Clean Water Systems 7500-M User manual

7500-M Pro-Ox Filter Installation Guide
Thank you for purchasing a Clean Water System! With proper installation and a
little routine maintenance your system will be providing iron 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.
The Pro-OX 7500-M Iron Filter media must be activated with a 1 cup of un-
scented liquid chlorine bleach when first installing it. Read instructions for more
information. It is easy to do, but a critical step.
The Pro-OX media produces very small particles (fines) when the system is first
installed. Bring the water pressure up VERY slowly during the initial backwash by
opening inlet valve slowly to avoid pushing the media up into the control head.
Performing multiple backwashes at start-up is an important step.
You should also not bring any other systems online (i.e. softeners, filters, etc.)
until the Pro-Ox system is fully flushed. Depending on the water quality, this may
take several backwashes and a week or two of normal water use.
The Pro-OX media contains dust. Use paper mask and ventilate area to avoid
breathing dust when first pouring the media into the tank.
Minimum 30 PSI required. Maximum pressure 90 PSI.
For indoor installation. Protect from sunlight, rain, and freezing.
Questions?
Call us toll-free: 1-888-600-5426 or 1-831-462-8500
Email us: [email protected]
See more information on our website: www.cleanwaterstore.com/resources
Clean Water Made Easy
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Table of Contents
Packing Lists .................................................................................................................................................. 3
Pre-Installation.............................................................................................................................................. 4
Best Practices for Piping & Drain Installation: .............................................................................................. 4
Installation of Your System in Copper or Metal Piping Systems:.................................................................. 6
How Your Pro-Ox Iron Filter Works: ............................................................................................................. 7
Assembly and Installation Instructions:........................................................................................................ 8
Programming Your Valve and Setting Time and Days for Backwash............................................................ 9
Initial Backwash .......................................................................................................................................... 12
Maintenance:.............................................................................................................................................. 14
Troubleshooting the 7500-M Pro-Ox Filter:................................................................................................ 14

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Packing Lists
All systems include:
7500-M control valve, qty 3 female NPT to BSP black pipe adapters, power supply, funnel for
adding media, top screen, start-up guide, and items included in one of the following options:
Find Your Size System to See What is Included:
What to Do if Your Tank is Not Level Out of the Box:
Your filter tank base is not glued to the bottom of your tank. Occasionally tank bases will become tilted
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 tap it on a concrete or solid floor once or twice to level it.
Pro-Ox Filter 0.75 cubic foot size
8” x 44” filter tank with distributor tube
9 lbs. filter gravel
56 lbs. of Pro-Ox media
10 lbs. Turbidex media
Pro-Ox Filter 1.0 cubic foot size
9” x 48” filter tank with distributor tube
12 lbs. filter gravel
70 lbs. of Pro-Ox media
10 lbs. Turbidex media
Pro-Ox Filter 1.5 cubic foot size
10” x 54” filter tank with distributor tube
16 lbs. Filter gravel
110 lbs. of Pro-Ox media
15 lbs. Turbidex media
Pro-Ox Filter 2.0 cubic foot size
12” x 52” filter tank with distributor tube
20 lbs. filter gravel
165 lbs. of Pro-Ox media
20 lbs. Turbidex media
Pro-Ox Filter 2.5 cubic foot size
13” x 54” filter tank with distributor tube
35 lbs. filter gravel
214 lbs. of Pro-Ox media
25 lbs. Turbidex media

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Pre-Installation
1. Review your packing list and make sure you have received all the parts before 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 Sediment 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 and outlet, following arrows on control
valve. Connect the External Flow Control fitting onto the Drain
line. You must use the 3 female pipe adapters provided.
Assemble all fittings into valve fitting prior to installion to the
head. These seal with the blue seals and if overtightened can
damage the valve body.
2. Make sure there is a working gate or ball valve before the 7500
Filter System and also one after as well as a bypass valve. A hose
bib (which is a faucet to which you can attach a garden hose) 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.
3. If you will be using copper piping, do not sweat the copper pipe
directly on to the 7500-M control valve.
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. To connect drain line to drain, use 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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6. Make sure to connect the Inlet from your water source and outlet following arrows on control
valve. Connect the External Flow Control fitting onto the Drain line (verify correct direction by
arrow).
7. Make sure there is a working gate or ball valve before the 7500 Pro-Ox Filter and also one after
as well as a bypass valve. A hose bib (which is a faucet to which you can attach a garden hose) is
strongly recommended after the Pro-Ox Filter and before the second ball valve. This makes it
easy to rinse your new Pro-Ox Filter on start-up and gives you a place to test the water before it
enters the piping going into your home. You should install unions and a bypass around the valve,
so that you can remove it and still have water (See Build Your Bypass).
8. If you will be using copper piping, do not sweat the copper pipe directly on to the 7500-M
control valve. Avoid heating up the control valve plastic with the torch.
9. To connect drain line to drain, use 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 in 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.

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How Your Pro-Ox Iron Filter Works:
Water enters the top of the tank and
flows down through the media and up
the distributor tube.
The backwashing Pro-Ox Filter
removes sediment and is
automatically backwashed.
This cleans and re-classifies the Pro-
Ox, 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 Pro-
Ox media.
During the backwash the Pro-Ox is
cleaned by the action of the water
flowing through it.

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Assembly and Installation Instructions:
Note: Verify the distributor tube is seated into the bottom
of the tank and the top of the tube is level with the top of
the tank prior to adding media.
1. Wrap the top of distributor tube with electrical or duct tape so
that no gravel, Pro-Ox, or Turbidex media will go down the
distributor tube when adding the media.
Note: The correct amount of each media was shipped with
your order depending on the tank size. When all the media
is installed, the tank should be approximately 2/3 full.
Please review all boxes shipped prior to starting as the Pro-Ox media may be contained in
more than one bag.
2. Add the filter gravel that came with your order. You want the gravel to cover the bottom
distributor screen before adding the Pro-Ox media.
3. Next add Pro-Ox media.
4. Next add the Turbidex.
5. Remove funnel and tape from top of distributor tube. Be careful not to pull up distributor tube
when removing cap or tape.
6. Fill tank half full of clean water. Add 1 cup unscented bleach. Continue to fill tank completely with
clean water. This will activate the Pro-Ox Filter media and help to settle and reduce the need of
purging the air out of the tank later. Let sit for an hour minimum.
7. Add a small amount of silicone grease to the inner O-ring, where the distribution tube goes.
8. Lubricate the main tank O-ring and install the top screen Note: Use the food grade silicone lube we
shipped with your order. Do not use pipe-joint compound, vegetable oil, Teflon tape, or Vaseline or
other petroleum greases to lubricate tank threads.
9. Also note the top screens may differ in color or shape but will provide the same function.

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10. Install the control valve onto the tank and tighten enough to seal the O-ring. Do not overtighten the
control valve to the tank as damage may occur.
11. Mate your Inlet, Outlet, and Drain line connections to your plumbing. If using flex lines to your inlet
and outlet connections, thread tape or sealant is not required. The fitting seals to the washer inside
the flex-line.
Programming Your Valve and Setting Time and Days for Backwash
Next, you will need to program the system to work as a Pro-Ox Filter. There are a few settings that
must be changed before the system can be put into service. Plug in the control valve and begin the
programming instructions.
*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.

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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.
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 Menu/Confirm to move onto the minute value. Change this value with Up/Down,
and press Menu/Confirm 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 Menu/Confirm button and use the Up/Down buttons to
change the hour value. Press the Menu/Confirm button again and change the minute value
using the Up/Down buttons. Finally, press Menu/Confirm 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.

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4) To change the Service Days:
Service days indicates how often the system will operate and backwash/rinse. The
recommended setting for a Pro-Ox filter is 3-4 days.
To set this, change the programming mode to Service Days ( [1-03D] ). Press the Menu/Confirm
button and use the Up/Down buttons to set it to your desired amount. Press Menu/Confirm 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 Pro-Ox iron 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
Menu/Confirm button and use the Up/Down buttons to set it to [2-10:00]. Press Menu/Confirm
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 Pro-Ox iron 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
Menu/Confirm button and use the Up/Down buttons to set it to [3-06:00]. Press Menu/Confirm
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.
NOTE: Your 7500-M Iron filter may be manually adjusted to backwash using the knob on top of
the unit. This could be useful during a prolonged power outage. Turn the knob in the clockwise
direction to the position required by lining up the indicator. This can also be used with power
by turning the knob a couple of clicks and the valve will then advance to the next step cycle.

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Initial Backwash
Note: After programming, the system must be run through several initial backwash / Rinse
cycles to remove any fine particles from the media. During these initial backwashes you will
notice the effluent coming from the drain will be very dark and lighten up after several
cycles. You are not flushing away the media so don’t be alarmed. You will continue to run
the system through the backwash and rapid rinse cycles until the water coming from the
drain line is clear during the Rinse cycle. (Usually 2-4 cycles depending on tank size.)
If at any time during the initial backwash you notice a reduced flow coming out of the drain
line, it is possible you have clogged the upper top screen. Advance the control head to the
rapid rinse cycle to flush out the top screen and then return to the backwash cycle to
complete the initial backwash steps.
Also: If 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 media and
prevent it from clumping together.
0.75 CF
5 GPM
1.0 CF
7 GPM
1.5 CF
10 GPM
2.0 CF
12 GPM
1Close the Inlet, Outlet, and Bypass valves.
2Press the Manual/Return button to enter the backwashing cycle (backwash icon is
displayed).
3Unplug the unit to keep the control valve in the backwash cycle.

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Note: It is very important to bring the water pressure into the unit at a slow rate initially. If
the initial flow rate is to high, it could result in pushing the media up into the top screen or
control valve possibly resulting in the system not functioning properly.
4Slowly open the inlet valve approximately a quarter turn to start the water flow into the
tank. You should be able to hear air escaping from the drain line.
5When all the air is out of the drain line and you have a solid flow of water, continue to
slowly open the inlet valve until it is fully open.
6Continue to flow water with the inlet valve fully open for a period of 10-15 minutes.
7Plug the unit back in and let the backwash cycle complete as timed. (Note your display will
toggle between the time of day and the backwash cycle). When complete, the valve will
automatically advance to the rinse cycle.
8Let the rinse cycle complete as timed and your unit will advance back to the service mode.
(the green dynamic strip on the left will light up).
9Repeat the complete Regeneration cycle process (i.e. backwash and rapid rinse) until the
water coming out of the drain line during the rapid rinse cycle is clear. Note that the water
from the drain line during backwash will always be cloudy as you are cleaning the media
bed of trapped particles.
10 Let the control head advance to the Service mode. Open your hose bib or the outlet valve if
you did not install a hose bib, and flush the system until you see the water is clear. You can
also run water from the nearest source of entrance in the house such as a utility sink or
bathtub.
Congratulations, you are done setting up your valve!

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Maintenance:
No weekly or monthly maintenance is required.
Troubleshooting the 7500-M Pro-Ox Filter:
If you notice a decreased flow coming out of the system during normal operation, verify the
backwash flow rate is sufficient by closing the outlet valve, advancing the system to backwash,
and run the drain line into a bucket and time the effluent to calculate the gallons per minute. If
you have the correct flow rate, you can increase the backwashing frequency by programming
the valve to regenerate more frequently.