Clean Water Systems 7500 Series Installation manual

CWS 7500 Sediment Filter Guide REV 110916
Clean Water Made Easy
www.cleanwaterstore.com
7500 Sediment 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 sediment 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.
SEDIMENT 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

CWS 7500 Sediment Filter Guide REV 110916
Clean Water Made Easy
www.cleanwaterstore.com
Table of Contents
Pre-Installation.............................................................................................................................................. 3
Best Practices for Piping & Drain Installation ............................................................................................... 3
Installation of Your System into Copper or Metal Piping Systems ........................................................... 4
How Your Sediment Filter Works.................................................................................................................. 4
Fig 2: Typical Sediment Filter 7500 piping installation with ball valve and hose bib after the filter.... 5
Assembly and Installation Instructions:........................................................................................................ 6
Programming Your Valve .............................................................................................................................. 8
Initial Backwash .......................................................................................................................................... 10
Maintenance ............................................................................................................................................... 11
Normal Operation................................................................................................................................... 11
Troubleshooting the 7500 Sediment Filter ................................................................................................. 11
Backwash Flow Rate................................................................................................................................ 11
What To Do If Your Filter Tank Does Not Sit Level On the Floor ............................................................11
Initial Backwash Media Lifted Into Control Head ...................................................................................12

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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. Installation typically takes
3 to 5 hours. However, after installation the Sediment Filter must be allowed to run through
several complete backwash and rinse cycles to clean and condition the filter media..
5. After the system is installed and running, your water may be discolored, or full of sediment or
rust, particularly if you have older or corroded piping. This typically clears up over a day or two.
Best Practices for Piping & Drain Installation
1. See typical installation on page 7 (Fig 2). The Sediment Filter is installed after the pressure tank.
2. Make sure to connect the IN pipe to the 7500 inlet and the OUT pipe to the outlet (see Fig 2)
and install a 3 valve bypass around the system.
3. Make sure there is a working gate or ball valve before the 7500 Sediment Filter and also one
after as shown in Fig 2. The pressure gauges are optional and perhaps not necessary but a hose
bib (which is a faucet that you can attach a garden hose to) is strongly recommended after the
Sediment Filter and before the second ball valve. This makes it easy to rinse your new Sediment
Filter on start-up and gives you a place to test the water before it enters your household
plumbing.
4. 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.
5. The drain line tubing (not supplied) is connected to a drain from the drain outlet using flexible
½” ID tubing. Note that the drain can run up above the 7500 control and into a drain, it does
not have to drain down, as the filter backwashes 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.

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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 Sediment Filter Works
See Fig 1 on the right. Water enters the top of the sediment filter
tank (red arrows) and flows down through the media and up the
distributor tube (blue arrows). The downflow type sediment filter
removes sediment and can be backwashed, which cleans and re-
classifies the media, 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
sediment media. During the backwash the media is
cleaned by the action of water flowing through it.
Chemsorb
Media

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Fig 2: Typical Sediment Filter 7500 piping installation with ball valve and hose
bib after the filter

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Assembly and Installation Instructions:
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.

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1. Wrap the top of distributor tube with electrical or duct tape so that no gravel or Chemsorb
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 Sediment media.
3. Next add Sediment media. The tank will be about 2/3 full of media, do not fill past 2/3rds, even
if there is some extra 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. If possible at this point, fill tank completely with water. This will allow the Sediment Filter media
to settle and reduce the need of purging the air out of the tank later.
6. Now install your water pipes to the 7500 bypass end connectors. Make sure inlet is installed to
the 'In" pipe connector on the bypass valve and outlet is on the “Out” connector.
7. Connect some flexible tubing from the drain connection on the 7500 control valve to a suitable
drain such as a septic tank or drain to a sewer. It is OK to run the drain line up and over the
7500 Sediment Filter up to 4 feet above the top of the tank. If the drain line will be more than
20 feet, use larger diameter tubing such as ¾” or 1”. Note that it is desirable to be able to run
the drain line into a bucket in order to test the backwash flow rate in the future. This is why
hard piping the drain line is discouraged, however, if you do use hard PVC piping for the drain
line, and you are able to remove the hard PVC drain piping and attach flexible tubing should you
ever desire for testing purposes, it is OK to use rigid PVC pipe for the drain. Make sure the drain
tubing is firmly clamped to the barbed fitting with a hose clamp to prevent leaks.
8. Next, you will need to program the system to work as a Sediment 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 next page to begin 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.
1. To begin programming your valve, unlock the menu and press the Menu/Confirm button. This
puts the valve into program display mode, indicated by the Enquiry/Setting icon being
displayed. The Enquiry/Setting icon is displayed whenever you are changing the parameter
of a programming mode.
2. The sequence of programming modes is shown in the diagram below. To switch between
modes, press the up or down button according to which direction your mode is. The modes
can only be changed when the Enquiry/Setting button is displayed and you are not currently
modifying any other parameter.

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1) To change the Time of Day:
Change programming mode to Time of Day ( [00:00] and time of day icon displayed ). The hour
and Enquiry/Setting icon will be flashing. Change the hour value with the Up/Down buttons,
then press Enquiry/Setting to move onto the minute value. Change this value with Up/Down,
and press Enquiry/Setting again to confirm the time.
2) To change the Rinsing Time:
The rinsing time is the hour of day that the system will turn on to perform its function. We
recommend setting the system to backwash at 2 AM [02:00], or any time that it is unlikely any
water will be used. Note the valve uses the 24-hour clock.
The default setting is [02:00]. The max setting is [23:59]. To change, set the programming mode
to Rinsing Time ( [00:00] ). Press the Enquiry/Setting button and use the Up/Down buttons to
change the hour value. Press the Enquiry/Setting button again and change the minute value
using the Up/Down buttons. Finally, press Enquiry/Setting to confirm your rinse time.
3) To change the Rinsing Frequency:
The rinsing frequency is how many times the system will backwash and rinse per service.
This should be left at its default, [F-00]. This will have the system only backwash and rinse once
per service.
4) To change the Service Days:
Service days indicates how often the system will operate and backwash/rinse. The
recommended setting for a neutralizer filter is 7 days.
To set this, change the programming mode to Service Days ( [1-03D] ). Press the Enquiry/Setting
button and use the Up/Down buttons to set it to your desired amount. Press Enquiry/Setting to
confirm your input.
5) To change the Backwash Time:
The backwash time is the amount of time (in minutes) that the system will backwash for.
For a neutralizer filter, set the backwash time to 10 minutes [2-10:00]. To change this, set the
programming mode to Backwash Time ( [2-10:00] and backwash icon displayed ). Press the

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Enquiry/Setting button and use the Up/Down buttons to set it to [2-10:00]. Press
Enquiry/Setting to confirm the backwash time.
6) To change the Fast Rinse Time:
The fast rinse time is the amount of time (in minutes) that the system will rinse for.
For a neutralizer filter, set the fast rinse time to 6 minutes [3-06:00]. To change this, set the
programming mode to Fast Rinse Time ( [3-10:00] and fast rinse icon displayed ). Press the
Enquiry/Setting button and use the Up/Down buttons to set it to [3-06:00]. Press
Enquiry/Setting to confirm the fast rinse time.
7) To change the Signal Output Mode
The signal output mode refers to when the system receives external function.
Leave this at its default, [b-01].
After configuring, press the Manual/Return button to exit programming mode.
Press the Menu/Enter Button until all steps have been viewed. The Program Mode will
be exited and normal operation resumed. If no buttons are pressed for 60 seconds or
longer in Master Programming Mode it will be exited automatically.
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.
3If possible verify 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 Chemsorb media
and prevent it from cementing together.
0.75 CF
5 GPM

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1.0 CF
5 GPM
1.5 CF
7 GPM
2.0 CF
10 GPM
2.5 CF
12 GPM
3.0 CF
15 GPM
4After the backwash, the system will automatically go into the fast rinse stage. Both stages
will last as long as you have programmed the valve for. 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 Sediment Filter
Backwash Flow Rate
One problem that may occur is if you do not have enough backwash flow rate to properly clean
the Sediment 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.
In some cases, the 7500 may not be programmed correctly. See the 7500 service manual for
instructions on how to access the master programming.
What To Do If Your Filter Tank Does Not Sit Level On the Floor
Your black filter tank base is not glued to the bottom of your tank. Occasionally tank bases will
become crooked during shipment. If you find that that your tank does not sit level on the floor,
you can easily adjust it by holding the empty tank and rapping it on a concrete or solid floor
once or twice in order to level it.

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Initial Backwash Media Lifted Into Control Head
Sometimes, when doing the Initial Backwash, the media gets lifted up into the control head.
You can tell this happened because you will have little or no flow, either going out to drain
while in the backwash positon, or when in the service positon.
To remove media from a control head, do the following:
1) Put the Inlet Bypass in the Closed position.
2) From the Service Mode, initiate a manual regeneration, by pressing and holding the regen
button (button on far left).
3) The valve will advance to the BW (backwash) position, and start counting down. Press the
Regen button again, and wait for the valve to advance and stop at the Rapid Rinse (RR) position.
4) With the valve in the RR position, open and close the Inlet Bypass valve several times. After
the third or fourth time, leave it in the open position and check the drain line- do you have a
good solid flow? 90% of the time, the answer is yes, but sometimes, even after opening and
closing the valve many times, you still don’t have good flow… But, in either case (good or no
flow), continue…
5) With the Inlet Valve OFF, Advance the valve back to Service position again, and again press
and hold the Regen button, we are putting the valve back to the Backwash position.
6) Open the Inlet valve just enough so you can hear the water passing thru the valve- you
should notice a corresponding slow flow out of the drain line. After a minute, if there are no air
bubbles present, open the valve about another quarter inch- again, you should see a
corresponding increase in the flow… And you will continue until the valve is full open.
IMPORTANT:
Any time that you are in the Backwash or Rapid Rinse position, you may need to unplug the
power- this will hold the valve in its current position, so it doesn’t ‘time out’ and go to the next
position. When you plug the valve back in, after a minute it will return to where it was when
you unplugged it (i.e. 2:32 remaining in BW). Understand, it is not possible to jam media into
the head while in Rapid Rinse, or Service, just in the Backwash, when the flow direction is
reversed.
What you are trying to accomplish, after you have pushed the media back in to the tank in the
Rapid Rinse position, is to get the Inlet valve all the way open in the Backwash position, without
it jamming media back in the head, and this is the part where you have to go slow, open up the
Inlet valve a little bit at a time and let it run for a few minutes- this is why you may have to
unplug it- and then, once you have done that, finally, do one more backwash, starting with the
Inlet valve open, just as it will be when it does it automatically at night. Once it does that
successfully, you are done.