associated with the Maintenance Indicator:
1. Sleep Mode: The PURIST is shipped in the SLEEP MODE. Whenever the cover is removed from the
appliance the indicator goes into the SLEEP MODE and stops the filter and membrane timer. When
the cover is replaced the indicator is ready to be put into the AWAKE mode.
2. Awake Mode: Insert the Activation Tool or ball-point
pen into the hole market “RESET” and quickly press
once
to awaken the indicator to start or resume timing. The
indicator’s three LED’s (green, yellow, red) will flash once
and then the green LED will continue to flash every 10
seconds for eleven (11) months. Then the yellow LED will
begin to flash every 10 seconds for one month, prompting
the user to purchase new cartridges. Finally, the red LED
will begin to flash, indicating it is time to change filters
(12 month) or filters and RO membrane (two years).
3. Reset: After replacing Filter Cartridges, RO Membrane
Cartridge and Batteries, the Maintenance Indicator must
be RESET. By pressing and holding the RESET button for
at least three seconds, the Maintenance Indicator timer
is reset to zero and a new 12-month timing cycle is
initiated.
Batteries
(3) AA alkaline. Approximate battery life based on alkaline
Duracell batteries = 3 months sleep mode + 16 months
operation.
Extending the Service Life of #1 PREFILTER and
#3 POSTFILTER up to 18 Months (Fig. 25)
If you are connected to a large modern city water supply,
you can probably extend the service life of the prefilter and
postfilter cartridges up to 18 months. Before you take this
step, check the Water Quality Monitor TDS readings and
confirm that the pure water TDS (right side of display) is less
than 10% of the city water supply TDS (left side of display).
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Fig. 24. Awaken the Filter and
Membrane Change Indicator
Fig. 25. Water Quality Monitor
Readings

Extending the Service Life of #2 RO MEMBRANE Using the
Water Quality Monitor TDS Readings (Fig. 25)
The more accurate measure of when to change the #2 RO MEMBRANE is based on a comparison of
the TDS readings of the tap water (IN) and the PURIST pure water (OUT). We suggest if the TDS OUT
is
less than 20% of the TDS IN then the membrane performance is excellent. If the TDS OUT is greater
than
20% of the TDS IN then the membrane should be changed.
Example 1:
TDS IN reading = 350 ppm
TDS OUT reading = 25 ppm
25 = 7% of 350 (Excellent #2 RO MEMBRANE performance; continue use)
Example 2:
TDS IN reading = 350 ppm
TDS OUT reading = 75 ppm
75 = 21% of 350 (Marginal #2 RO MEMBRANE performance; change soon)
ADVANCED SERVICE
Monitoring Production Rate
The production rate of the PURIST is another factor the user can consider for changing the #2 RO
MEMBRANE. After your PURIST is broken-in, measure how much time, in minutes, it takes to produce
a specific volume of water such as a quart or liter. Record and save this information in your manual.
Bear in mind that both the water pressure and the water temperature have a big influence on the
production rate (lower pressure and lower temperature result in the less water production) so there
is a significant variation from location to location. If there is a gradual decline in production rate over
time and it cannot be attributed to lower pressure or water temperature then the membrane surface
may be plugging up (fouling) due to the poor tap water quality. Change the membrane if the production
rate is inadequate to meet your daily requirements.
Fast-Flushing the RO Membrane to Restore Performance
In anticipation that the PURIST being used on high sediment water supplies (e.g. potable rural water
supplies and potable well water) a simple means of fast-flushing the RO membrane has been provided.
This procedure can further extend the performance of the RO membrane. It is especially effective if
the TDS of the pure water is still <10% of the TDS of the tap water but the production rate has noticeably
decreased. A short piece of red-tubing is attached to the cartridge clips for this procedure. Simply
remove it from the clips and follow these steps:
1. Wiith the PURIST still connected to the faucet and the water turned off, move the PURIST to the
other side of the sink so the back is facing you. Remove the cover and set aside.
2. Firmly press the small end (flat side) of the tubing release tool
against the outermost side of the
white “DRAIN” tube-keeper while gently pulling out the corresponding white tubing from the connection.
3. Insert one end of the red fast-flush tubing securely into the connection. old the free end into the
sink and turn on the cold water fully. Allow water to rapidly flow through the RO membrane and
dislodge sediment build-up.
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