Clean Water Systems 7500 Series Installation manual

Clean Water Made Easy
www.cleanwaterstore.com
7500 Carbon Filter Installation & Start-Up Guide
Thank you for purchasing a Clean Water System! With proper installation and a little routine maintenance
your system will be providing chlorine free water for many years.
Please review this start‐up guide entirely before
beginning to install your system, and follow the steps
outlined for best results.
CARBON MEDIA CONTAINS DUST.
USE PAPER MASK AND VENTILATE TO AVOID
BREATHING DUST.
Questions?
Call us toll-free: 1-888-600-5426 or 1-831-462-8500
Email us: [e-mail]
See more information on our website:
www.cleanwaterstore.com/resources

Clean Water Made Easy
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Table of Contents
Packing List:................................................................................................................................................... 2
Carbon Filter 0.75 cubic foot size............................................................................................................. 2
Carbon Filter 1.0 cubic foot size................................................................................................................ 3
Carbon Filter 1.5 cubic foot size................................................................................................................ 3
Carbon Filter 2.0 cubic foot size................................................................................................................ 3
Carbon Filter 2.5 cubic foot size................................................................................................................ 3
Carbon Filter 3.0 cubic foot size................................................................................................................ 3
Pre-Installation:............................................................................................................................................. 4
Best Practices for Piping & Drain Installation: .............................................................................................. 4
Installation of Your System Into Copper or Metal Piping Systems: .............................................................. 5
How Your Carbon Filter Works: .................................................................................................................... 5
Assembly and Installation Instructions:........................................................................................................ 6
Build Your 3-Way Bypass: ............................................................................................................................. 7
Programming Your Valve: ............................................................................................................................. 8
Programming the 7500 Valve: .................................................................................................................... 10
Initial Backwash: ......................................................................................................................................... 12
Maintenance:.............................................................................................................................................. 13
Normal Operation................................................................................................................................... 13
Troubleshooting the 7500 Carbon Filter:.................................................................................................... 13
Backwash Flow Rate................................................................................................................................ 13
Manufacturer Troubleshooting Guide:....................................................................................................... 14
Packing List:
Carbon Filter 0.75 cubic foot size
7500 Backwash Control Valve w/ Bypass Assembly and Pipe connector kit (1”or ¾”)
8” x 44” filter tank with distributor tube
Blue media funnel for adding the Carbon media
8 lbs. Filter gravel
0.75 cubic foot of Carbon media

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Carbon Filter 1.0 cubic foot size
7500 Backwash Control Valve w/ Bypass Assembly and Pipe connector kit (1”or ¾”)
9” x 48” filter tank with distributor tube
Blue media funnel for adding the Carbon media
12 lbs. Filter gravel
1 cubic foot of Carbon media
Carbon Filter 1.5 cubic foot size
7500 Backwash Control Valve w/ Bypass Assembly and Pipe connector kit (1”or ¾”)
10” x 54” filter tank with distributor tube
Blue media funnel for adding the Carbon media
16 lbs. Filter gravel
1.5 cubic foot of Carbon media
Carbon Filter 2.0 cubic foot size
7500 Backwash Control Valve w/ Bypass Assembly and Pipe connector kit (1”or ¾”)
12” x 52” filter tank with distributor tube
Blue media funnel for adding the Carbon media
20 lbs. Filter gravel
2.0 cubic foot of Carbon media
Carbon Filter 2.5 cubic foot size
7500 Backwash Control Valve w/ Bypass Assembly and Pipe connector kit (1”or ¾”)
10” x 54” filter tank with distributor tube
Blue media funnel for adding the Carbon media
35 lbs. Filter gravel
2.5 cubic foot of Carbon media
Carbon Filter 3.0 cubic foot size
7500 Backwash Control Valve w/ Bypass Assembly and Pipe connector kit (1”or ¾”)
12” x 52” filter tank with distributor tube
Blue media funnel for adding the Carbon media
50 lbs. Filter gravel
3.0 cubic foot of Carbon media

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Pre-Installation:
1. Review your packing list and make sure you have received all the parts before beginning
installation.
2. If you are going to be turning off the water to the house and you have an electric water heater,
shut off the power to the water heater before beginning installation in case water heater is
accidentally drained.
3. Pick a suitable location for your filter system on a dry level spot where it won’t be exposed to
freezing temperatures. A minimum of 20 PSI is required. Maximum pressure is 90 PSI.
4. Get all of your plumbing parts together before beginning installation, and make sure you have
received all of your packages before beginning or scheduling an installation. Installation typically
takes 3 to 5 hours. However, after installation the Carbon Filter must be allowed to run through
a complete backwash and rinse cycle.
5. After the system is installed and running, your water may be discolored, or full of sediment or
rust, particularly if this is older or corroded piping. This typically clears up over a day or two.
Best Practices for Piping & Drain Installation:
1. Make sure to connect the Inlet from your water source. Make sure to connect the Outlet to
where the water is being used and be sure and install the External Flow Control fitting onto the
Drain Port. From the male pipe thread on the External Flow fitting, you can transition to a barb
fitting and run tubing to where you need to.
2. Make sure there is a working gate or ball valve before the 7500 Carbon Filter and also one after.
The pressure gauges are optional, but they are a great way to tell at a glance if your filter needs
to be backwashed. A hose bib (which is a faucet to which you can attach a garden hose) is
strongly recommended after the Carbon Filter and before the second ball valve. This makes it
easy to rinse your new Carbon Filter on start-up and gives you a place to test the water before it
enters your household plumbing.
3. If you will be using copper piping, do not sweat the copper pipe directly on to the 7500 control
valve. Avoid heating up the 7500 control valve plastic with the torch.
4. You should install unions and a bypass around the valve, so that you can remove it and still have
water (See Build Your Bypass).
5. The drain line tubing (not supplied) is connected to a drain from the External Flow Control fitting
using a Female X Barbed fitting and flexible tubing. Note that the drain can run up above the
7500 control head and into a drain, it does not have to drain down, as the filter backwashes

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under line pressure from your well pump. Most plumbing codes require an air-gap connection,
so that if your sewer or septic tank backs up, it cannot cross connect with the drain tubing.
Installation of Your System Into Copper or Metal Piping Systems:
If your new filter system is to be installed in a metal (conductive) plumbing system, i.e. copper or
galvanized steel pipe, the plastic components of the system will interrupt the electrical continuity of
the plumbing system.
As a result, any stray currents from improperly grounded appliances downstream or potential
galvanic activity in the plumbing system can no longer ground through the contiguous metal
plumbing.
Some homes may have been built in accordance with building codes, which encouraged the
grounding of electrical appliances through the plumbing system.
Consequently, the installation of a bypass consisting of the same material as the existing plumbing,
or a grounded "jumper wire" bridging the equipment and reestablishing the contiguous conductive
nature of the plumbing system must be installed prior to your systems use.
This is simple and easy step to take if you are installing your water treatment system into copper
piping. A simple ground jumper wire with a pipe clamp can be purchased at any Home Center, or
hardware store etc. for a few dollars.
How Your Carbon Filter Works:
See Fig 1 on the right. In your Carbon Filter the water enters the
top of the tank (red arrows) and flows down through the media
and up the distributor tube (blue arrows). The downflow type
Carbon Filter removes sediment and can be backwashed, which
cleans and re-classifies the Carbon, preventing channeling. During
backwash the flow of water is reversed and water flows down the
distributor tube and up through the media, lifting and expanding
the Carbon media. During the backwash the Carbon is cleaned by
the action of the water flowing through it.
Carbon
Media
Carbon
Media

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Assembly and Installation Instructions:
1. Wrap the top of distributor tube with electrical or duct tape so that no gravel or Carbon media will
go down the distributor tube when adding the media.
2. Add the filter gravel that came with your order. You want the gravel to cover the bottom
distributor screen before adding the Carbon media.
3. Next add Carbon media. The tank should be about 2/3rds full of media, do not fill more than
2/3rds, even if there is some media left over.
4. Remove cap or tape from top of distributor tube. Be careful not to pull up distributor tube when
removing cap or tape.
5. Fill tank completely with water. This will allow the Carbon Filter media to settle and reduce the
need of purging the air out of the tank later.
6. Add a small amount of silicone grease to the inner O-ring, where the distribution tube goes. Next,
install the top screen (This is a funnel-shaped plastic screen that locks into the control valve and
prevents resin from being backwashed out to drain during the regeneration cycles.). Now,
lubricate the main tank O-ring and screw on 7500 control valve carefully. Do not use pipe-joint
compound, vegetable oil, Teflon tape, or Vaseline or other petroleum greases to lubricate tank
threads.

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Build Your 3-Way Bypass:
The 7500 Does not come with a pre-made bypass; you have to build one yourself. Schedule 40 or 80
PVC, or Pex pipe is okay to use. You also can get a pair of flex lines- instead of the unions shown where
the Elbow Connector is, you could have slip by male fittings, then flex lines, then male nipples, and then
you do not have to worry about plumbing it with too much pipe deflection- this must be avoided, as
pipe deflection will put undue pressure on the control valve threads which may then crack.
7. Next, you will need to program the system to work as a Carbon Filter. There are a few settings that
must be changed before the system can be put into service. Plug in the control valve and continue
on to the programming instructions.

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Programming Your Valve:
*IMPORTANT*: Before any operation, the valve menu must be unlocked. If the button
lock indicator is displayed, press and hold both the Up and Down buttons for 5 seconds.
A sound will indicate the menu is unlocked. The menu will re-lock automatically after 1
minute of inactivity.
Digital Display Icons and the four Service Buttons: In addition to the Dynamic Display Stripe
(explained immediately below this) there are six digital icons on the display that will indicate
“where the valve is”. They are as follows:
Green Key Icon: Indicates that the buttons are locked; press and hold both scroll buttons to
unlock.
Blue Clock-face Icon: Indicates that the red digital display is showing the Current Clock Time.
Blue Hourglass Icon: Indicates how many days remaining until the next backwash.
Green Wrench Icon: This indicates that you are in the programming menu and can change the
values.
Red Backwash Icon: three arrows pointing up, underneath a rectangle with dots. This
indicates that you are programming the Backwash step, or that the filter is in backwash.
Red Rapid Rinse Icon: three arrows pointing down, on top of a rectangle with dots. This
indicates that you are programming the Rapid Rinse step, or that the filter is in Rapid Rinse.
Dynamic Display Stripe: On the left side of the digital display, there are seven green bars that
light up and repeat a “going up” pattern. When the valve is in Service Mode, you will see that
bar display flashing. The green Key Icon indicates that the buttons are “locked”. To unlock the
buttons, press and hold both scroll arrows. While locked, the menu also changes, scrolling
between the currant clock time (blue Clock Icon will be lit), the number of days until the next

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backwash (the blue Hourglass Icon will be lit) and the Backwash Start Time (only the green key
is lit).
Sample Displays Showing Service Mode and Backwash and Fast (or Rapid) Rinse Modes:
Four Service Buttons: Left to right, Menu/Confirm, Manual/ Return, Scroll Down, Scroll Up.
Up and Down Arrows: When the Green Key Icon is lit, press and hold both buttons to unlock.
When the Dynamic Display Stipe is blinking, pushing the up/down buttons has no effect.
When the Green Wrench icon is lit, pressing either up/down arrow will scroll through the menu
options. There are a total of seven Menu items (explained later).
Menu/ Confirm Button (the button on the far left, an empty square with an arrow pointing
left): This is the button you press (after you have unlocked the screen) that puts you in the
Service Menu, so you can program the valve. The first time you press it, the Dynamic Display
Stripe goes away and the Green Wrench icon appears. Whichever of the Icons is lit at this time,
pressing the Menu/ Confirm button again will now cause that Icon’s value to flash, on the red
digital display.
Manual/ Return Button: Second from left, button icon is a “pointing index finger” with a left-
pointing arrow underneath.
Pressing this button in Service Mode (Dynamic Display Stripe is running) will IMMEDIATELY
start a backwash cycle. Pressing this button when in Program Mode will return you to the
Service Mode.
A. Time of day indicator
• When the blue Clock Icon is lit, the digital display is showing the current time. That time is
displayed in 24-hour format, i.e. 13:00 is 1:00 pm.

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B. Button lock indicator
• When the green Key Icon is lit, the buttons are locked. Press and hold both the Up and Down
arrows to unlock. Buttons will lock 60 seconds after the last time a button is pressed.
C. Program mode indicator (shown on drawing as Enquiry/ Setting) is the green Wrench Icon.
To activate this Icon from Service Mode, press and release the Menu/Confirm button (button
on far left, with a square and an arrow pointing left) and the green Wrench Icon will be lit.
• With the green Wrench icon lit, you can press either the scroll Up or scroll Down buttons to
navigate to each menu item. You will do this in order to:
Set/confirm that the valve is programmed for Non-external input mode.
Set Current Clock Time
Set the time when you want the filter to backwash
Set the number of complete backwash cycles it will do at that time
Set how many days between backwashes
Set the number of minutes for the Backwash Cycle
Set the number of minutes for the Rapid Rinse Cycle.
• When the green Wrench Icon is flashing, whatever parameter that is selected (set clock time,
set cycle step, etc.) can now be adjusted by using the Scroll buttons.
For example, when you press it the first time, the Dynamic Service Stripe goes away, the Green
Wrench Icon is lit, and the other icon that is lit is the Blue Clock Icon- that means that whatever
digits are on the red display, they are stating the clock time (in 24 hour mode). When you press
the menu/ Confirm button again, the Hours will flash, and now you can change the hour by
pressing the scroll arrows. When you are at the correct hour, press the Menu/Confirm button,
and the Minutes will flash. After adjusting the minutes with the Scroll arrow, pressing the
Menu/Confirm one more time displays your currently set clock time, and the digits are not
flashing.
Programming the 7500 Valve:
There are seven menu items that we will set and confirm, to program your Carbon filter.
Plug the valve in, and wait for the Service Screen to come on, the Dynamic Display Strip is
blinking.
If the green Key Icon is lit, press and hold both Scroll Buttons. The valve will beep and the key
Icon will disappear.
Press the Menu/Confirm button (far left) and the Green Wrench Icon will come on.

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You can now use either the scroll Up or Down buttons to stop at each of the 7 menu items you
will need to program. They are listed below in the order they appear if you use the scroll down
arrow and, when you enter the programming, it will be at whichever Menu option that was last
displayed when the programming mode was exited. The factory default screen is where this list
starts:
1. b - 01. This setting must be at b –01. If it says b –02, press the Menu/Confirm
button, the 02 will start flashing. Press either scroll key and it will display b –01, press
the Menu/Confirm button again, and it will say b –01 and not be flashing. Press the
Scroll Down button to continue.
2. Blue Clock Face Icon is displayed. To change the clock time, press the menu/Confirm
button; the hours will flash. Adjust the hours with the scroll arrows. Clock time is 24-
Hour (or Military Time), so 1 pm is 13:00, two pm is 14:00, etc.… When you are at the
correct hour, press the Menu/Confirm button and the minutes will flash, set the
minutes using the scroll up/down buttons, and press the Menu/ Confirm button when
done. The time you set will now be displayed, and not flashing. Press the Scroll Down
button to continue.
3. This is the screen where you set what time of day the backwash will start. 02:00 (2 am)
is the default time. The backwash cycle should be started while no one is using water,
and while no other filters you may also have are backwashing. You will adjust the clock
time for this as you did for the Current time clock above. Note: This is the one
parameter that does not have an Icon that identifies it. When the Service Screen is
automatically scrolling, or you are programming, the Current Clock time shows the Blue
Clock face Icon. The Backwash Start Time (also called the regeneration time) does not
have an icon.
4. F -00 This menu item sets the number of complete backwash cycles the valve will do,
when it reaches the time to do a backwash cycle. The default is F –00, which is doing
one cycle. If you set it at F –01, then it will do two backwash cycles. Your 7500 Carbon
filter only needs to backwash one time each time, so leave this at F –00.
5. 1 –07d This menu item sets the number of days between regenerations. The default
value is saying that the unit will backwash once ever seven days. This is a good starter
setting for your Carbon filter, once a week, so leave it at, or adjust it to, 7.
6. 2 –10mThis menu item is for the number of minutes that the backwash cycle step will
run. The default is ten minutes, and should be left at or adjusted to ten minutes.

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7. 3 –10mThis menu item is for the number of minutes for the Fast (or Rapid) Rinse. The
default is 10 minutes. Press the menu/confirm button, the 10 will flash; adjust it down
to 06 with the Scroll Down button, and press the Menu/ Confirm button. Now the valve
is programmed to Rapid Rinse for six minutes. Press the scroll down button, and you
are back at the first menu item, b –01. Press the Menu/Confirm button, and the Green
Wrench Icon goes away, the Dynamic Display Stripe returns, and you are done
programming your valve.
When the motor is turning -00- is displayed…
This valve can be used with Chemsorb (Sediment media), Calcite (Acid Neutralizer media),
Carbon (Carbon media) and different types of Iron Removal media (Pro-Ox, Mang-Ox, Katalox
Lite and Greensand with chlorine feed).
Initial Backwash:
1After programming, the system must be run through an initial backwash.
2Close inlet valve B and outlet valve C, and open the bypass valve A. From the initial valve
menu, press the Manual/Return button to enter into the backwashing. When the backwash
icon is displayed, slowly open the inlet valve B to a quarter position to make the water flow
into the resin tank; you should be able to hear the sound of air escaping from the drain
pipeline. After all the air is out of the pipeline, open inlet valve B and clean the foreign
materials in the tank until the water is clean.
3Verify that the backwash flow corresponds with the size of your system below. You can
easily run the drain hose to a bucket and using a watch verify the flow rate in gallons per
minute. An adequate backwash is critical to properly clean the Carbon media and prevent it
from fouling or channeling.
0.75 CF
5 GPM
1.0 CF
5 GPM
1.5 CF
5 GPM
2.0 CF
7 GPM
2.5 CF
7 GPM
3.0 CF
10 GPM

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4After the backwash, the system will automatically go into the fast rinse stage. Both stages
will last for as long as you have programmed that cycle step. The control valve will return to
service status (indicated by the up-flowing meter on the left) after the backwash and rinse
are complete.
Congratulations, you are done setting up your valve!
Maintenance:
Normal Operation
-Normal service display alternates between service days, time of day and scheduled
rinsing time.
-Days remaining until the next service will count down from the day value to 1 day
remaining.
-Once the count reaches 1, a service cycle will be initiated at the next designated rinsing
time.
Troubleshooting the 7500 Carbon Filter:
Backwash Flow Rate
One problem that may occur is if you do not have enough backwash flow rate to properly clean
the Carbon filter. You can verify the backwash flow rate by running the drain line into a bucket
and timing it when the 7500 is in Cycle 1 or backwash. A 1.0 or 1.5 cubic foot system should
have 5 gallons per minute and a 2.5 cubic foot system should have 10 gallons per minute of
backwash.

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Manufacturer Troubleshooting Guide:

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