EC4 OxyTech
Fully Automatic, Chemical-Free Whole-House Water Filtration System
Durable. Dependable. High-Performance.
The EC4 OxyTech by RainSoft Great Lakes Water Treatment is a powerful solution for reducing iron, manganese, and hydrogen sulfide in your home’s water supply. Built for long-lasting performance and minimal maintenance, this system ensures a steady supply of high-quality water with ease.
Designed with user convenience in mind, the EC4 OxyTech includes advanced features that provide your family with cleaner, better-tasting water throughout the entire home.
Key Features
Immediate System Status
Press any button to activate the display and view the current system status, along with any important alerts or instructions.
Automatic Power Recovery
In the event of a power outage, the EC4 OxyTech automatically resumes and completes its regeneration cycle once power is restored—ensuring continuous water filtration.
Service Notification Alarm
An integrated alarm system notifies you when regular service or maintenance is needed.
User-Friendly Display
A two-line LCD screen delivers clear, easy-to-read messages. Menus scroll across the screen to help users navigate system information effortlessly.
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Featured Customer Review
John came over and was amazing! Knowledgeable, friendly and professional. Our technician Sam was also very professional, hard worker and respectful. I could not have been happier. Ty Rainsoft Great Lakes Water Treatment.
Information Center Access
Quick access to the system's Information Center provides insights into water quality, usage patterns, and system diagnostics—supporting both homeowners and technicians in troubleshooting and maintenance.
Advanced Filter Media
The EC4 OxyTech uses a proprietary blend of four specialized minerals, each chosen for its effectiveness in targeting specific contaminants. The media offers a long service life, low wear rate, and dependable performance across a wide temperature range.
How the EC4 OxyTech Works
Step 1: Incoming water passes through a compressed aeration chamber, where it becomes highly oxygenated. The oxygen reacts with dissolved iron, manganese, and hydrogen sulfide, converting them into solid particles.
Step 2: The oxygen-rich water continues through a multimedia filter bed, where the solid particles are captured—including elemental sulfur, iron, and manganese.
Step 3: At scheduled intervals, the system performs an automatic backwash to flush contaminants from the media and restore optimal performance.
Application Guidelines
- pH Range: Must be between 6.8 and 9.0.
- Iron: Maximum 10 ppm of ferrous (clear water) or ferric (red water) iron. For best results, maintain pH below 8.5 to avoid forming colloidal iron.
- Iron Bacteria: May increase maintenance frequency or reduce system life. Use chlorine or approved bacterial control methods to manage effectively.
- Hydrogen Sulfide: Maximum 10 ppm.
- Manganese: Limit of 2.0 ppm. Higher levels may interfere with iron removal. For best results, pH should be between 8.0–9.0. If iron is present, keep pH below 8.5.
- Chlorine: Should not exceed 1.0 ppm.
- Organic Matter (Tannins): Levels above 2.0 ppm may reduce filtration performance.
Maintenance Requirements
Over time, the filtration media will become exhausted and require replacement. The frequency of replacement depends on your household’s water quality and usage. Your local authorized RainSoft Great Lakes Water Treatment dealer can provide a recommended schedule based on your specific needs.
The system’s regeneration valves are designed to last a lifetime, though internal components may need annual cleaning or replacement due to exposure to untreated water. Your dealer will advise you on the ideal maintenance timeline and parts based on local water conditions and system use.
The EC4 OxyTech comes pre-programmed with an alert system to notify you when maintenance or media replacement is due.
Operating Highlights
- LCD display offers intuitive, easy-to-read system status and messages
- Automatically adjusts for daylight saving time
- Maintains accurate time for up to one week during a power outage—no battery required
- Program settings are permanently stored and do not need to be reset
CALIFORNIA RESIDENTS: Water treatment devices sold to retail consumers in California accompanied by certain health claims must be certified by the California Department of Health Services. The EC4 OxyTech series is not certified by the State of California for the purpose of making health claims.
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What People Say About Us
Jim Puffer did an excellent job evaluating my water & answering all my questions! He was professional, knowledgeable, patient, pleasant, efficient, & friendly! His demonstrations really helped me understand the quality of my water. Thank you so much, Jim, for your on-time visit to my home & all the valuable information!! Your expertise, & your company's service is invaluable!!! Keep up the great work!!! 😊
We recently had a system installed, and had a great experience working with Great Lakes Water Treatment. The 3 biggest positives: 1) Health: the taste and convenience of the filtered water system has translated into us drinking much more water than we were before 2) Hair: the softened water is much nicer for hair texture and 3) Great install experience: Dom did a great job getting the system set up in a nice, compact way. Thank you!
Absolutely fantastic service and product! Every step of the way, the install and information was first rate. My tap water no longer smells like a swimming pool, and I can drink the Reverse Osmosis without a care. Also, the detergent free washing machine unit is a marvel! I was skeptical, but it's better than advertised. Thanks so much!
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