Clean Water Systems Pro-OX 1650 Installation manual

Pro-OX 1650 Iron Filter Installaon & Start-Up
Guide
Thank you for purchasing a Clean Water System! With proper installaon and a
lile roune maintenance your system will be providing iron free water for
many years.
Please review this start‐up guide enrely before beginning to install your system,
and follow the steps outlined for best results.
PRO-OX MEDIA CONTAINS DUST.
USE PAPER MASK AND VENTILATE AREA TO AVOID BREATHING DUST DURING
INSTALLATION
Quesons?
Call us toll‐free: 1‐888‐600‐5426 or 1‐831‐462‐8500
Email us: [e-mail]
See more informaon on our website: www.cleanwaterstore.com/resources
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hp://www.cleanwaterstore.com

Pro-OX 1650 Iron Filter Installaon & Startup Guide
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Table of Contents
Packing List...................................................................................................................................................3
Pre-Installaon.............................................................................................................................................4
Best Pracces for Piping & Drain Installaon ..............................................................................................4
How Your Iron Filter Works .........................................................................................................................5
Assembly and Installaon Instrucons........................................................................................................8
Programming .................................................................................................................................10
Troubleshoong the Pro-OX 1650 Iron Filter ............................................................................................12
What To Do If Your Filter Tank Does Not Sit Level On the Floor ...................................................12

Pro-OX 1650 Iron Filter Installaon & Startup Guide
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Packing List
0.75 Cubic Foot Size System
Quanty (1): CWS 165 control valve w/ bypass assembly and pipe connector kit (1” or 3/4”)
Quanty (1): 8” x 44” standard lter tank with distributor tube
Blue media funnel for adding Pro-OX media
12 lbs. lter gravel
0.75 cubic foot of Pro-OX media
1.0 Cubic Foot Size System
Quanty (1): CWS 165 control valve w/ bypass assembly and pipe connector kit (1” or 3/4”)
Quanty (1): 10” x 44” (or 9” x 48”) standard lter tank with distributor tube
Blue media funnel for adding Pro-OX media
16 lbs. lter gravel
1.0 cubic foot of Pro-OX media
Carbon Filter 1.5 cubic foot size
Quanty (1): CWS 165 control valve w/ bypass assembly and pipe connector kit (1” or 3/4”)
Quanty (1): 10” x 54” standard lter tank with distributor tube
Blue media funnel for adding Pro-OX media
16 lbs. Filter gravel
1.5 cubic foot of Pro-OX media

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Pre-Installaon
1. Review your packing list and make sure you have received all the parts before beginning installaon.
2. If you are going to turn o the water to your house and you have an electric water heater, shut o the
power to the water heater before beginning installaon in case the water heater is accidentally
drained.
3. Pick a suitable locaon for your lter 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 installaon. Installaon typically takes 3 to 5
hours, though the Pro-OX 1650 iron lter must also be allowed to run through a complete backwash
and rinse cycle aer installaon.
5. Your water may be discolored or full of sediment and rust for a day or two aer installing and running
your system, parcularly if you have older or corroded piping.
Best Pracces for Piping & Drain Installaon
1. See typical installaon on page 5 (Fig. 2). The iron lter is installed aer the pressure tank.
2. Make sure to connect to the IN pipe to the CWS 165 inlet and the OUT pipe to the outlet (See Fig. 3). If
you face the control valve from the front, the water will enter on the right and exit on the le. From
the back, the water enters on the le. The inlet and outlet are aached to the bypass valve, which is
marked with arrows as well.
3. Make sure there is a working gate or ball valve before the iron lter and also one aer as shown in Fig.
2. The pressure gauges are oponal and perhaps not necessary but a hose bib (a faucet to which you
can aach a garden hose) is strongly recommended aer the iron lter and before the second ball
valve. This makes it easy to rinse your new iron lter on start-up and gives you a place to test the wa‐
ter before it enters your household plumbing.
4. If you will be using copper piping, do not sweat the copper pipe directly on to the CWS 165 control
valve, and avoid heang the valve’s plasc with your torch.
5. If you have copper pipe before the iron lter and it is too dicult to replace, you may sll experience
some copper staining of xtures and have a copper residual in your water, because the copper pipe
will sll have acidic water owing through it. We recommend PEX or PVC pipe up to the iron lter and
then copper aer it, if you will use copper piping.
6. You do not need unions to install your CWS 165 control valve. It has quick-release couplings that make
it easy to put the lter on bypass and remove it from your piping.

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7. The drain line tubing (not supplied) is connected to a drain from the drain outlet using exible 1/2” ID
tubing. Note that the drain can run up above the CWS 165 control valve and into a drain—it does not
have to drain down, as the lter backwashes under line pressure from your well pump. Most plumbing
codes require an air-gap connecon, so that if your sewer or sepc tank backs up, it cannot cross con‐
nect with the drain tubing.
How Your Iron Filter Works
See Fig. 1 below. Water enters your iron lter through the top of the tank and ows down through the
media and up the distributor tube. Downow type lters remove sediment and can be backwashed to
clean and reclassify the media inside, prevenng channeling. During backwash the ow of water is re‐
versed: water ows down the distributor tube and up through the media, liing, expanding, and cleaning
it.
Fig. 1—Iron lter cutaway diagram

Pro-OX 1650 Iron Filter Installaon & Startup Guide
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Fig. 2—Typical Pro-OX 1650 iron lter piping installaon with ball valve and hose bib aer lter

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Inlet Outlet
Outlet
Drain Line
Inlet
Fig 3—CWS 165 valve from the rear showing the inlet (le) and outlet (right) end-connector ngs (1” or
1-1/4” NPT in Noryl plasc). Brass end-connectors are also available for connecng to copper tubing.
Fig 4—CWS 165 side view
Bypass Knobs (bypass posion)

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Assembly and Installaon Instrucons
1. By hand, unscrew the enre CWS 165 control valve from top of tank if it was shipped screwed on.
Place distributor tube in tank if not already inside. Make sure the tube is capped, or wrap the top of
the tube with electrical or duct tape. This will prevent gravel and Pro-OX media from entering the dis‐
tributor tube when you add them to your tank.
2. Add the lter gravel that came with your system. You want the gravel to cover the boom distributor
screen before adding the Pro-OX media. Note: Be sure not to let any parts of the bag or other foreign
materials enter the tank when you are adding media.
3. Next add Pro-OX media. The tank should be about 2/3 full of media.
4. Remove cap or tape from distributor tube, being careful not to pull up on the tube.
5. Fill tank with water. Add 2 cups of household bleach into the tank. This bleach will acvate and sani‐
ze the Pro-OX media.
6. Add a small amount of silicone grease or vegetable cooking oil to the tank threads and screw on con‐
trol valve carefully.
7. Note regarding Teon tape and pipe sealants: It is okay to use Teon tape and pipe sealant on the
water pipe connector threads, where you aach your pipes or plumbing to the CWS 165 control valve.
DO NOT USE any Teon tapes or pipe joint compound on the tank itself or on the threads where the
CWS 165 threads into the tanks. Also note that when installing the CWS 165 backwash control-mer
valve on to the top of the lter tank, do not over-ghten. Tighten by hand; there is no need for a pipe
wrench or other wrench.
9. See how the bypass assembly is connected. Note that Items 1 in Fig. 5 below are the pipe connectors,
while the other end is what gets aached to the control valve. Your CWS 165 valve is usually shipped
in the bypass posion, however Fig. 5 is in service mode.

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Fig. 5—CWS 165 bypass and pipe connectors (In service mode)
10. Lubricate the bypass valve O-rings with some vegetable oil or silicone grease and connect the bypass
assembly to the control valve by sliding the bypass valve rmly into its body.
11. Next, lubricate the end-connectors with some silicone grease or vegetable cooking oil and insert them
into the bypass valve. Then, insert the red clips to lock them into place.
12. Make sure both knobs are in the bypass posion. It is not necessary to remove the red clips in order to
put the bypass valve into either bypass or service mode.
13. Now install your water pipes to the bypass valve’s end connectors. Make sure the inlet is installed to
the IN pipe connector and the outlet to the OUT connector.
14. Connect some exible tubing from the drain connecon on the CWS 165 control valve to a suitable
drain such as a sepc tank or drain to a sewer. It is ok to run the drain line up and over the lter up to
4 feet above the tank. If the drain will be more than 20 feet, use larger diameter tubing such as 3/4” or
1”. Note that is desirable to be able to run the drain line into a bucket in order to test the backwash
ow rate in the future. This is why hard piping the drain line is discouraged. However, you may use
hard PVC piping for the drain line if you are able to remove it and aach exible tubing should you ever
desire for tesng purposes. Make sure the drain line tubing is rmly clamped to the barbed ng with
a hose clamp to prevent leaks.
15. Plug your CWS 165 control valve into an outlet. Aer being plugged in, the screen may display
“WAITING PLEASE” while it nds the service posion. By default, the control valve will be set to work
like a water soener, which is obviously not correct for this applicaon, so you’ll need to program the
1

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system to work as an iron lter. There are a few sengs that must be changed before the system can
be put into service for this purpose.
16. PROGRAMMING:
a. First, press the menu buon labeled “ ” once. If it says “SCREEN LOCKED,” you may have to
press and hold the upper le buon labeled “ “ about 3 seconds unl a beep sounds to un‐
lock the display screen.
b. NOTE: Use the up and down arrows to cycle through the various program sengs. To change
any seng, press “ “ . When the display ashes, the value may be changed. Press either
the up or down arrow to change the value. Press “ “ once more to accept the value, and
the display should stop ashing to indicate that the seng has been saved.
c. Step 1: REGIONAL US GAL—this stands for US gallons format; if it is dierent, change it to US
GAL. When it is set, press the down buon to proceed.
d. Step 2: The display should be set to CALENDAR CLOCK. By default, the system is most likely set
to METER IMMEDIATE or METER DELAYED. We recommend CALENDAR CLOCK for the opera‐
on of your iron lter, to backwash aer a set number of days. Change the seng, then press
the down arrow to proceed. It is ok to set it to backwash every 600 to 1200 gallons, but we also
recommend every 3 – 4 days as well, a 3 – 4 day override, depending on usage.
e. Step 3: TIME—set the me of day and press the down buon to proceed.
f. Step 4: REG. TIME—set to 2:00 AM or some other me when no water is being used and no
other lter or soener is likely to be in a regeneraon cycle. Press the down buon to proceed.
g. Step 5: REG. DAYS—this tells the iron lter to how oen to regenerate, in days. It can be set for
anywhere from 1 to 10 days, with 7 being the commonly recommended seng. If you are hav‐
ing problems with bleed-through of iron aer your lter has been running for a few days,
change this seng to 2 or 3 days.
h. Step 6: BACKWASH—stands for backwash length in minutes. It should be set to 10 MIN, which
means 10 minutes of backwash. If your water is extremely high in iron you can change this
seng to 12 or 14 minutes to allow some extra backwash me. Generally, though, 10 minutes

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is a good seng. Press the down buon again to proceed.
i. Step 7: BRINE—this stands for Brine Draw. This does not apply to an iron lter, so lower this
seng to the absolute minimum value, which is 3. The display should read 3 MIN, meaning the
cycle will be 3 minutes long. Press the down buon to proceed.
j. Step 8: RINSE—this is the rapid rinse cycle, and should be set to 10 MIN. Press the down buon
to proceed.
k. Step 9: REFILL—This does not apply to an iron lter, so lower this seng all the way down to
00.0. When it is properly set, it should display 00.0 MIN. Press the down buon to pro‐
ceed.
l. Programming is complete—to exit, press the upper menu buon “ “ one more me to return to
service mode.
17. Now you can start the inial manual backwash. Turn the manual knob clockwise to “BA. WA” and a
manual backwash will begin.
18. Very slowly turn the inlet knob on the bypass valve towards the service posion (the bypass valve
knobs may be a lile s at rst) but DO NOT open the valve all the way. You want to allow all of the
air in the tank to escape before allowing the water to ow freely.
19. Once water begins to ow from the drain line, open the inlet valve all the way. Connue to let the wa‐
ter run from the drain line unl there are no longer any media nes present. This may take 1-2 back‐
wash cycles.
20. If possible, verify that the backwash ow is 5 gallons per minute for the 1.0 cubic foot and 7 gallons per
minute for the 1.5 cubic foot. You can easily run the drain hose to a bucket and, using a watch, verify
the ow rate in gallons per minute. An adequate backwash is crical to properly cleaning the Pro-OX
media and prevenng it from cemenng together.
21. Next, open the outlet on the bypass valve and then open the nearest treated water faucet to the unit
and allow the water to run unl it is clear. We advise using a bathtub, laundry sink, or other xture
that does not have an aerator screen, as any remaining residue may get caught in the screen.

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Troubleshoong the Pro-Ox 1650 Iron Filter
Measure the backwash ow rate by pung the system into a backwash mode and pung the drain tube
into a 5 gallon bucket and ming the ow rate. A 0.75 cubic foot system should ow at 5 gallons in one
minute, so the 5 gallon bucket should ll in one minute. The 1.0 cubic foot system should ow at 7 GPM
during backwash.
In some cases, the CWS 165 valve has simply been programmed incorrectly. Double-check your sengs
against those described above in step 16 of Assembly and Installaon Instrucons (“PROGRAMMING”,
page 10) or consult your system’s service manual for instrucons. In some cases a nightly backwash is re‐
quired for best results. Adjust backwash frequency to every 1 to 2 nights if necessary.
What To Do If Your Filter Tank Does Not Sit Level On the Floor
Your black lter tank base is not glued to the boom of your tank. Occasionally tank bases will become
crooked during shipment. If you nd that that your tank does not sit level on the oor, you can easily ad‐
just it by holding the empty tank and rapping it on a concrete or solid oor once or twice in order to level
it.