Aquatek ATWS Series Manual

Operation & Maintenance Manual
United Water Inc | 1-877-414-PURE(7873) | www.unitedwaterinc.com | [email protected]
ATCWS | Atws | ATWS-C/CC | ATWS-HI | ATnWS | ATTWS

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Table of Contents
Introduction 4
Meet Your Water Softener 4
Installation Guide 8
Installation Diagram 10
System Start-Up 11
Programming Guide 12
Manual Regeneration 14
The Brine System 15
Parts Breakdown 17
Trouble Shooting Guide 21

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***ATTENTION***
ATWS System Specifications & Warnings
System Specifications
Water pressure: 40 psi minimum 100 psi
Maximum Water Temperature: 40°F to 110°F
Electrical Requirements:
Supply Voltage: 120V
Supply Frequency: 60Hz
Output Voltage: 12V AC
Output Current: Maximum 3.0 Amps
Water Meter:
Pipe Size: 3/4”-1”
Accuracy: ± 5%
Minimum Flow : 0.25 GPM
Control Valve to Tank Connection: 2.5”-8UN Control
Valve Distributor Pipe Connection: 1”
Circuit Board Memory: Non-volatile EEPROM (Electrical Erasable Programmable Read Only Memory)
Compatible with the following typical concentrations of regenerant chemicals: Sodium Chloride, Potassium
Chloride, Potassium Permangenate, Sodium Bisulfite, Chlorine and Chloramines
***WARNINGS***
LThe control valve and fittings are not designed to support the weight of the system or the plumbing.
LDo not use Vaseline, oils, other hydrocarbon lubricants or spray silicone anywhere. A silicone lubricant
may be used on black O-rings.
LHydrocarbons such as kerosene, benzene, gasoline, etc., may damage products that contain O-rings
or plastic components. Exposure to such hydrocarbons may cause the products to leak. Do not use the
product(s) contained in this document on water supplies that contain hydrocarbons such as kerosene,
benzene, gasoline, etc.
LThe water meter should not be used as the primary monitoring device for critical or health effect appli-
cations.
LDo not use pipe dope or other sealants on threads. Teflon tape is recommended to be used on all
threads. Use of pipe dope may break down the plastics in the control valve.
LThis system is not intended for use where water is microbiologically unsafe or with water of unknown
quality.
LWARNING! Electrical Shock Hazard! Prior to servicing equipment, disconnect power supply.
LIf incorrectly installed, operated or maintained, this product can cause injury or property damage. Those
who install, operate, or maintain this product should be trained in its proper use and should read the
entire manual before attempting to install, operate, or maintain this product.
LNOTICE This system is not intended for use where water is microbiologically unsafe or with water of un-
known quality.

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Please Read Manual First
Before you operate your Aquatek Water Softener, read this manual to become familiar with the device and
its capabilities.
Installation or maintenance done on this system by an untrained service person can cause major damage
to equipment or property damage. Not adhering to the recommended service/maintenance can cause
damage to equipment or property damage.
Long term, successful operation of Aquatek ATWS water softeners depends upon the care and attention it
receives. Ordinarily, water treatment systems will provide uniform performance after the initial start-up pe-
riod and operation is stable. Gallonage delivery between regenerations and treated water purity usually do
not vary appreciably over the life of the resins--as long as the mineral content of the incoming water does
not change.
This manual is intended to be a practical reference guide for all operating personnel. In view of the fact that
system performance can change very dramatically throughout the year, a discussion of "ion exchange"
theory is included in addition to basic information relative to equipment operation and regeneration pro-
cedures. Thorough understanding of the simple chemical reactions will help to determine if some equip-
ment malfunction has occurred, or if the system is simply responding to changing water conditions. For this
reason, all operation and supervising personnel are encouraged to study PRINCIPLES OF ION EXCHANGE IN
THE SOFTENING PROCESS (pg. 6) which defines terminology and the simple chemistry associated with this
system.
Introduction
Cabinet Systems
Aquatek ATCWS Cabinet Water Softe-
ners are a single, space saving, self-
contained units. Inside the cabinet you
will find most of the standard com-
ponents of a two tank system. Inside
the Cabinet you will find the Control
Valve, Mineral Tank and a self contai-
ned Brine System. All of the processes
and programing will be exactly the
same as the Two Tank Systems on the
follwing page (pg. 5).
Meet Your Water Softener

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Two Tank Systems
All Aquatek Two Tank Water Softeners are comprised of three
primary components: (A) Control Valve, (B) Mineral Tank, & (C)
Brine Tank.
A. Control Valve: Your control valve automatically performs 3
primary operations which are commonly referred to as cycles.
These operations/cycles are (1)Service, (2)Regeneration, & (3)
Brine Refill.
1. Service: During service, raw water passes through the inlet of
the control valve and down-flows through the resin bed where
the hardness is removed, the newly softened water flows up
the distributor pipe and exits through the outlet of the control
valve and into your home. Service flow continues until the pre-
set gallonage has been used which then initiates the regener-
ation process.
2. Regeneration: The regeneration cycle can be broken down
into 4 parts:
A. Backwash (~10 minutes) Raw water is directed down through
the distributor pipe flowing through distribution system at the
bottom of the tank which then travels upward through the res-
in bed. This up-flow expands the resin bed scrubbing the beads
and washing away any accumulated dirt or sediment out of the
system into the drain.
B. Brine & Slow Rinse (~ 60 minutes)The salt-brine solution is
pulled from the bottom of the brine tank and into the mineral
tank where it passes through the resin bed restoring its ability to
remove hardness from your water. The brine then flows up distrib-
utor pipe and out of the system into the drain.
C. SECOND BACKWASH (~10 minutes) Water flow is the same as
the first backwash. This step in the regeneration process helps
to remove iron that was released from the resin during the Brine
cycle.
D. FAST RINSE (~10 minutes) Raw water is brought through the inlet
of the control valve and down through the resin bed, then up the
distributor pipe and exits the system into the drain. This removes
all remaining brine from the resin bed, completes the regenera-
tion cycle and initiates the Brine Refill.
3. BRINE REFILL: Fresh water flows through the brine line and into
the brine tank refilling it to the preset level. Now additional salt
is being dissolved to provide the salt-brine solution that will be
needed for the next regeneration cycle.
A Control Valve
B Mineral Tank
C Brine Tank
B. The Mineral Tank: The Mineral Tank contains Ion Exchange Resin (*Note* ATWS-C/CC Carbon Combo
Softeners also includes an upper shelf of carbon media for chlorine taste/odor reduction & ATWS-HI, ATNWS
& ATTWS contain specialized resin beds to provide their added treatment abilities). The number of gallons
of hard water that can be treated by the resin before it needs regeneration is called the “capacity” of the
resin column, and depends upon the amount of hardness minerals in each gallon of water (expressed as
grains per gallon) and upon the amount of regenerant brine solution (expressed as pounds of salt) passed
through the resin column during regeneration.
C. The Brine Tank: The Brine Tank consists of a salt storage container and brine valve assembly. The salt
storage container holds the salt that is used to make the regenerant salt-brine solution. The brine valve
assembly limits the amount of water that is returned to the salt storage tank during the brine refill cycle. Be-
cause a predetermined amount of salt is dissolved with each brine refill cycle, the salt must be periodically
replenished in order to maintain efficient operation. see page *** for more on The Brine System

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PRINCIPLES OF ION EXCHANGE IN THE SOFTENING PROCESS
1. ION EXCHANGE SOFTENING PROCESS
In order to understand what happens in the ion exchange softening process, it will first be necessary
to understand the meaning of the terms that are used in the explanation. HARD WATER, CATION EX-
CHANGER, and BRINE are therefore defined below and then used to show how the ion exchange pro-
cess works.
A. Hard Water - All natural waters contain much the same dissolved impurities, but in widely varying
amounts. There are always enough ANIONS (-) present to balance the CATIONS (+), but anions have
no effect on the ion exchange softening process. Water will be HARD, if it contains large amounts of
Calcium (Ca++) and/or Magnesium (Mg++) ions.
B. Brine - water in which SALT has dissolved. SATURATED brine contains as much salt as it is possible
to hold in solution (approx. 26% to 27%).
SALT - SODIUM CHLORIDE (NaCl). When dissolved in water it splits up (ionizes) into Sodium (Na+) ions
and Chloride (Cl-).
SATURATED BRINE - contains a very great number of Na+ and Cl- ions (concentration is over 200,000
ppm). When used to regenerate a CATION EXCHANGER, only the Sodium ions (Na+) are put to use.
The Chloride ions (Cl-) do not work in the process.
C. Cation Exchanger - a solid material that has a very large number of “REACTION POINTS”. These
reaction points have NEGATIVE (-) electric charges, and are able to attract and hold CATIONS, which
are POSITIVELY (+) charged (much the same way as the way opposite poles of a magnet attract
each other).
D. The Softening Process - When Ca++ or Mg++ ions have occupied most of the reaction points,
hardness will begin to slip through the bed in increasing amounts. This rise in hardness in the effluent
is an indication that the effective capacity of the CATION EXCHANGER has been reached. The CATION
EXCHANGER must then be regenerated to restore it to its original condition.
E. Regeneration - A solution of NaCl is applied to the CATION EXCHANGER at a controlled rate and the
softening process is reversed. The Ca++ and Mg++ ions are driven off of the CATION EXCHANGER and
replaced with Na+ ions. At the end of regeneration, the “spent” brine is rinsed away and the REGEN-
ERATED CATION EXCHANGER, with its reaction points again occupied by sodium ions -is again able to
soften HARD WATER.
2. QUALITY OF EFFLUENT
If the hard water contains less than 500 ppm (about 30 grains) of Calcium, Magnesium and Sodium
salts, all expressed as CaCO3, it will be found that the effluent from a softener will contain an average
of not more than 30 ppm actual total hardness (Zero hardness by the SOAP TEST). However, as the
total CATION concentration in the hard water increases above 500 ppm, the average hardness in the
effluent will also increase proportionately.
The reason for this is that when the sodium salt - those present in the raw water plus those formed by
the exchange reactions - are present in high enough concentrations, they cause a “back-regenera-
tion” effect at the same time as the softening process is taking place. This effect prevents as complete
a removal of calcium and magnesium as would otherwise be possible.
It is often possible to reduce the average hardness in the effluent below normally expected concentra-
tions, by using a greater amount of salt than usual for regeneration.
Normal Softening Cycle - At the start of a normal softening cycle, the hardness in the effluent drops
rapidly as the residue of hardness ions left in the bed at the end of the rinse are forced out. The effluent
hardness reaches a certain minimum value and remains at approximately this concentration for the
major part of the softening run.

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2.3 CAPACITY OF ION EXCHANGER
The capacity for the removal of calcium and magnesium depends mainly upon the type of ion ex-
changer that is used. It is further influenced by the amounts of hardness and sodium ions in the raw
water, and by the amount of salt used for regeneration.
A. Raw Water - The effect of the amounts of hardness and sodium ions in the raw water, is expressed
in terms of COMPENSATED HARDNESS. The hardness of the raw water is considered to be greater than
it actually is for capacity determinations, whenever: (a) the total hardness is greater than 400 ppm
(as CaCO3), or (b) the sodium salts are over 100 ppm as (CaCO3). This “greater-than-actual” hard-
ness is referred to as COMPENSATED HARDNESS.
B. Salt Dosage - The capacity that will be obtained from a cation exchanger is also determined by
the amount of salt used during regeneration. The Kilograins (kgr) of hardness that can be removed
by each cubic foot of ion exchanger between regenerations increases as more salt is used for re-
generation. At the same time, the efficiency of salt usage decreases with the higher regenerant dos-
ages. That is, a greater number of Kilograins of hardness are removed for each pound of salt used at
the lower salt dosages, (and consequently, at the lower capacities). Thus, greater economy may be
obtained at the expense of the number of gallons of water softened between regenerations.
3. NORMAL OPERATOR RESPONSIBILITIES
Long term, reliable system performance depends upon how conscientiously the equipment is operat-
ed and maintained. Operator responsibilities to assure operation should include the following recom-
mended practices:
A WORD OF CAUTION -- DON’T ARBITRARILY MAKE CHANGES, IF YOU WISH TO MAINTAIN
EFFICIENT REGENERATIONS.

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Installation Guide
Pre-Installation Checklist
1. A standard electrical outlet (120V/160Hz) must be located within 12’ of installation site.
2. A functioning floor drain, washer sand pipe or suitable location for waste water discharge must be
located within 20’ of installation site.
a. All plumbing should be done in accordance with local plumbing codes. The pipe size for the drain
line should be a minimum of 1/2”. Backwash flow rates in excess of 7 gpm or length in excess of 20’
require 3/4” drain line.
3. A working pressure reducing valve must be installed on the inlet water line that supplies the water
softener.
4. (Note: The warranty is void if the system is exposed to water pressure in excess of 100 psi.)
5. Important: Protect your water softener and the entire drainline from freezing temperatures. The
temperature at the location of the water softener system should never be below 40° F
WARNING! DANGER: If your unit should freeze, do not attempt
to disassemble it. Call us first 877-414-PURE
Installation
1. Floor Space: Make sure the floor space that has been selected to install the water softener is clean
and on a level surface.
2. Leveling the System: Mineral are fitted with an adjustable leveling base, if tank is not vertical/
straight lift tank 1-3 inches off the floor and gently release tank back on to the floor (repeat until stright
up and down). If the floor beneath the salt container is not level, do not use shims or spacers to level
the salt container. A platform that supports the entire bottom surface of the salt container must be
used.
3. What to Bypass: A typical installation would include bypassing the outside hose bibs. The cold water
feeding the kitchen sink may or may not be bypassed depending upon preference.
4. Connection Kit: The standard connection kit supplied with the water softener will be a 1” plastic el-
bow connection kit. (See Figure 1) Other connection kits are available.
5. Plumbing Preparations Optional Brass Connection Kit: Unscrew the two plastic nuts (#1) and pull
on the two brass connectors (#4) to remove them from the bypass assembly. Next remove the white
plastic rings (#2) and the O-rings. (#3) See Figure2
• Solder at least 6” of pipe to the brass connectors before reassembly. (See Figure 2)
• After soldering is complete, cool the pipe and connectors. Slide the plastic nuts (#1) over the brass connectors (#4). Place
the white plastic split rings (#2) into the grooves closest to the end of the brass connectors (#4). Reassembly the connection
kit onto the bypass assembly.
Warning: When assembling the installation-fitting package (inlet and outlet), connect the fitting to the plumbing system first
and then attach the nut, split ring and O-ring. Heat from soldering or sol- vent cements may damage the nut, split ring or o-
ring. Solder joints should be cool and solvent cements should be set before installing the nut, split ring and O-ring. Avoid getting
primer and solvent cement on any part of the O- rings, split rings, bypass valve or control valve.
6. Plumbing: When connecting the water softener to the existing plumbing, make sure the inlet water
is connected to the inlet of the softener. Arrows on the valve body indicate direction of flow. Make sure
the bypass valves are in the correct position See Figure 3.
Note: All plumbing should be done in accordance with local plumbing codes.
Warning: The control valve, fittings and/or bypass are designed to accommodate minor plumbing mis-aligments
but are not designed to support the weight of a system or the plumbing.

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Fig. 1
Installation CONT.
7. Locate Polytube Insert: Now that the water softener is connected to the existing plumbing, the drain
line may be connected. First, locate and remove the polytube insert (#2) from the gray cable on the
left side of the control valve.
8. Connecting the Drain Line: Slide plastic nut (#3) over the permanent drain tubing and place the
polytube insert (#2) into the end of the drain tubing. Insert the drain tubing into the drain elbow fitting
(#4) and tighten plastic nut (#3) hand-tight plus 1/2 turn with pliers. Caution: Do Not Over-tighten.
(See Figure 4)
9. Drain Line Specs: If the distance from the water softener to the drain is greater than 20’ the drain line
size must be increased to 3/4”. The threads on the drain elbow fitting are 3/4” male NPT and can be
used in lieu of the 1/2” plastic nut and insert. If the drain line must run overhead, the maximum height
of the drain line should not exceed 8’ above the top of the water softener.
10. Air Gap: The drain line must have an approved air gap to prevent the possibility of a cross connec-
tion to the sewer. (See Figure 5)
11. Connecting the overflow line: The brine overflow fitting is located on the outside of the salt contain-
er approximately 12” down from the top. Connect 1/2” drain tubing to the overflow fitting and run it to
the nearest floor drain. This line is a gravity flow line and cannot be run overhead or cannot connect to
a drain that is higher than the overflow fitting.
12. Connecting the brine line: A 3/8” brine line approximately 4’ long is attached to the salt container
and is supplied with the tube insert (#2) in the end of the brine line. (See Figure 6) Unscrew the brine
nut (#3) and slide it over the end of the brine line. Insert the brine line into the brine fitting. (#4) and
tighten the brine nut (#3) hand tight plus 1/2 turn with pliers. Caution: Do Not Over-tighten.
The water softener is equipped with a 15-foot power cord with built-in transformer. Plug the power cord
into a standard (120V 60Hz) electrical outlet. It will take approximately 10 seconds before you will see
the display (this is normal). The water softener is now ready to be programmed
Fig. 2 (optional)
Fig. 3
Fig. 4 Fig. 5
Fig. 6

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Installation Diagram
Below are two typical installation examples: 1. Well Water & 2. City Water. Please reference the flow diagram
and placement of system(s) to ensure your system will be functioning properly.
***Disclaimer*** United Water strongly recommends that each system be installed by a
licensed and knowledgeable professional. Failure to do so could result in property dam-
age, equipment failure and potentially void warranty.
All systems MUST be installed in accordance with local and state plumbing codes.

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System Start-Up
To start-up your Aquatek ATWS Softener begin by placing the by-
pass in the position shown in Figure 1 and adding salt to your brine
tank or cabinet (for ATCWS models) - see page *** for more on The Brine Tank
Next place the control valve of the softener into the Backwash cycle:
• Press and hold the REGEN button (approx. 6 seconds) until
the control valve initiates a regeneration cycle. The softener
is now in the Backwash cycle. An initial burst of air will be
released to the drain. Leave the unit in the Backwash cycle
until the water running to the drain runs clear.
• Next press the REGEN button to advance the controller to
the next cycle. The softener is now in the Brine/Slow Rinse
cycle.
• When the timer begins countdown press the REGEN button
to advance the controller to the next cycle. The softener is
now in the 2nd Backwash cycle.
• When the timer begins countdown press the REGEN button
to advance the controller to the next cycle. The softener is
now in the Fast Rinse cycle. Leave the unit in the Fast Rinse
cycle for at least five minutes.
• After at least five minutes press the REGEN button to ad-
vance the controller to the next cycle. The softener is now in
the Brine Tank Fill cycle. Leave the unit in the Brine Tank Fill
cycle for at least five minutes. To speed up the process, fill
the brine tank with water manually. Fill the brine tank up to
a few inches ABOVE the false bottom, (approx. 6-8 inches).
• After the brine tank has been filled to the proper level
press the REGEN button to advance the controller to the
home position.
To complete the Start-up place bypass in the position shown in Fig-
ure 2. Now your softener should be up and running sending softened
water throughout your home. Please note after starting your water
softener there is typically a delay of three to four days to purge all
the remaining hard water from your home and appliances i.e. wa-
ter heater, pipes etc.
Fig. 1
Fig. 2
***NOTE*** In situtations where there are multiple systems being started/used it is im-
partive that each system be started independently AND place all other systems not be-
ing started in bypass to avoid flushing debris/contaminates across systems

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Programming Guide
Aquatek Water Softener Control
Valve Programming & Operation
During normal operation one of three screens can be displayed. Pressing the NEXT button alternates be-
tween these screens.
Screen 1 - Current Time of Day
Screen 2 - Capacity Remaining in Gallons

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Your control valve has been pre-programmed from the factory with the correct regeneration cycle pro-
gram and cycle times. The gallon capacity between regeneration can be changed by adjusting the water
hardness.
Step 1 - Press the NEXT and the UP Arrow buttons at the same time and hold for 2 seconds.
Step 2 - Raw Water Hardness: Adjust to the correct hardness by pressing the UP or DOWN arrow button. De-
fault setting 20 grains per gallon. Press NEXT to go to Step 3.
Step 3 - Day Override: For all models
EXCEPT ATWS-C/CC (Carbon Combo Softeners) this setting should be
set to 15. For ATWS-C/CC this should be set to 7. Press NEXT to go to Step 4. (Settings may vary for certain installa-
tions)
Step 4 - Regeneration Time: The system regenerates at 2:00 AM. This setting is adjustable. No water should
be used during regeneration. (Typically this is the middle of the night.)
Press NEXT to exit programming.
SET TIME: The time of day should only need to be set after initial installation or after an extended power out-
age. If an extended power outage has occurred, the time of day will flash indicating that it needs to be set.
Step 1 - Press SET CLOCK
Step 2 - Current Time of Day - Hours: Adjust to the correct hour by pressing the UP or DOWN
arrow button. Press NEXT to go to Step 3.
Step 3 - Current Time of Day - Minutes: Adjust to the correct minutes by pressing the up or down
arrow button. Press NEXT to return to the normal operating screen.

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Manual Regeneration
There are two different purposes and methods for manual regeneration of the water softener.
• Delayed Regeneration
• Immediate Regeneration
Reasons you may want to manually regenerate the water softener:
1. If the brine tank has run out of salt:
• After adding salt to the brine tank manually regenerate the softener using the delayed regeneration
method. (The water needs time to dissolve the salt for a minimum of six hours.)
• To initiate a delayed regeneration simply push the REGEN button one time. (Don’t hold the button
down) REGEN TODAY will appear on the left hand side of the screen. The softener is queued to regen-
erate that day at the preset regeneration time. (Typically this is in the middle of the night.) If for some
reason you want to cancel the delayed regeneration just push the REGEN button again. REGEN TODAY
will no longer be visible on the screen.
2. If you have guests coming to stay in your home:
• The water softener is programmed to measure the specific water usage of your family and regener-
ates based on water usage history. If you know that there will be extra people using the water you may
want to manual regenerate the softener using the delayed regeneration method.
• To initiate a delayed regeneration simply push the REGEN button one time. (Don’t hold the button
down) REGEN TODAY will appear on the left hand side of the screen. The softener is queued to regen-
erate that day at the preset regeneration time. (Typically this is in the middle of the night.) If for some
reason you want to cancel the delayed regeneration just push the REGEN button again. REGEN TODAY
will no longer be visible on the screen.
3. If the water is hard:
• The quickest way to get soft water in your home is by initiating an immediate regeneration of the
water softener.
• To initiate an immediate regeneration of the water softener push and hold the REGEN button for ap-
proximately six seconds. The unit will immediately begin its regeneration cycle and water will be run-
ning to the drain. (When the softener has completed the manual regeneration the system will auto-
matically return to its preset normal operations.)
Note: After an immediate regeneration of the water softener there is typically a delay of three
to four days to purge the system i.e. water heater, pipes etc. of the hard water. After the three to
four day period is passed and there is still hard water present you may need to contact a service
professional.

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The Brine System
Your Aquatek water softener utilizes a salt brine system in order to regenerate and refresh the soften-
ing capibilites of your system. Two Tank systems (ATWS) have an extrnal Brine Tank and Cabinet Systems
(ATCWS) have a brine chamber inside the cabinet. Regardelss of model you will need to perform peroidic
matainence, system cleaning, and replenshing of salt levels.
Here is some information about salt usage, types and service. You may use any water softener salt of good
quality, including rock, pellet, solar, or “evaporated” types.
NOTE : All rock salt, regardless of source, contains insoluble materials which collect at the bottom of the
brine tank and requires periodic clean-out. We generally recommend avoiding rock salts if possible.
If purified salt products are used, the salt storage compartment will require less frequent clean-out, but you
must check more frequently for “bridging.”
Recommended: SOLAR SALTS - Solar salt crystals are a naturally white, opaque, high purity salt. Using solar
salt in your softener can help minimize the accumulation of brine tank residue—helping to keep the water
softener clean and trouble-free. Top Salt Brands: Morton, Diamond Crystal, Pure Soft
We recommend you check your salt level monthly and maintain a minimum of 20 lbs. of salt in the brine
tank at all times.
Cleaning:
A periodic clean-out of the Brine Tank is necessary to keep your system at peak operating efficiency. Do it at
least every two years when the salt supply is low. Follow these step-by-step procedures:
Tools Needed:
• Scoop
• Clean, bucket-size container
• Garden hose
• Household scrub brush or sponge
Procedure:
1. Remove the salt storage tank cover and the cap from the brine valve chamber.
2. Disconnect the brine line from the brine valve by holding the outer ring of the push fitting; push the tubing
in slightly before pulling it out.
3. Lift the brine valve out of the brine valve chamber and set aside in an upright position.
4. If you’d like to save any clean, dry salt remaining in the tank, remove it and place it in a clean container.
5. Using the scoop, dig out and discard as much remaining salt, water and debris as possible.
6. Remove the brine valve chamber by removing the screws on either side of the salt tank.
7. Remove the salt plate at the bottom of the brine tank.
8. Lay the salt tank on its side and direct a brisk stream of water from your garden hose
to its inside to rinse out all residue.
9. Using a household scrub brush and a mild soapy solution, clean the salt plate. This will complete the tank
cleaning.
10. Insert the brine valve into the chamber and replace brine valve chamber cap. (Re-insert the brine valve
into the chamber, re-insert the brine line fully, and replace brine valve chamber cap.)
11. Fill the salt storage tank with 4 to 6 inches of water.
12. Fill the tank with salt to within a few inches of the top.
13. Replace salt storage tank cover.

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Square Brine Tank
Round Brine Tank
Brine Tank interanal compoents & functionality of parts are essen-
tially the same regardless of whether you have a square or a round
tank. The only real differences are the shape of the Salt Shelf/Tank
Grid, and the Brine Valve Assembly. If you any questions we’re here
to help - call us at 1-877-414-PURE (7873)
5. Sqare Tank Grid
6. Round Tank Grid
1. Round Tank
Brine
Valve
Assembly
Float
Air Check Valve
3 a/b. Brine Well
4. Overflow Elbow
Drawing
Number Part Number Description Qty.
1 HBVA474-8 Round Tank Brine Valve Assembly (474) 1
2 ? Square Tank Brine Valve Assembly 1
3a HBWS-XX Round Tank Brine Well 1
3b ? Square Tank Brine Well 1
4 HOF Overflow Assembly 1
5. ? Square Tank Deck Assembly / Salt Shelf 1
6. HD-18 Round Tank Deck Assembly / Salt Shelf 1
Float
Air Check Valve
2. Square Tank
Brine
Valve
Assembly

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Parts Breakdown
Drawing
Number Part Number Description Qty.
1 V3175-01 Front Cover Assembly 1
2 V3107-01 Drive Motor 1
3 V3106-01 Drive Bracket and Spring
Clip 1
4 V3108 Circuit Board 1
5 V3110 Drive Reducing Gear 3
6 V3109 Drive Gear Cover 1
Not
Shown V3186 Transformer 110VAC-12VAC 1
Front Cover and Drive Assembly
Drawing
Number Part Number Description Qty.
1 V3005 Spacer Stack Assembly 1
2 V3004 Drive Cap Assembly 1
3 V3135 Drive Cap ASM. O-Ring 1
4a V3011 Piston Down-Flow ASM. 1
4b V3011-1 Piston Up-Flow ASM. 1
5 V3174 Regenerant Piston 1
6 V3180 O-Ring 1
Main Body Internals

UNITED WATER INC.
AquAtek AtWS-SerieS uSer Guide
18
Injector – A Black
Injector – B Brown
Injector – C Violet
Injector – D Red
Injector – E White
Injector – F Blue
Injector – G Yellow
Injector – H Green
Injector – I Orange
Injector – J Light Blue
Injector – K Light Green
Injector – Z Plug
Drawing
Number Part Number Description Qty.
1 V3176 Injector Cap 1
2 V3152 O-Ring Injector Cap 1
3 V3177-01 Injector Screen 1
4 ? ? 1
5 V3010-1 Injector Assembly | Color/
Letter varies (see list) 1
Front Cover and Drive Assembly
The size of your system will determine which injector assembly will be
needed.
Drawing
Number Part Number Description Qty.
1 V3195-01 Refill Port Plug ASM** -
2 H4615 Brine Elbow Locking Clip 1
3 JCP-P-6 Polytube Insert 3/8” 1
4 JCPG-
6PBLK Brine Elbow Nut 3/8” 1
5 V3330-01 Brine Elbow with Flow Con-
trol Retainer ASM 1
6 V3163 Brine Elbow O-Ring 1
7 V3165-01 Brine Flow Control Retainer
ASM (0.5 GPM) 1
Brine Elbow Refill Flow ASM & Port Plug
Drawing
Number Part Number Description Qty.
1 H4615 Drain Elbow Locking Clip 1
2 PKP10TS8-
BULK Poly Tube Insert 5/8” 1
3 V3192 Drain Elbow Nut 1
4 V3158-01 Drain Elbow 3/4” Male NPT 1
5 V3163 Drain Elbow O-Ring 1
6 V3159-01 Drain Flow Control Retainer
Assembly 1
7 V3162-XX Drain Line Flow Control
Botton*
Brine Elbow Refill Flow ASM & Port Plug
*The size of your system will determine which flow control button is
needed.
**Part not normally used on ATWS Systems

UNITED WATER INC.
AquAtek AtWS-SerieS uSer Guide
19
Drawing
Number Part Number Description Qty.
1 H4615 Elbow Locking Clip 1
2 V3008-02 Drain Footing Straight 1
3 V3166 Drain Footing Body 1
4 V3167 Drain Fooring Adapter 1
5 V3163 O-Ring 1
6 V3150 Split Ring 1
7 V3151 1” Nut 1
8 V3105 O-Ring 1
9 V3190-XX DLFC (specify size) 1
1” Drain Assembly (Optional)
Drawing
Number Part Number Description Qty.
1 V3151 1” Nut 2
2 V3150 Split Ring 2
3 V3105 O-Ring 2
4 V3145 1” Bypass Rotor 2
5 V3146 Bypass Cap 2
6 V3147 Bypass Handle 2
7 V3148 Bypass Rotor Seal Retainer 2
8 V3152 Bypass Cap O-Ring 2
9 V3155 Bypass Handle O-Ring 2
10 V3156 Bypass Rotor O-Ring 2
Bypass Assembly

UNITED WATER INC.
AquAtek AtWS-SerieS uSer Guide
20
Drawing
Number Part Number Description Qty.
Standard 1” Male NPT Elbow
1 V3151 1” Nut 2
2 V3150 Split Ring 2
3 V3105 O-Ring 2
4 V3149 1” Fitting PVC Male NPT
Elbow 2
Optional PVC Elbow
1 V3151 1” Nut 2
2 V3150 Split Ring 2
3 V3105 O-Ring 2
4 V3189 1” Fitting PVC ¾ and 1 PVC
Solvent 90 2
Optional 3/4” Brass
1 V3151 1” Nut
2 V3150 Split Ring
3 V3105 O-Ring
4 V3188-01 ¾” Fitting Brass
Optional 1” Brass
1 V3151 1” Nut
2 V3150 Split Ring
3 V3105 O-Ring
4 V3188 1” Fitting Brass
Installation Fittings Standard 1” Male NPT Elbow
Optional PVC Elbow
Optional 3/4” Brass Fitting
Optional 1” Brass Fitting