Puretec Multitrol MUL-E3 Series User manual

User Guide
Multitrol Filtration System
MUL-E3 Series
For correct operation & installation it is essential to observe these instructions.
MAR2018

2 Installation & Operation Manual Copyright © Puretec Pty Ltd 2018
What's Inside
What's Inside
Puretec Customer Service ............................................................................................................................3
Installation Record ............................................................................................................................................4
Before Installation..............................................................................................................................................5
Specications........................................................................................................................................................7
Exploded Diagram..............................................................................................................................................8
Diagram Identication .....................................................................................................................................9
Installation Procedure...................................................................................................................................10
Programming .....................................................................................................................................................14
Start-up.................................................................................................................................................................15
Regeneration......................................................................................................................................................15
Replenishment of Salt Supply ..................................................................................................................16
Type of Salt to Use.........................................................................................................................................16
Brine Tank Clean-Out (Yearly)...................................................................................................................16
Media Replacement........................................................................................................................................16
Bypass Valve Operation - optional accessory .................................................................................17
Troubleshooting Guide..................................................................................................................................18
Warranty...............................................................................................................................................................22

3Copyright © Puretec Pty Ltd 2018 Puretec MUL -E3 User Guide
Introduction
Puretec Customer Service
Thank you for purchasing a Puretec Multitrol Filtration System. Your system is a proven
performer manufactured from only quality materials and components. It will give years
of reliability and trouble free operation if maintained properly.
This user guide is designed for Puretec MUL Water Treatment Systems. Be careful to
ensure the information and illustration is applicable to your particular unit.
Caution: Do not use with water that is microbiologically unsafe or without
adequate disinfection before or aer the system.
Puretec systems are designed to run economically for many years and this is dependant
on the initial installation and periodic maintenance.
Flush system for 5 minutes or more, aer any period of non-use, more than 2 weeks.
Note: For point of entry installations an approved dual check backow prevention device
must be installed.
When line pressure exceeds 500 kPa, a pressure limiting valve is recommended.
Pressures above 875 kPa must have PLV must have a pressure limiting valve installed.

4 Installation & Operation Manual Copyright © Puretec Pty Ltd 2018
Product Information
Model Number
Serial / Batch Number
Purchased from:
Date of Installation
Installer / Plumber Details
Water Analysis Information
Hardness ___________ ppm / mg/L
Iron ___________ ppm / mg/L
Manganese ___________ ppm / mg/L
pH ___________
TDS (Total Dissolved Salts) ___________ ppm / mg/L
Ammonia ___________ ppm
TOC (Tannin) ___________ ppm
Installation Record
For future reference, ll in the following data
Pre-installation

5Copyright © Puretec Pty Ltd 2018 Puretec MUL -E3 User Guide
Before Installation
Professional Installation Required
• Installation requires shutting water o to home, cutting home water supply pipe
and using a welding torch to add piping and ttings. Specialized tools and skills are
required. Not a do-it-yourself type of project.
Make Sure Your Water Has Been Thoroughly Tested
• An analysis of your water should be made prior to the selection of your water
conditioning equipment. Your dealer will generally perform this service for you, and
may send a sample to the factory for analysis and recommendations. Enter your
analysis information on page 4 for your permanent record.
• The Multitrol System is designed to reduce tannis, iron, manganese and hardness.
Contact Puretec when selecting model and regeneration settings for best results.
Install Water Conditioning Equipment Correctly
• Select the location of your Multitrol system with care. Various conditions which
contribute to proper location are as follows:
• Install as close as possible to a drain
• Install in correct relationship to other water treatment equipment. Contact Puretec
for assistance.
• Install the Multitrol system in the supply line BEFORE the water heater.
Temperatures above 110°F (43.3°C) will damage the system and void the warranty.
• DO NOT install the Multitrol system in a location where freezing temperatures occur.
Freezing may cause permanent damage and will also void the warranty.
• DO NOT install where water hammer conditions may occur without installing an
arrestor
• Allow sucient space around the installation for easy servicing. Provide a non-
switched 240V power source for the control valve.
Pre-installation

6 Installation & Operation Manual Copyright © Puretec Pty Ltd 2018
• The control valve, ttings and/or bypass are designed to accommodate minor plumbing
misalignment but are not designed to support the weight of a system or the plumbing.
• Do not use Vaseline, oils, other hydrocarbon lubricants or spray silicone anywhere. A
silicon lubricant may be used on the black o-rings but it is not necessary.
• Do not use pipe dope or other sealants on threads. Teon tape is the preferred sealant
but is not necessary on the nut connection or caps because of o-ring seals.
• All plumbing should be done in accordance with local plumbing codes. The pipe size for
the drain line should be a minimum of ⅝”.
• Avoid getting primer and solvent cement on lter system.
• Install grounding strap on metal pipes if required.
• Ensure the system is protected against high pressure and extreme temperatures.
Facts to Remember While Planning Your Installation:
• All installation procedures MUST conform to local plumbing codes.
• If lawn sprinkling, a swimming pool, or geothermal heating/cooling or water for other
devices/activities are to be treated by the Multitrol system, a larger model MUST be
selected to accommodate the higher ow rate plus the backwashing requirements of
the Multitrol system. Contact Puretec for assistance.
WARNINGS
Pre-installation
Note: Solder joints must be done prior to connecting to the valve ttings. Leave at least 6”
between the tting and solder joints when soldering pipes. Failure to do this could cause
heat damage to the ttings.
This should be carried out by a qualied tradesman.

7Copyright © Puretec Pty Ltd 2018 Puretec MUL -E3 User Guide
Specications
Specications
Operating pressure min/max 140-875 kPa
Operating temperature min/max () 2-48 °C
Electrical connection 240V / 50 Hz
Inlet/outlet connection 25mm
Drain connection ⅝”
Overow connection ⅝”
MUL35-E3 MUL50-E3 MUL70-E3
Width (mm) (W) 245 mm 260 mm 300 mm
Height (mm) (H) 1400 mm 1570 mm 1525 mm
Maximum salt stor-
age capacity 125 kg 125 kg 125 kg
(W)
430
900
(H)

8 Installation & Operation Manual Copyright © Puretec Pty Ltd 2018
Parts Identication
Exploded Diagram
2
1
3
4
5
7
6
10
9
11
12
13
14
15
8

9Copyright © Puretec Pty Ltd 2018 Puretec MUL -E3 User Guide
Parts Identication
Outlet 1"
Control Panel
Inlet 1"
Diagram Identication
Item Part no Description
1 - Presure tank
2 WTD2030 Riser pipe
3WTD1010 Top screen
4WTD3030 Pressure tank UV sheild
5 WTV4000 Automatic valve
6 WTB5070 Plastic tting kit, elbow
7 WTB2100 Valve Cover
8 - Drain tube assembly
9 WTV5135 Transformer, suit auto valve
Item Part no Description
10 WTV5000 Bypass assembly (purchased
Separately
11 KTV6SVC ⅜" Black tubing
12 KEC66 ⅜" Elbow connector
13 WTB4190 Brine pickup assembly
14 WTB2200 Brine tank
15 WTB5150 2 Peice overow
Brine ⅜”
Drain ⅝”

10 Installation & Operation Manual Copyright © Puretec Pty Ltd 2018
⅝" tubing for drain and
overow (refer to page33)
Bag of salt (refer to page
16 for the type of salt to
be used)
Installation Procedure
Ensure water has been tested, Input values into Table on page 4 and the
analysis has been inspected by Puretec.
3
Water Analysis Information
Hardness ___________ ppm / mg/L
Iron ___________ ppm / mg/L
Manganese ___________ ppm / mg/L
pH ___________
TDS (Total Dissolved Salts) ___________ ppm / mg/L
Conductivity ___________ EC / uS/cm
Chloride ___________ ppm / mg/L
Sodium ___________ ppm / mg/L
130
0.3
0.1
7
275
404
121
96
✓
✓
Customer Service Helpline
1300 140 140 (AU) 0800 130 140 (NZ)
✓
Extra items required:
2
Unpack the equipment. Locate and identify the parts as shown below:
1
Forcorrect operation & installation it is essential to observe these instructions.
User Guide
Multitrol Filtration System
MUL-E3 Series
Water Soener
User guide
Installation
Drain Tube assembly
(2m of ⅜" tubing)
Bypass assembly
(purchased separately)
Media

11Copyright © Puretec Pty Ltd 2018 Puretec MUL -E3 User Guide
Position the Multitrol System on a level surface.
Environmental conditions:
Operating temperature: 2-48°C
Water conditions
Temperature: 1-50°C
Pressure: 140-875 kPa
4
Installation
Media Installation
The Media has been shipped separatly to avoid damage in transit.
The length of the internal riser pipe is pre-set and does not need adjustment.
1. Position the system on a at surface close to a drain or a properly
trapped outlet, in a position when the system can service all lines
requiring treated water. The system should be placed far enough
away from any water heaters to avoid any hot water backow
into the system. A weatherproof powerpoint and surge protector is
recommended.
2. Plug or cover the top end of the riser pipe in the tank making sure no
media can enter the tube.
3. Ensure that the riser pipe is sitting in the cradle at the base of the tank.
Then using a wide mouth funnel, place the media in the tank as per the
numbering on the buckets. (Buckets are labelled 2, 3 etc. Put No. 2 in
rst, followed by 3, etc. as required.)
Note: vessel and head are always labelled as No.1.
4. Remove the plug or cover from the riser pipe making sure you do not li
the riser pipe. Top up tank with water. Screw valve onto the tank (hand
tight is usually sucient), making sure the distributor tube is properly
inserted into the valve.
5

12 Installation & Operation Manual Copyright © Puretec Pty Ltd 2018
Installation
Connecting the Multitrol System. Connect the Multitrol System to main plumbing.
Do not solder brass adapters while they are inserted in the control module.
7
Apply plumbing tape to
the nipple as required.
Connect the pipe work to the
valve, refer to page 9 for
identication.
FOLLOW LOCAL
PLUMBING CODES
Installing the Bypass (purchased separately)
Uninstall the plastic ttings
by turning the knob coun-
terclockwise
Connect the bypass assembly followed
by the plastic ttings. Hand tighten the
knobs, do not overtighten.
Refer to page 17 for bypass operation
6

13Copyright © Puretec Pty Ltd 2018 Puretec MUL -E3 User Guide
Installation
Programming
6.1 Plug into an uninterrupted electrical outlet.
Note: All electrical connections must be connected accordingly to local codes.
6.2 Proceed to ‘Programming’ section
11
Connecting the drain line. Locate the 300mm drain tube and attach to the drain
connection, refer to page 9 for identication of the drain port.
Connecting the overow
Connecting brine line
8
10
9
Connect tubing onto the 5/8” overow
tting (tubing not supplied) and run the
line to the drain. Do not connect the
overow into the drain line, as it must
be a direct and separate line to the
drain. Allow an air gap as per the drain
line. Make sure the drain is not higher
than the overow.
Locate Elbow Fitting in the Brine Tank, remove black tubing and dispose. Connect 2m
length of 3/8 black tubing between Brine Line and Elbow Fitting.
(refer to diagrams in step 8 and 10)
Connect extra tube (tubing not supplied)
onto the 5/8” drain line from the valve
to the drain. Ensure the drain line is not
kinked. The line must not travel more
than 2.4m up from the valve, otherwise
increase the diameter of the drain line.
Connect drain and overow to sewer or
stormwater, whatever is approved by local
authority for salty discharge water.
Ensure drain line has an adequate air gap
of 2 times the pipe diameter or 25mm,
whichever is larger.
OVERFLOW
BRINE
BRINE DRAIN

14 Installation & Operation Manual Copyright © Puretec Pty Ltd 2018
Programming - E3
Programming
Step 1: Press NEXT and ▲ simultaneously for 5 seconds.
Step 2: Hardness : Set the amount of hardness in grains of hardness
as calcium carbonate per gallon using the ▲ or ▼ buttons. The
default is 13 with value ranges from 1 to 150 in 1 grain increments.
The conversion factor to mg/l or ppm is 17 (divide mg/l or ppm by 17
= grains/gallon).
Step 3: Day Override: When gallon capacity is set to o, sets the
number of days between regeneration. When gallon capacity is set
to AUTO or to a number, sets the maximum number of days between
regeneration. If value set to ‘OFF’ regeneration initiation is based
solely on gallons used. If value is set as a number (allowable range
from 1 to 28) a regeneration initiation will be called for on that
day even if sucient number of gallons were not used to call for a
regeneration. Set Day Override using ▲ or ▼ buttons:
• Number of days between regeneration (1 to 28); or
• ‘OFF’
Press NEXT to go to step 4. Press REGEN to return to previous step.
OTHER SETTINGS
SET TIME OF DAY
The user can also set the time of day. Time of day should only need to
be set aer expended power outages or when daylight savings begins
or ends. If an extended power outage occurs, the time of day will ash
on and o which indicates the time of day should be reset.
Step 1: Press SET CLOCK
Step 2: Current Time (hour): Set the hour of the day using
▲ or ▼ buttons.
Press NEXT to go to step 3.
Step 3: Current Time (minutes) : Set the minutes of the day using
▲ or ▼ buttons. Press NEXT to exit Set Clock.
Press REGEN to return to the previous step.
GENERAL OPERATION
When the system is operating one of two displays will be shown.
Pressing NEXT will alternate between the displays. One of the displays
is always the current time of day. The second display is one of the
following: days remaining or gallons remaining. Days remaining is the
number of days le before the system goes through a regeneration
cycle. Capacity remaining is the number of gallons that will be treated
before the system goes through a regeneration cycle. The user can
scroll between the displays as desired.
If the system has called for a regeneration that will occur at the
present time of regeneration, the words REGEN TODAY will appear on
the display.
When water is being treated (i.e. water is owing through the system)
the word ‘Soening’ or ‘Filtering’ ashed on the display if a water
meter is installed.
SET HARDNESS
1
2
SET
CLOCK REGEN
NEXT
SET
CLOCK REGEN
NEXT
SET HARDNESS
REGEN
DAY
3
SET
CLOCK REGEN
NEXT
DAY
GAL
REGEN
TODAY
SET
CLOCK REGEN
NEXT
TIME
SOFTENING P M
REGEN
TODAY
OR
SET
CLOCK REGEN
NEXT
REGEN TODAY will
ash if a regen-
eration is expected
‘Tonight’. SET
CLOCK REGEN
NEXT
REMAINING
CAPACITY REMAINING
SOFTENING
SET TIME
PAM
SET
CLOCK REGEN
NEXT
PAM
SET TIME
1
2 3
SET
CLOCK REGEN
NEXT
SET
CLOCK REGEN
NEXT
continued on the next page

15Copyright © Puretec Pty Ltd 2018 Puretec MUL -E3 User Guide
If the power goes out for less than two hours, the system will automati-
cally reset itself. If an extended power outage occurs, then time of day
will ash on and o which indicates that time of day should be reset. The
system will remember the rest.
POWER LOSS
REGENERATION MODE
Typically a system is set to regenerate at a time of low water usage. An
example of a time with low water usage is when a household is asleep. If
there is a demand for water when the system is regenerating, untreated
water will be used.
When the system begins to Regenerate, the display will change to include
information about the step of the regeneration process and the time
remaining for that step to be completed.
The system runs through the steps automatically and will reset itself to
provide treated water when the regeneration has been completed.
Step 4: Next Regeneration Time (hour): Set the hour of the day for
regeneration using ▲ or ▼ buttons. AM/PM toggles aer 12. The
default time is 2:00 am. Press NEXT to go to step 5. Press Regen to return
to previous step.
Step 5: Next Regeneration Time (minutes): Set the minutes
of day for regeneration using ▲ or ▼ buttons. The default setting is ‘00’
Press NEXT to exit Installer Displays/Settings.
Press REGEN to return to previous step.
BACKWASH
REGEN
MANUAL REGENERATION
Sometimes there is a need to regenerate the system sooner than when
the system calls for it, usually referred to as a manual regeneration. There
may be a period of heavy water usage because of guests or a heavy
laundry day.
To initiate a manual regeneration at the preset delayed regeneration time,
when the regeneration time option is set to ‘NORMAL’ or ‘NORMAL + on
0’, press and release ‘REGEN’. The words ‘REGEN TODAY’ will ash on the
display to indicate that the system will regenerate at the present delayed
regeneration time. If you pressed the ‘REGEN’ button in error, pressing the
button again will cancel the request.
Note: If the regeneration time option is set to ‘on 0’ there is no set
delayed regeneration time so ‘REGEN TODAY’ will not activate if ‘REGEN’
button is pressed.
To initiate a manual regeneration immediately, press and hold the ‘REGEN’
button for three seconds. The system will begin to regenerate immedi-
ately. The request cannot be cancelled.
Note: For soeners, if brine tank does not contain salt, ll with salt and
wait at least two hours before regenerating.
CAPACITY REMAINING
GAL
REGEN TODAY will
ash if a regen-
eration is expected
‘Tonight’.
SET
CLOCK REGEN
NEXT
REGEN
TODAY
AM
REGEN
SET TIME
RETURN TO NORMAL MODE
AM
REGEN
SET TIME
4 5
SET
CLOCK REGEN
NEXT SET
CLOCK REGEN
NEXT

16 Installation & Operation Manual Copyright © Puretec Pty Ltd 2018
Now programming is completed (if required) you are ready to start the system.
1. Fill the brine tank with ‘water soener’ salt to approximately half full. (salt not included).
This will require approximately 60kg (this is only required initially).
2. Add approximately 15 litres of water to the salt in the brine tank. This is only required
for the initial setup.
Note: The water level will drop signicantly aer the rst backwash, and may
disapppear below the salt line. This is normal and no extra water will be required.
3. Open the nearest tap downstream of the lter system (aer the lter system).
4. Allow water to ow through the system slowly, and allow all air to escape out of the
closest tap. Wait until the water is owing out of the tap and then increase the ow
slowly up to full ow. Allow to run for 5 - 10 minutes.
5. Close the opened tap and check for leaks.
6. Conduct a full manual regeneration.
7. Your system is ready for use.
MODEL CAPACITY OF SYSTEM (L) WITH DIFFERENT HARDNESS LEVELS
100 mg/L 200 mg/L 300 mg/L 400 mg/L 500 mg/L
MUL35-E3 1967 983 655 491 393
MUL50-E3 2753 1376 917 688 550
MUL70-E3 3933 1966 1311 983 786
Regeneration
Start-up
Operation
E3 Valve (Regeneration Time: 90 mins)
This will adjust regeneration automatically once you have entered the correct hardness level
in the programming section.

17Copyright © Puretec Pty Ltd 2018 Puretec MUL -E3 User Guide
Maintenance
Replenishment of Salt Supply
The salt storage capacity of the brine tank is approximately 100 kg. During each regeneration
a small amount of salt is consumed, thus requiring periodic replenishment for a continuous
supply of treated water (the frequency and salt dosage level is dependent on the regeneration
schedule).
We recommend to maintain the salt level in the brine tank to 1/2 to 2/3 full. The water level in
the brine tank is maintained automatically and does not require manual intervention. NOTE: The
water level is usually below the salt level & therefore cannot be seen (this is not a problem).
Always replenish salt before the supply is exhausted.
Note: No extra water is required when topping up the salt level.
Type of Salt to Use
Any type of water soener salt may be used, but for best results, we recommend using coarse
solar salt called "water soener salt" or alternatively "pool salt".
Brine Tank Clean-Out (Yearly)
To help prevent service problems the brine tank should be emptied and ushed out with a
garden hose, when dirt and other insolubles accumulate on a regular basis. Shut o water inlet
supply and depressurize the system before service.
Steps to follow:
1. Disconnect brine line at either end.
2. Turn brine tank upside down and discard old salt.
3. Rinse out with a garden hose.
4. Reconnect brine line.
5. Before loading salt, using a pail or garden hose, add approximately 15 Litres of water
to the brine tank.
Media Replacement
Resin ordering code: RMK-MUL35 for MUL35-E3, RMK-MUL50 for MUL50-E3 and RMK-
MUL70 for MUL70-E3.
Customer Service Helpline at 1300 140 140 (AU) and 0800 130 140 (NZ) for more details.
The nuts and caps are designed to be unscrewed or tightened by hand or with the special plastic
wrench. If necessary a pliers can be used to unscrew the nut or cap. Do not use a pipe wrench
to tighten or loosen nuts or caps. Do not place screwdriver in slots on caps and/or tap with a
hammer.

18 Installation & Operation Manual Copyright © Puretec Pty Ltd 2018
SUPPLY WATER
EXITS
SUPPLY WATER
ENTERS NO WATER EXITS
SUPPLY WATER
IS SHUT OFF
FROM THE HOUSE
& THE VALVE
‘TREATED’ WATER
EXITS
SUPPLY WATER
ENTERS
SUPPLY WATER
EXITS
SUPPLY WATER
ENTERS
OF F
OF F
OF F
OF F
Normal Operation Bypass Operation
Diagnostic Mode Shut Off Mode
Bypass Valve Operation - optional accessory
Bypass operation

19Copyright © Puretec Pty Ltd 2018 Puretec MUL -E3 User Guide
Troubleshooting Guide
Troubleshooting Guide
‘Dry’ Reset Procedure
From time to time, the valve may dis-
play an error code for various reasons.
The first troubleshooting step is to
perform a ‘dry’ reset.
Remove the faceplate, opening the tabs on either side of the valve. This will expose the
Power Circuit board with a number of wires connected.
On the bottom right hand corner is a 4 pin adaptor labelled ‘12VAC PWR’, disconnect the
adaptor and reconnect after 5 seconds. The valve will then whir twice, and should return
to the normal screen.
If the error message is still present, refer to the troubleshooting guide
PROBLEM POSSIBLE CAUSE SOLUTION
No display/blank screen on valve A. Transformer not connected A. Connect transformer
B. No power at outlet/source B. Use working outlet/repair outlet
C. Switched outlet/improper voltage C. Use uninterrupted outlet/ensure source is
delivering proper voltage
D. Dead battery D. Replace battery (CR2032)
E. Defective transformer E. Replace transformer
F. Defective PC Board F. Replace PC Board
Valve does not display correct time of day A. Power outage(s) A. Reset time of day, replace battery (CR2032)
B. Time of day set incorrectly B. Reset to correct time of day
C. Switched outlet C. Use uninterrupted outlet
D. Tripped breaker switch D. Reset breaker switch
E. Defective PC Board E. Replace PC Board
Valve regenerates at wrong time of day A. Power outage(s) A. Reset time of day, replace battery (CR2032)
B. Time of day set incorrectly B. Reset to correct time of day
C. Time of regeneration set incorrectly C. Reset regeneration time
D. Control valve set for immediate regen-
eration
D. Contact Puretec for assistance
E. Control valve set for delayed and/or imme-
diate regeneration
E. Contact Puretec for assistance
Time of day flashes on and off A. Power outage(s) A. Reset time of day, replace battery (CR2032)
and then perform a ‘dry’ reset
Valve does not regenerate when performing a
manual regeneration
A. No power to valve A. Refer to ‘No display/blank screen on valve’
B. Broken drive gear or drive cap assembly B. Replace drive gear or drive cap assembly
C. Broken piston rod C. Replace piston rod

20 Installation & Operation Manual Copyright © Puretec Pty Ltd 2018
Troubleshooting Guide
Troubleshooting Guide
PROBLEM POSSIBLE CAUSE SOLUTION
Valve does not regenerate automatically, but
does when performing a manual regeneration
A. Bypass valve in bypass position/faulty A. Turn bypass to normal operation/replace
bypass
B. Meter loosely/not connected to PC Board B. Connect meter into the three pin connector
labelled METER on PC Board
C. Restricted/stalled meter turbine C. Remove meter and check for rotation or
foreign material
D. Incorrect programming D. Contact Puretec for assistance
E. Defective meter E. Replace meter
F. Defective PC Board F. Replace PC Board
Hard/Untreated water delivered to service A. Bypass valve is in bypass operation/faulty A. Turn bypass to normal operation/replace
bypass
B. Media is exhausted due to high water usage B. Check program settings or diagnostics for
abnormal water usage
C. Fouled media bed C. Clean/replace media
D. Meter not registering/faulty D. Remove meter and check for rotation or
foreign material/replace meter
E. Water quality fluctuation E. Test water and contact Puretec for assis-
tance
F. No regenerant or low level of regenerant F. Refill regenerant tank
G. Valve fails to draw regenerant G. Refer to 'Valve fails to
draw in regenerant'
H. Insufficient regenerant level in regener-
ant tank
H. Contact Puretec for assistance
I. Leak from seal/spacer stack assembly I. Clean/replace spacer stack assembly
Control valve uses too much regenerant A. Incorrect refill setting A. Contact Puretec for assistance
B. Incorrect program setting B. Contact Puretec for assistance
C. Valve regenerating frequently C. Check for leaking fixtures or system
undersized.
Regenerant being delivered to service A. Low water pressure A. Check incoming water pressure – water
pressure must remain at minimum of
25 psi
B. Incorrect injector size B. Replace injector with correct size for
application
C. Restricted/kinked drain line C. Check drain line for restrictions or debris, or
unkink drain line