Franklin Water Treatment PKLX Series Quick start guide

Franklin Water Treatment, LLC
12630 US Highway 33 N
Churubusco, IN 46723
Phone [phone] Fax [phone]
PKLXInstruction Manual231109.docx
PKLX Series
Catalytic Filter System
Installation Instructions and Owner’s Manual

1
Copyright ©2023, Franklin Water Treatment,LLC. All Rights Reserved.
Pre-installation Instructions
Page 2
General Installation
Page 4
Bypass Valve
Page 5
Installation Instructions
Page 6
General Operation
Page 10
Maintenance
Page 11
Troubleshooting Guide
Page 13
Specifications
Page 16
Component Parts Breakdown
Page 17
Component Parts List
Page 18
Control Valve Breakdown
Page 19
Control Valve Parts List
Page 20
Installation Fittings
Page 21
Ten Year Limited Warranty
Page 24
Table of Contents

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Copyright ©2023, Franklin Water Treatment,LLC. All Rights Reserved.
Description of the iron filtration system
The PKLX catalytic filtration system includes a single filtration tank with a pocket of air and a backwashing control
valve. Incoming water flows into thecontrol valve and is directed into the filtration tank. Exposure to the air inthis
tank will start oxidizing the iron which is then trapped by the media. The iron/sulfur-free water then returns to the
control valve where it is directed into the service lines.
Periodically thecontrolvalve will go through a backwashcycle. This cycle will typically begin at 1:00 A.M. flushing
theaccumulatedirontothedrain. Partofthisbackwashingprocessincludesanairdraw cyclewhichwillreplenish
the pocket of air in the filter tank and prepare the unit for the next period of service.
Water Quality
While the PKLX filter will perform under a variety of water qualities there are a few things that need to be
considered to ensure satisfactory performance. The water should be tested to determine the concentration, or
levels of the items listed below.
pH - A measurement of the acidity of the water. pH is reported on a scale from 0 to 14. Neutral water has a pH
of 7.0, lower values indicate acidic water. The PKLX catalytic filter performs best when the pH is 7.0, or higher.
The catalytic media is typically able to elevate the pH of the water to the level needed for oxidation to occur.
Iron - A naturally occurring metallic element. Iron concentrations in excess of 0.3 milligrams/liter (mg/l) combine
with oxygen causing orange or red (rust) stains on plumbing fixtures. Iron naturally exists in some water sources
in either clear water (ferrous) state, red water (ferric) state or bacterial form. The PKLX catalytic filter can reduce
any of these forms of iron.
Manganese - A naturally occurring metallic element. Manganese concentrations as low as 0.05 milligrams/liter
(mg/l) can combine with oxygen to cause dark brown or black staining on fixtures. Additionally, manganese can
cause an odor in the water similar to a “rotten egg” smell. The PKLX catalytic filter reduces manganese as well
as iron. Manganese oxidation requires the pH of the water to be elevated to 8.2 or higher.
Tannin - A naturally occurring humic acid. Tannin is an acid caused by water passing through decaying
vegetation. Coffee and Tea are prime examples of tannin in water. As hot water passes over the coffee beans,
or tea leaves, the tannin is extracted causing color and flavor in the water. Tannin concentrations as low as 0.3
milligrams per liter can cause a yellow discoloration inthe water and may interferewith the PKLXfilter’s long-term
ability to function properly as the media becomes coated with the tannic acid.
Hydrogen Sulfide - A naturally occurring gas. Hydrogen sulfide, more commonly referred to as sulfur gas,
causes a distinct odor similar to “rotten eggs.” Due to its gaseous nature, hydrogen sulfide must be tested at the
well site within 1 minute of drawing the sample. If a water sample has been sitting for a while the sulfur gas will
dissipate and cause the hydrogen sulfide test to be lower than the actual concentration. If sulfur is present, the
filter should be set to backwash more frequently to prevent the gas from building up.
Pre-installation Instructions

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Copyright ©2023, Franklin Water Treatment,LLC. All Rights Reserved.
Water Supply
This filter will function properly when the water supply is furnished by a jet pump, submersible pump, variable
speed (constant pressure) pump or community water supply. As with all other filter systems, however, it is
imperativethatthewellpumpprovidesenoughflowratefor thefiltertoadequatelybackwash. To ensuresufficient
backwash flow rate, the following pumping rate test should be performed prior to installing the PKLX. Backwash
flow rate required may vary from the installed DLFC depending on the media used with the filter.
1. Make certain no water is being drawn in the house.
2. Open spigot nearest pressure tank.
3. When well pump starts, close spigot and measure time (in seconds) to refillpressure tank (well pump
turns back off). This is Cycle Time.
4. Using a container of known volume, draw water from pressure tank and measure how many gallons
until the pump turns back on again. This is Draw Down.
5. Calculate pumping rate by dividing draw down by cycle time and multiplying by 60.
Draw Down (gallons)
X
60
=
Pumping Rate (gallons per minute)
Cycle Time (seconds)
Example: Draw down is 8 gallons
Cycle time is 65 seconds
Location Considerations
The proper location to install the PKLX will ensure optimum filter performance and satisfactory water quality. The
following factors should be considered in selecting the location of this system.
1. The PKLX must be installed after the pressure tank (private well system only).
2. The system should be installed as close as possible (preferably within 15’) to an adequate floor or
laundry drain capable of handling the backwash cycle volume and flow rate (refer to unit
specifications). An air gap should be provided between the PKLX drain line and plumbing drain.
3. All water conditioning equipment should be installed at least 10’ prior to the water heater. Water
temperatures exceeding 100°F can damage the internal components of the control valve and filter
tank. An expansion tank may need to be installed in the line to the water heater to allow for thermal
expansion and comply with local plumbing codes.
4. Water pressure must not exceed the range of 25 - 100 psi.
5. The system must not be subject to freezing temperatures.
6. The control valve requires 115/120 V, 60 Hz electricity from an outlet that is not wired to a switch.
7. Never installa cartridge type filter prior to the PKLX. Any cartridgeor in-line filter (if desired) may be
installed after the PKLX system. This will prevent restricting the water flow and pressure available
for backwash.
8. Appliances requiring extended periods of continuous or high flow water use (i.e. geothermal heat
pumps, swimming pools, lawn irrigation, outside hose bibs, etc.) should bypass the filter.
8 gallons
X
60
=
7.4 gpm (gallons per minute)
65 seconds
Pre-installation Instructions (cont.)

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Copyright ©2023, Franklin Water Treatment,LLC. All Rights Reserved.
GENERAL INSTALLATION & SERVICE WARNINGS
The water conditioner is not designed to support the weight of plumbing.
Do not use Vaseline, oils, other hydrocarbon lubricants or spray silicone anywhere. A silicone lubricant may be
used on black “O” Rings. This will allow ease of installation and decrease chance of rolling from the bypass and
tank connections. Avoid any type of lubricants, including silicone, on red or clear lip seals.
Do not use pipe dope or other sealants on threads. Teflon®tape may be used as required. Teflon®tape is not
used on any connection where “O” Ring seals are used
The nuts and caps are designed to be unscrewed or tightened by hand or with the special plastic Service
Wrench, (CV3193, not included). If necessary, pliers can be used to unscrew the nut or cap. Do not use a pipe
wrench to tighten nuts or caps. Do not place screwdriver in slots on caps and/or tap with a hammer.
NOTE: If the plumbing system is used as the ground leg of the electric supply, continuity should be maintained
by installing ground straps around any non-conductive plastic piping or bypass used in the installation.
Make sure the filter is not installed backwards. The filter will not function properly if installed backwards and filter
media may be forced into the service lines. Arrows molded into the valve body and red handles of the bypass
indicate the direction of flow.
The PKLX has a check valve (OV32) installed in the inlet of the control valve. This check valve will prevent hot
water expansion in the plumbing. An expansion tank must be used on the water heater supply line to
allow for thermal expansion.
All local plumbing codes must be followed.
FIGURE 1: Typical Installation
General Installation
PKLX

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The bypass valve is used to isolate the control valve from the plumbing system's water pressure in order to
perform controlvalve repairs or maintenance. The1" full flow bypass valve incorporates four positions including
a diagnostic position that allows a service technician to have pressure to test a system while providing untreated
bypass water to the building. Be sure to install bypass valve onto main control valve, before beginning plumbing
or make provisions in the plumbing system for a bypass. The bypass body and rotors are glass filled Noryl®
and the nuts and caps are glass filled polypropylene. All seals are self-lubricating EPDM to help prevent valve
seizing after long periods of non-use. Internal "O" Rings can easily be replaced if service is required. The
bypass consists of two interchangeableplug valves that areoperated independently by red arrow shaped
handles. The handles identify the direction of flow. The plug valves enable the bypass valve to operate in four
positions.
1. Normal Operation Position: The inlet and outlet handles point in the direction of flow
indicated by the engraved arrows on the control valve. Water flows through the control
valve for normal operation of a water softener or filter. During the regeneration cycle this
position provides regeneration water to the unit, while also providing untreated water to
the distribution system (Fig. 2).
2. Bypass Position: The inlet and outlet handles point to the center of the bypass. The
system is isolated from the water pressure in the plumbing system. Untreated water is
supplied to the building (Fig. 3).
3. Diagnostic Position: The inlet handle points toward the control valve and the outlet
handle points to the center of bypass valve. Untreated supply water is allowed to flow to
the system and to the building, while not allowing water to exit from the system to the
building (Fig. 4) .This allows the service technician to draw brine and perform other tests
without the test water going to the building.
NOTE: The system must be run through a rinse cycle before returning the bypass valve
to the normal position.
4. Shut Off Position: The inlet handle points to the center of the bypass valve and the outlet
handle points away from the control valve. The water is shut off to the building. The water
treatment system will depressurize upon opening a tap in the building. A negative pressure
in the building combined with the softener being in regeneration could cause a siphoning
of brine into the building. If water is available on the outlet side of the softener it is an
indication of water bypassing the system (Fig. 5)
Figure 2 - Service
Figure 3 - Bypass
Figure 4 - Diagnostic
Figure 5 –Shut Off
Bypass Valve

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STEP 1: Unpack filter unit, making sure to remove entire contents of the shipping container prior to disposal.
STEP 2: If the filter already has the Katalox media loaded, skip to STEP 6. Otherwise, with the filter unit
in the upright position, remove the control valve from the mineral tank being careful to not pull the
distributor out of the gravel at the bottom of the tank
STEP 3: Cover the top of the distributor tube with the included red cap. Using the included blue media funnel,
pour filter media into the mineral tank on top of the gravel underbed. 14” of space MUST be left
empty atthetopofthemineraltanktoallowformediabedexpansionduringbackwashandtoprevent
filter media from being discharged through the drainline.
STEP 4: Use a garden hose or bucket to fill the media tank with water.
STEP 5: Clean mineral tank threads to removeany filtermedia. Removethe redcapfromdistributortubeand
reinstall control valve by threading it securely onto themineral tank. (O-ring seal: HAND TIGHTEN
ONLY!)
STEP 6: Shutoffall waterat mainsupply. Onprivatewellsystem,turnoffpowertopumpanddrainpressure
tank. Make certain pressure is relieved from complete system by opening nearest faucet to drain
system. SHUT OFF FUEL / ELECTRICAL SUPPLY TO WATER HEATER.
STEP 7: Plumb the water supply line to the unit's bypass valve inlet, located at the right rearasyou face the
unit. There are a variety of installation fittings available. They are listed under Installation Fitting
Assemblies, pages 23-25. When assemblingtheinstallation fittingpackage(inletandoutlet),connect
the fitting to the plumbing system first and then attach the nut, split ring, and "O" Ring. Heat from
soldering orsolventcements may damage thenut, split ring, or"O" Ring.Solder joints shouldbe cool
and solvent cements should be set before installing the nut, split ring, and "O" Ring. Avoid getting
solder flux, primer, and solvent cement on any part of the "O" Rings, split rings, bypass valve, or
controlvalve.Ifthebuilding'selectricalsystemisgroundedtotheplumbing,install acoppergrounding
strap from the inlet to the outlet pipe. Plumbing must be done in accordance with all applicable local
codes. MAKE CERTAIN WATER ENTERS THROUGH INLET AND DISCHARGES THROUGH
OUTLET.
STEP 8: Apply thread tape to DLFC Assembly. Remove drain line flow control (DLFC) retainer clip (Figure
6, Page 7) and remove the DLFC assembly from the valve body, (Figure 6, Page 7). Apply thread
tapetothreads.Slidedrainfittingcompressionnutontoprovideddraintubingandplacethetubeinsert
insidetheendofthetubing. Inserttubingend withinsertintodrainelbowandtightenthecompression
nut onto the thread taped elbow. Reinsert DLFC assembly into the valve body, making certain it is
FULLY inserted before replacing the retaining clip.
STEP 9: Install drain line. Use the provided ½” I.D. polyethylene tubing (DO NOT USE FLEXIBLE VINYL
TUBING!) to run drain line from controlvalve DLFC fitting (Figure 6, Page 7) tofloor drain or sump pit
capable of handling the backwash rate of the filter (refer to specifications and flow rate on page 17)
or discard the compression fitting and use the ¾” NPT fitting to connect a rigid pipe drain line . If
backwash flow rate is greater than 7.5 gpm, use existing NPT connector with rigid drain line. There
must be an air gap at the end of the drain line to prevent siphoning of wastewater. Length of drain
line should be 15’ or less. AVOID OVERHEAD DRAINS.
Installation Instructions

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STEP 10: With the bypass valve handles in the bypass position (Figure 3, Page 5), turn on water
supply. Turn the inlet bypass valve handle to the diagnostic position (Figure 4, Page 5) and
allow the filter to pressurize. NOTE: the INLET and OUTLET knobs turn clockwise to close the
port to the filter and counter-clockwise to open the portto the filter. Check for leaks and correct
as needed. Return the inlet bypass valve handle to the bypass position.
STEP 11: Programcontrolvalve. Plugthetransformerofthecontrolvalveintoanuninterruptedelectrical
outlet (not wired to a switch) and use the buttons on the front of the control valve to adjust the
initial settings.
A) SET THE TIME OF DAY
1. Press the “CLOCK” button
a. The upper left of the display will show “TIME SET HOUR”
b. The hour will flash
2. Press the “UP”or “DOWN”buttons (triangle pointing up or down) until the correct
combination of hour and “AM” or “P M” is reached to match the current time.
3. Press the “NEXT” button
a. The upper left of the display will show “TIME SET MINUTES”
b. The minutes will flash
FIGURE 6: Top View of Control Valve
Installation Instructions (cont.)
Meter
Union
Nut
Refill Elbow
Injector
Housing
Control
Valve
Cover
Drain Elbow 3/4” MNPT
with Compression Nut
3/4” FNPT & Tube Insert
for 5/8” OD Drain Tube
(Retainer Clip not shown
and 1” Drain Fitting not
shown)
Refill Elbow
Retainer Clip
Air Screen &
Stem Adapter

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4. Press the “UP”or “DOWN”buttons until the minutes match the current time.
5. Press the “NEXT” button to return to the main display
B) Enter Programming: Press “NEXT” and “UP” (triangle pointing up) buttons simultaneously for
3 seconds.
1. Days Between Regeneration:
a. The upper left of the display will show “DAYS BETWEEN REGEN SET”
b. A number will flash (default 3)
2. Using the “UP”or “DOWN”(triangle pointing up or down) buttons, set the number of
days (default 3) between regenerations. NOTE: more frequent regeneration may
be required depending on the quality of the water.
3. Regeneration Time: Press the “NEXT” button
a. The upper left of the display will show “REGEN TIME HOUR SET”
b. The hour will flash
4. Regeneration Hour: Using the“UP”or “DOWN”buttons, set the combination of hour of
day and “AM” or “PM”.Make sure the filter is not regenerating at the same time with
any other water treatment equipment.
5. Press the “NEXT” button
a. The upper left of the display will show “REGEN TIME MINUTES SET”
b. The minutes will flash
6. Regeneration Minutes: Using the “UP”or “DOWN”buttons, set the minutes portion of
the time when regeneration should occur.
7. Exit Programming: Press the “NEXT” button to return to the main display
STEP 12: Initiate Manual Regeneration (Backwash Cycle): With the bypass valve in the bypass position,
press and hold the “REGEN” button 3 seconds or until the word “BACKWASH” appears in the upper
left of the display. The drive motor will run briefly, and a count-down timer will appear in the lower
right the display. There will bean audible release of pressure to the drain.
STEP 13: Unplug the transformer from the electrical outlet to keep the PKLX in backwash for an extended
time to purge any air and remove media “fines” (very small particles of media).
STEP 14: Slowly turn the INLET knob of the bypass, counterclockwise, to a point approximately 1/3 of the way
between “Bypass” and “Service” positions (Figure 2, Page 5) or until the remaining air is released
from the tank.
STEP 15: Once the airis purged, gradually turn the INLET knob of thebypass valve counterclockwise until itis
fully in “Service” position (Figure 2, Page 5). Then turn the OUTLET knob of the bypass valve
counterclockwise until it is fully in the “Service” position (Figure 2, Page 5). and leave the control
valve in “Backwash” position for at least 10 minutes or until water flowing from the drain line
runs clear; whichever is longer.
Installation Instructions (cont.)

9
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STEP 16: Regenerant Draw Cycle: Plug the transformer into the electrical outlet. Press the
“REGEN” button to advance the control valve to the “REGENERANTDRAWDN” cycle. Another
count-down timer will appear in the time-of-day position, “REGENERANT DRAW DN” will be
shown in the upper part the display.
STEP 17: Complete Manual Regeneration: Allow the regeneration to complete and the filter will return
to service mode automatically.
STEP 18: TURN ON FUEL / ELECTRICAL SUPPLY TO WATER HEATER.
Installation Instructions (cont.)

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USER DISPLAYS
When the system is operating, one of several displays may be shown. Pressing NEXT will alternate between the
displays. One of the displays is the current time of day. The second display shows days to a regen/gallons
remaining (depending on how it is programmed). Days To A Regen is the number of days left before the system
goes through a regeneration cycle. Capacity remaining is the number of gallons that will be treated before the
systemgoesthrougharegenerationcycle.Thethirddisplayiscurrentflowingal/min.Theusercanscrollbetween
the displays as desired by pushing NEXT or display will scroll automatically. When water is being treated (i.e.
water is flowing through the system) the word "GPM" flashes on left side of display when other than flow rate is
displayed. User screens will continuously scroll, switching views every 3 seconds. If the screens are manually
scrolled, this screen will remain constant for 5 minutes then continue to scroll. The conditional screens will take
precedence over the scrolling and the conditional conditions will apply. To manually reduce capacity, press down
button while capacity remaining or days to a regen is displayed.
MANUAL REGENERATION
Sometimes there is a need to regenerate the system sooner than when the system calls for it, usually referred to
as manualregeneration. There may bea periodof heavy water usage because ofguests or a heavy laundry day.
Toinitiateamanualregenerationat the preset delayed regeneration time, press and release “REGEN”. The words
“REGEN TODAY” will flash in left corner of display as it scrolls through displays to indicate that the system will
regenerate at the preset delayed regeneration time. If you pressed the “REGEN” button in error, pressing the
button again will cancel the request. To initiate a manual regeneration immediately, press and hold the “REGEN”
button for five seconds. The system will begin to regenerate immediately. The request cannot be cancelled. You
must cycle all the way through the cycles to make it stop. PLEASE NOTE: This will reset the meter. Note: If the
salt tank does not contain salt, fill with salt and wait at least two hours before regenerating. If two regenerations
aredesired within 24 hour period, press /releaseREGEN button. REGEN TODAY will flash onscreen. Press and
hold REGEN button until valve initiates an immediate regeneration.
General Operation

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1) Katalox Light media should be replaced when sulfur or iron reappears in thetreated water and backwashing
does not improve the water quality or if excessive pressure loss is experienced.
2) Verify the unit draws air during the REGENERANT DRAW cycle at least every 12 months. Clean or replace
the air check valve (OV15HT) and/or the injector (CV3010-1I) and/or injector screen (CV3177-01), if needed.
TO REBED MEDIA:
1) Pressure must be relieved on the system by placing the Bypass Valve in the “Bypass” position (Figure 3,
Page 5) and initiating a manual regeneration (section 3, page 10).
2) Unplug the Control Valve fromthe electrical outlet to preventit from advancing automatically.
3) Disconnect the Control Valve fromtheBypass Valve.
4) Disconnect the Drain Line from the Control Valve
5) Unscrew Control Valve from Mineral Tank. Remove the distributor.
6) Siphon water from Mineral Tank. Remove existing media and gravel.
7) Rinse Mineral Tank and replace distributor, making certain that the distributorbasket sits in the center of the
tank bottom.
8) Cover the top of the distributor tubeto prevent media entering the tube during filling. Using afunnel, pour filter
media into the mineral tank. Begin loading the tank with the gravel underbed. Filling the Mineral Tank
1/3 with water before loading gravel will cushion the fall and ensure even distribution of the gravel
and media. 14” of space MUST be left empty at the top of the mineral tank to allow for media bed expansion
during backwash and to prevent filtermedia from being discharged through the drain line.
9) Use a garden hose or bucket to fill the media tank with water.
10) Clean mineral tank threads to remove any filter media. Uncover distributor tube and reinstall control valve by
threading it securely onto the mineral tank. O-ring seal; HAND TIGHTEN ONLY!
11) Attach bypass valve to control valve body.
12) Reattach Drain Line to Control Valve (Figure 6, Page 7).
13) Gradually turn the INLET side knob of the bypass valve counterclockwise not more than ½ way (45
degrees) to the “Service” position (Figure 2, Page 5) allowing unit to pressurize slowly. Check for leaks
and correct as needed. Any air trapped in the media bed should begin purging to the drain and water
should begin flowing to the drain.
14) Once theair is purged, gradually turnthe INLET knob of the bypass valve counterclockwise until it is fully
in “Service” position (Figure 2, Page 5). Then turn the OUTLET knob of the bypass valve counter-
clockwise until it is fully in the “Service” position (Figure 2, Page 5). and leave the control valve in
“Backwash” position for at least 10 minutes or until water flowing from the drain line runs clear;
whichever is longer.
Maintenance

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15) Plug the transformer into the electrical outlet. Allow the air draw and rinse cycles to complete and the
filter will return to service mode automatically.
Maintenance (cont.)

13
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PROBLEM
CAUSES
SOLUTIONS
Excessive pressure drop
through filter
A) Filter not
backwashing
B) Filter not
backwashing
frequently enough
for water condition
C) Filter bed loaded
with sand
D) “Cementing” or
“Channeling”
E) Drain Line restricted
F) Control Valve
plugged with debris
1) Check if display is blank, see “Blank
Display” section of Page 14.
2) Check if display has an error
message, see “Error Code” section of
Page 16.
3) Verify drive motor is connected to
circuit board connector J1 (labeled
“MOTOR”) and is not faulty
4) Ensure uninterrupted power supply
5) Increase Backwash frequency
6) Verify sediment being removed is less
dense than the filter media and install
a “Spin-Down” type sediment filter
ahead of the PKXL to remove well
sand
7) Verify adequate pumping rate for
backwash
8) Probe media bed to check for
“Cementing”
9) Check drain line for restriction: frozen,
plugged, kinked, exceeds 15’,
overhead installation, flexible drain
line, drain line diameter too small
10) Disassemble and clean control valve
Contaminant not being
properly removed
A) Leaking bypass
valve
B) Internal valve leak
C) Distributor tube not
seated properly in
control valve
D) Water usage flow
rate exceeds filter
specifications
1) Verify bypass valve is in service
position
2) Replace piston and seal assemblies
3) Verify distributor tube seated securely
in control valve body
4) Verify actual water usage flow rates
against system specifications
5) Increase length of backwash and rinse
cycles
Media raises pH too high
A) Filter is brand new
or newly re-bedded
B) Wrong media used
1) Give the unit time for the pH to
stabilize
2) Re-bed the unit with a less aggressive
media
Media fails to raise pH
sufficiently
A) Water usage flow
rate is too high to
provide adequate
contact time
B) Media bed is
“Cemented” or
“Channeled”
1) Verify actual water usage flow rates
against system specifications
2) Verify adequate pumping rate for
backwash
3) Check drain line for restriction: frozen,
plugged, kinked, exceeds 15’,
overhead installation, flexible drain
line, drain line diameter too small
4) Re-bed with a more aggressive media
Filter fails to remove iron
A) pH too low (< 7)
B) Insufficient air head
C) Iron level or
demand flow too
high
1) Add MpH Adder to filter tank or install
soda ash injection system before iron
filter
2) Install/replace inlet check valve,
replace air check valve and/or injector,
replace seals & spacers
3) Plumb a second unit in parallel
Troubleshooting

14
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PROBLEM
CAUSES
SOLUTIONS
Loss of media
to drain
A) Air in system
B) Insufficient soak
time before first
backwash after
installing media
1) Ensure wellsystem has proper air
elimination control
2) Check media leveland adjustif
necessary
Media in service lines
A) Unit is installed
backwards
B) Distributor basket
is broken
C) Insufficient gravel
under bed
1) Re-plumb the water lines so that the
supply side of the line is connected to
the inlet of the bypass and the service
side is connected to the outlet.
2) Replace distributor.
3) Add gravel to tank, manually
backwash
Howling or whistling noise
during regeneration
A) Inadequate drain
line diameter or
drain line restricted
1) Reconfigureor replace drain line
Continuous flow of water
to drain
A) Loss of electrical
power during
regeneration
B) Debris in control
valve
C) Internal leak in
control valve
1) Ensure electrical outlet is functioning
2) Disassemble and clean control valve
3) Replace seals and/or piston
Filter backwashes at
wrong time of day
A) Clock is not set
properly
B) Power outage
C) Incorrect control
valve programming
1) Reset the clock (page 7)
2) Verify control valve programming
(page 8)
Display is blank
A) Control valve circuit
board needs reset
B) Transformer is
unpowered,
unplugged or
defective
C) Defective circuit
board
1) Hold “NEXT” and “REGEN” buttons
for 3 seconds
2) Remove battery, unplug power for 5
seconds, plug back in, replace dead
battery.
3) Verify transformer is plugged into an
electrical outlet that has power and
transformer cable (black, 4 pins) is
plugged into controlvalve connector
J4 (labeled “POWER”)
4) With transformer plugged into
electrical outlet, use a volt meter to
test the 2 outer pins (furthest left and
furthest right) of connector J4 on the
control valve circuit board. Should be
approximately 15 volts DC. Replace
transformer if defective.
5) Replace circuit board if needed
Troubleshooting (cont.)

15
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ERROR CODE:
CAUSES
SOLUTIONS
1001 –unable to
sense motor
movement
A) Drive motor not
inserted fully to
engage pinion or is
defective
B) Circuit board not
properly snapped
into drive bracket
C) Center reduction
gear reflector dirty
1) Re-insert motor, check for broken wires,
verify motor plugged intoconnector J1
(labeled “MOTOR”) on control valve circuit
board and reset control valve (hold “NEXT”
and “REGEN” buttons for 3 seconds)
2) Re-seat circuit board into drive bracket and
reset control valve
3) Clean reduction gear reflectors (page 20)
1002 –unexpected
motor stall
A) Obstruction in
control valve
B) Main drive gear too
tight
C) Improper voltage
delivered to circuit
board
1) Remove piston and seal assemblies for
inspection and repair or replacement and
reset control valve (hold “NEXT” and
“REGEN” buttons for 3 seconds)
2) Loosen main drive gear and reset control
valve
3) Verify proper voltage is being supplied to
circuit board (see Solution 4 under “Display
is Blank” section, page 14)
1003 –motor ran too
long, cannot find next
cycle position
A) Motor failure during
regeneration
B) Obstruction in
control valve
C) Drive bracket not
snapped in place
properly
1) Re-insert motor, check for broken wires,
verify motor plugged intoconnector J1
(labeled “MOTOR”) on control valve circuit
board and reset control valve (hold “NEXT”
and “REGEN” buttons for 3 seconds)
2) Remove piston and seal assemblies for
inspection and repair or replacement and
reset control valve
3) Re-seat drive bracket assembly and reset
control valve
1004 –motor ran too
long, timed out trying
to reach home
position
A) Drive bracket not
snapped in place
properly
B) Center reduction
gear reflector dirty
1) Re-seat drive bracket assembly and reset
control valve (hold “NEXT” and “REGEN”
buttons for 3 seconds)
2) Clean reduction gear reflectors (page 20)
1006–MAV/SEPS/
NHBP/AUX MAV
motor ran too long
looking for park
position
A) Control valve not
programmed for
ALT oFF
B) Obstruction in
control valve
1) Enter cycle programming leveland verify
second parameter is set to ALT oFF
2) Remove piston and seal assemblies for
inspection and repair or replacement and
reset control valve (hold “NEXT” and
“REGEN” buttons for 3 seconds)
1007–MAV/SEPS/
NHBP/AUX MAV
motor ran too short
looking for park
position
A) Control valve not
programmed for
ALT oFF
B) Obstruction in
control valve
1) Enter cycle programming leveland verify
second parameter is set to ALT oFF
2) Remove piston and seal assemblies for
inspection and repair or replacement and
reset control valve (hold “NEXT” and
“REGEN” buttons for 3 seconds)
Troubleshooting (Error Codes)

16
Copyright ©2023, Franklin Water Treatment,LLC.All Rights Reserved.
Description
PKLX-10
PKLX-15
PKLX-20
PKLX-30
Filter Media Volume, cu. ft.
1.0
1.5
2.0
3.0
Gravel Underbed, lbs.
20
25
30
50
Operating Flow Rate, gpm
Continuous
@ 5 gpm/ft2of media surface area
3
4
5
7
Service
@ 10 gpm/ft2of media surface area
5
8
9
14
Peak
@ 18 gpm/ft2of media surface area
10
14
17
25
Backwash
@ 12 gpm/ft2of media surface area
6.5
9
11
17
Water Usage
Gallons
(Gallons at higher BW flow)
118
158
190
286
Service Pipe Size, in.
Standard
1
1
1
1
Tank Diameter x Height, in.
10 x 54
12 x 48
13 x 54
16 x 65
Minimum Space Required, in.
Width
11
13
14
17
Depth
16
16
17
18
Height
66
60
66
77
Approximate Ship Wt., lbs.
134
167
205
303
(Media Not Included)
Factory default settings: Filtering type, 8 minute backwash, 8 minute rinse, 14 minute
regenerant draw, 3 days between regenerations.
All models include: CV3007 –1” MNPT elbow adapters and QFNCR4-2 –¾” compression
fittings for PEX, CPVC and copper.
SPECIFICATIONS

17
Copyright ©2023, Franklin Water Treatment,LLC.All Rights Reserved.
Component Parts Breakdown

18
Copyright ©2023, Franklin Water Treatment,LLC.All Rights Reserved.
Ref #
Part
Number
Description
A
PKLX-10-VLV-L-BP
Control valve, cover, 6.5 GPM DLFC, less bypass for model PKLX-10
PKLX-15-VLV-L-BP
Control valve, cover, 9.0 GPM DLFC, less bypass for model PKLX-15
PKLX-20-VLV-L-BP
Control valve, cover, 11.0 GPM DLFC, less bypass for model PKLX-20
PKLX-30-VLV-L-BP
Control valve, cover, 17.0 GPM DLFC, less bypass for model PKLX-30
B
D100S-48
Distributor tube, 1" x 48" formodels PKLX-15
D100S-54
Distributor tube, 1" x 54" formodels PKLX-10, PKLX-20
D100S-65
Distributortube, 1" x 65" formodel PKLX-30
C
MTP1054N
10 x 54 mineral tank, natural, base, 2.5" top opening formodel PKLX-10
MTP1248N
12 x 48 mineral tank, natural, base, 2.5" top opening formodel PKLX-15
MTP1354N
13 x 54 mineral tank, natural, base, 2.5" top opening for model PKLX-20
MTP1665N
16 x 65mineral tank, natural, base, 4.0" top opening for model PKLX-30
(Requires SF4821-2 tank bushing adapter for 2.5” valve thread)
D
K05P
KataloxLight, 0.50 cu. ft. pail
E
QC20
1/4" x 1/8" Gravel, 20lbpail formodel PKLX-10
qty 1.25 - QC20
1/4" x 1/8" Gravel, 20lbPail for model PKLX-15
qty 1.5 - QC20
1/4" x 1/8" Gravel, 20lbPail for model PKLX-20
qty 1 –QC50
1/4" x 1/8" Gravel, 50 lb Bag for model PKLX-30
F
CV3006
Bypass valve, less fittings
Component Parts List

19
Copyright ©2023, Franklin Water Treatment,LLC.All Rights Reserved.
Control Valve Breakdown