CLEAN WATER STORE 7500-REV4 Air Charger Sulfur Air Filter Installation Guide

: June 12, 2024
: CLEAN WATER STORE

Clean Water Made Easy
www.cleanwaterstore.com

7500-REV4 Air Charger Sulfur Air Filter
Installation Guide
Rev-081823

7500-REV4 Air Charger Sulfur Air Filter

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 startup guide entirely before beginning to install your system, and follow the steps outlined for best results.

Minimum pressure of 30 PSI recommended.
Maximum pressure recommended 80 PSI.
For indoor installation only.
Protect from sunlight, rain, and freezing.

CARBON MEDIA CONTAINS DUST.
USE MASK TO AVOID BREATHING DUST.
OK to wet down media with spray bottle

This filter system utilizes aeration and filtration for the removal of sulfur odors. This process will leave some air in the water. The air may give the water a milky appearance and is simply excess air in the water. While a certain amount of effervescence will always be present, it may be most noticeable during the first 30 days after installation of the system.

Questions?
Call us toll-free: 1-888-600-5426 or 1-831-462-8500
Email us: support@cleanwaterstore.com
See more information on our website: www.cleanwaterstore.com/resources

Packing Lists

All systems include:
7500-REV4 control valve, bypass valve, 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:
Sulfur Air Filter 1.0 cubic foot size
9” x 48” filter tank with distributor tube 12 lbs. filter gravel
1 cubic foot of catalytic activated carbon
1 lb KDF Cubes

Sulfur Air Filter 1.5 cubic foot size
10” x 54” filter tank with distributor tube 16 lbs. Filter gravel
1.5 cubic foot of catalytic activated carbon
1.5 lbs KDF Cubes

Sulfur Air Filter 2.0 cubic foot size
12” x 52” filter tank with distributor tube 20 lbs. filter gravel
2.0 cubic foot of catalytic activated carbon
2 lbs KDF Cubes

What to Do if Your Tank is Not Level Out of the Box:
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 knocking it on a concrete or solid floor once or twice to level it.

Pre-Installation

Review your packing list and make sure you have received all the parts before installation.
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.
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.
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.
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

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.
Make sure there is a ball or gate valve before and also after the filter system.
A hose bib (which is a faucet to which you can attach a garden hose) is strongly recommended after the Sulfur Air Filter and before the second ball valve. This makes it easy to rinse your new Sulfur Air Filter on start-up and gives you a place to test the water.
If you will be using copper piping, do not sweat the copper pipe directly on to the 7500-REV4 control valve.
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.
The pipe connectors are 1’ male pipe thread but you can add a reducer to reduce to ¾” pipe with common pipe fittings if needed.

How the Bypass Valve Works

Turn knob so the valve is bypassed when installing.
When you go to start up system turn the bypass SLOWLY to let water in and put in service.

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.

How Your Sulfur Air Filter Works

The 7500-Rev4 control valve maintains a compressed “air pocket” in the top of the tank while the system is in service.
As the water passes through the air pocket, the sulfur is oxidized and dissolved oxygen is added to the water.
The Air Charger Sulfur Filter’s catalytic activated carbon media bed then removes the sulfur and odors from the water.

Diagram of Typical Installation

Tank Assembly and Installation Instructions

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.
Add the filter gravel that came with your order first.
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.
Finally add the KDF cubes. These sit on top of the catalytic carbon filter media.
Remove cap or tape from top of distributor tube. Be careful not to pull up distributor tube when removing cap or tape.
Fill tank completely with water. This will allow the Carbon Backwash Filter media to settle and reduce the need of purging the air out of the tank later. Allow Carbon to soak for at least 2 hours but 24 hours or more is OK. Carbon contains trapped air, and this will help remove trapped air.
Add a small amount of silicone grease to the inner O-ring, where the distribution tube goes.
Next, install the top screen by inserting upwards and rotating to lock in place. (This is a funnel-shaped plastic screen that locks into the bottom side of control valve.
Lubricate the main tank O-ring with silicone grease and screw on the 7500-Rev4 control valve carefully. Do not use pipe-joint compound, vegetable oil, Teflon tape, or Vaseline or other greases to lubricate tank threads.
Connect bypass assembly with 1” pipe connectors to control valve.
Insert meter cable into meter cable port on bypass
Install inlet and outlet piping and hook up drain line tubing to drain.
If you are in earthquake zone, strap your backwash filter tank to wall with metal strapping.
Proceed to programming your 7500-Rev4 control valve timer and backwash frequency.
IMPORTANT: you must program the time and then start a backwash and rinse. The filter system must be backwashed and rinsed several times before using. See following pages for instructions.

Programming Your Valve

How to Start a Manual Backwash: Press the Back / Regen button
Pressing “Back Regen” at any time results in an immediate manual regeneration.
Pressing and holding for 3 seconds, when system is locked, results in a delayed regeneration at the preselected time.

Extended Power Outage Indicator
If power outage exceeds 3 days, the time-of-day indicator “_” will flash 12:12. The current time of day needs to be re-set. All other set parameters remain stored in memory. The valve will resume to operate from the point of the power outage.

Lockout Function
Keypad will lock after 5 minutes without use. To access the parameter changes, press and hold “Up” and “Down” buttons simultaneously for 3 seconds to unlock.
NOTE: To start all you need to do is set current time and date. All other parameters have been preset for you.

Set Time of Day

If LOCK icon is lit, press, and hold both UP and DOWN buttons for 3 seconds to unlock keypad.
Then press the MENU/CONFIRM button to enter the main menu.
Press DOWN button to scroll down to and select “Set Time of Day”
Press the MENU/CONFIRM button again to change time of day (Hour will flash)
Adjust hour by using DOWN or UP buttons.
Press the MENU/CONFIRM button again to change minutes (Minutes will flash)
Adjust minutes by using DOWN or UP buttons.
Press Back/Regen

Set Date

If not in the main menu, press the MENU/CONFIRM button to enter the main menu.
Press DOWN button to select and scroll down to “Set Date”
Month: Press the MENU/CONFIRM button again to change time of day (Month will flash) and adjust to current Month date by using DOWN or UP buttons.
Day: Press the MENU/CONFIRM button again to change Day date (Day date will flash) and adjust to current day date by using DOWN or UP buttons.
Year: Press the MENU/CONFIRM button again to change Year date (Year date will flash) and adjust to current Year by using DOWN or UP buttons.
Press BACK/REGEN button to save current date and go back to menu.
Continue to review and/or change the remaining settings (as follows)

Set Service Days: This is the number of days between backwash. Set for every 3 days depending on water quality. The catalytic carbon depends on aeration. If it does not backwash every 3 to 4 days then the air pocket will not have oxygen available for the catalytic carbon to work properly. In some cases for high levels of sulfur odor you may need to set for nightly or every 2 days.
Set Regen Time This is the time your system will backwash. Default is 2:00 AM
Set Backwash Time Set for 10 minutes.
Set Air Draw Time Set for 10 minutes.
Set Fast Rinse Time Set for 8 minutes.
Review Regen Times This is number of times the system has backwashed. Just for reviewing.
Review Software Version Version 5.0

Start the First Backwash

After programming, the system must be run through 2 or 3 backwash/rinse regeneration cycles to clean the new filter media.
Start with both bypass valves in the Bypass Position.
Press the BACK/REGEN button once to enter the backwashing cycle.
When the backwash icon is displayed, slowly open the bypass to a quarter position to make the water flow into the tank. Allow to fill slowly.
After all the air is out of the pipeline, open bypass valve completely and complete backwash.
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 Carbon media.
1.0 CF| 5 GPM
---|---
1.5 CF| 5 GPM
2.0 CF| 8 GPM

Make sure you have a minimum of these flow rates. For example, if the backwash water fills a 5-gallon bucket in 1 minute, you have 5 gallons per minute (GPM).

After the backwash, the system will automatically go into the fast rinse stage. The control valve will return to service status (indicated by the up flowing meter on the left) after the backwash and rinse are complete.
8 Repeat the Regeneration (backwash and rapid rinse cycle) step 2 to 3 more times until you see clear water through the drain line or your hose bib.

Advanced Programming Mode

Skip this for most applications as your filter system has already been set to correct modes.

Plug the RevV4 in and immediately press in sequence MENU/CONFIRM, then press BACK/ REGEN button, then press the DOWN button to enter the Advanced Programming Mode.
Press UP or DOWN buttons or to select the menu item to be changed
Note: If valve locks while programming, unplug power supply and repeat step above.
Press MENU/CONFIRM to enter the main menu
Press the UP or DOWN buttons to highlight each option.
Press MENU/CONFIRM to enter highlighted option.
Press the UP or DOWN buttons to adjust the value.
Press the MENU/CONFIRM to accept the changes.
Press BACK/REGEN button to advance to service status

Advanced Program Default Settings

Screen View	Default Settings
Review Company Info	CWS 831-462-8500
Set Valve Model	62605
Set Language	English
Set Company Info	CWS 831-462-8500
Set Hour Mode	12 HR
Set Time of Day	Current time of day
Set Date	Current date
Set Program Type	Interlock
Set Regen Cycles	No. 4
Set Set Clear Data	Close
Set Regen Mode	A-06
Set Service Days	3
Set Regen Time	2:00 AM
Set Backwash Time	10 Minutes
Set Air Draw Time	10 Minutes
Set Fast Rinse Time	8 Minutes
Signal Output Mode	b-01
Set Service Alarm	Disabled
Review Regen Times	NA
Review Software Version	Ver. 5.0

Maintenance

Every 4 to 6 years or if odor returns remove control valve and empty out the catalytic carbon filter media and KDF cubes and replace with new media.
Once a year clean the nozzle and throat on the injector. Turn off water pressure to your system and release any pressure by opening up a hose bib or faucet downstream of the filter system. Remove the two bolts covering the injector.
Using small screwdriver remove the injector nozzle and throat and filter screen and clean with paperclip and rinse in vinegar to remove any deposits.

Exploded Parts View

Item No.	Description	Quantity
1	Injector Cover	1
2	Screw, Cross	2
3	0-ring	1
4	Nozzle	1
5	0-ring	1
6	Throat	1
7	Filter Screen	1
8	Screw, Cross	1
9	Injector Body	1
10	0-ring	2
11	0-ring	2
12	0-ring	1
13	Screw, Cross	3
14	0-ring	1
15	Valve Body	1
16	Screw, Cross	2
17	Motor	1
18	Screw, Cross	4
19	Seal Ring	1
20	Motor	1
21	Fixed Disc	1
22	Screw, Cross	4
23	Moving Disc	1
24	Small Gear	1
25	Pin	1
26	Moving Seal Ring	1
27	Shaft	1
28	Anti-friction Washer	1
29	0-ring	2
30	Fitting Nut	1
31	Label	1
32	Control Box	1
33	Display Board	1
34	Wire for Display Board	1
35	Wire for Power	1
36	Probe Wire	1
37	Cable Clip	2
38	Wire for Locating Board	1
39	Control Board	1
40	Weather Cover	1
41	Dust Cover	1
42	Screw, Cross	1
43	Gear	1
44	Screw, Cross	4
45	Locating Board	1
46	0-ring	2
47	Dust Cover	1
48	Screw, Cross	1
49	Washer	1
50	Spring Washer	1
51	Pick	1
52	Screw, Cross	4
53	Spring Washer	4
54	Control Board	1
55	Seal Ring	2
56	Fitting Nut	1
57	0-ring	2
58	Anti-friction Washer	1
59	Shaft	1
60	Moving Disc	1
61	Fixed Disc	1
62	Seal Ring	1
63	Tube	1
64	Hexagonal Nut	1
65	Net	1
66	Connector	1
67	Articulated Nut	1
68	0-ring	1
69	Connector	1
70	Brine Line Flow Control	1
71	0-ring	1
72	Drain Line Flow Control	1
73	Clip	1

Troubleshooting the 7500-REV4 Sulfur AIR Backwash Filter

One problem that may occur is if you do not have enough backwash flow rate to properly clean the Carbon Backwash Filter.
You can verify the backwash flow rate by running the drain line into a bucket and timing it when the 7500-REV4 is in Cycle 1 or backwash.

What to Do If Odor Returns
If your systems worked at first but then the odor came back, check the following: Check odor at the hose bib directly after the filter system, which is before your household piping.
If no odor is present right out of the hose bib, or if you are having odor at only one fixture in the home but not others, you should sanitize the household piping with chlorine bleach.

To Chlorinate Piping
Put Sulfur Air system on bypass.
Add 1 or 2 cups of bleach to the prefilter or add 1 or 2 cups bleach however you can. Run the water in the home until you smell bleach. Turn off water and let chlorine sit in pipes for 3 – 4 hours.
Put Sulfur Air system back in service and run water in the home.
Check to make sure the air draw is working: put into a manual regeneration and once its in the brine draw cycle, check to make sure the air inlet is sucking in air. If it is not drawing clean the brine injector throat and nozzle (see Page 13).

7500-Rev4 Water Filters Limited Warranty

We warrant this water filter when installed according to factory recommendations, to be free from defects in materials and workmanship as follows:

Limited Warranty
This water conditioner unit is comprised of the finest industry components available. Each individual component used in the assembly of our equipment is covered by the original equipment manufacturer’s warranty. All components, except those specifically listed below, are warranted for a period of one (1) year from date of installation to the original purchaser to be free of defects in materials and workmanship subject to the manufacturer’s conditions and/or the conditions shown below.

Mineral Tanks
The fiberglass, polyglass or composite mineral tanks used in the assembly of this unit are warranted to be free of defects in materials and workmanship for a period of ten (10) years on 6” – 13” size tanks, and five (5) years on 14” and larger size tanks used for softener/filtration applications, subject to the manufacture’s conditions and/or the conditions shown below. Warranty does not cover exposure to weather, freezing, fractures caused by external impact, or exposure to vacuum.

Control Valves
The CWS control valve is warranted to be free of defects in materials and workmanship for a period or five (5) years.

Conditions

This warranty only covers water conditioners installed for residential use. Water conditioners installed for commercial or industrial applications are guaranteed for one (1) year from the date of installation.
Installation must be made in accordance with legal or local codes and manufacturer’s recommendations.
Failure must not result from exposure to weather, rodents, misuse, alteration, fire, lightning, power surges or neglect.
Water pressure must not exceed 100 PSI and water temperature must not exceed 100 degrees.
Subject to the above terms and conditions we will replace and/or repair, at our option, any parts of the water conditioner found defective in materials and workmanship. Defective parts must be returned, freight pre‐paid for repair or replacement.
This warranty does not cover labor, shipping charges, damages caused by delays of consequential damages or other causes beyond our control. Warranty does not cover pipes, fixtures or appliances.
Warranty extends to the actual water conditioner components only.
This warranty is to the original purchaser and is not transferable to any subsequent owner(s).
No other guarantees or warranty, expressed or implied, is applicable to our product. No repair or replacement made under the terms of the warranty shall extend this warranty.
Any product returned to Clean Water Store without a valid return authorization number will be rejected. Any product found to be defective will, at the sole discretion of Clean Water Store be repaired or replaced. Clean Water Store is not responsible for shipping cost to the repair facility.