1. Product Overview
The Ecosoft 3-Stage Under-Sink Tankless Drinking Water Filter System is designed to provide clean, purified water directly from your kitchen faucet. This system utilizes a multi-stage filtration process to effectively remove various impurities from your tap water, enhancing its taste and quality for drinking and cooking.
The filtration process includes:
- Sediment Filter: Removes mechanical impurities such as sand, rust, and scale particles larger than 1 micron.
- Granular Activated Carbon Filter: Reduces chlorine, organic compounds, and improves water taste and odor.
- Granulated Activated Coconut Shell Carbon Filter: Further enhances purification by removing residual chlorine, organochlorine compounds, and organic matter.

Figure 1: Ecosoft 3-Stage Water Filter System with included faucet.
2. Setup and Installation
This water filter system is designed for under-sink installation. While installation is generally straightforward, it is recommended to consult a professional plumber if you are unfamiliar with plumbing procedures. Ensure all necessary parts are present before beginning installation.
2.1 Pre-Installation Checklist
- Verify all components are included in the package.
- Ensure you have basic plumbing tools (wrench, pipe tape, drill if needed for faucet).
- Turn off the main water supply before starting.
2.2 Installation Steps (General Guidance)
- Mount the filter bracket securely under the sink.
- Install the included faucet on your sink or countertop.
- Connect the water supply line to the filter system inlet.
- Connect the filtered water outlet to the new faucet.
- Ensure all connections are tight to prevent leaks.
- Slowly turn on the main water supply and check for leaks.
- Flush the system by running water through the new faucet for 2-3 hours to remove air and initial carbon fines. Initial water may appear cloudy due to dissolved air; this is normal and will clear.

Figure 2: Example of under-sink installation, showing filter units and connections.
3. Operating Instructions
Once installed and flushed, your Ecosoft 3-Stage Water Filter System operates automatically. Simply turn on the dedicated filtered water faucet to dispense purified water for drinking, cooking, and other uses.
- The system provides continuous access to filtered water without the need for a storage tank.
- The dedicated faucet ensures that only filtered water is dispensed for consumption.

Figure 3: Using the contemporary faucet to access filtered water.
4. Maintenance
Regular maintenance, primarily filter cartridge replacement, is crucial for the optimal performance and longevity of your Ecosoft water filter system.
4.1 Filter Cartridge Replacement
- It is recommended to replace the filter cartridges approximately every 6 months, or sooner depending on water quality and usage.
- Signs that cartridges may need replacement include a noticeable decrease in water flow or a return of undesirable tastes or odors.
4.2 Replacement Procedure (General)
- Turn off the water supply to the filter system.
- Depressurize the system by opening the filtered water faucet.
- Unscrew the filter housings using the provided wrench.
- Remove the old cartridges and dispose of them properly.
- Insert new cartridges, ensuring they are correctly seated.
- Screw the filter housings back on, hand-tighten, then use the wrench for a quarter turn.
- Slowly turn on the water supply and check for leaks.
- Flush the system for several minutes to remove air and carbon fines from the new filters.

Figure 4: Visual comparison of a new filter cartridge versus a used one, highlighting the importance of timely replacement.
5. Troubleshooting
This section addresses common issues you might encounter with your water filter system.
| Problem | Possible Cause | Solution |
|---|---|---|
| Water is cloudy after installation | Dissolved air in new filters | Run water for 2-3 hours to flush out air. This is normal and will clear. |
| Slow water flow | Clogged filter cartridges | Replace filter cartridges. Ensure proper flushing after replacement. |
| Water has unusual taste or odor | Expired carbon filters | Replace carbon filter cartridges. |
| Water leak at connections | Loose fittings or improper pipe tape application | Turn off water, tighten connections, reapply pipe tape if necessary. |
6. Specifications
| Feature | Specification |
|---|---|
| Brand | Ecosoft |
| Model Name | fmv3ecous2 |
| Part Number | fmv3ecous2 |
| Item Weight | 4.24 Kilograms |
| Package Dimensions | 41.2 x 39.29 x 16.99 cm |
| Color | White |
| Power Type | Manual Operation |
| Installation Method | Under Sink |
| Special Feature | Tankless |
| Manufacturing Method | Filter |
| UPC | 711841629113 |
7. Warranty and Support
For warranty information, specific product support, or to inquire about replacement parts, please refer to the documentation included with your product or contact Ecosoft customer service. Contact details are typically provided on the product packaging or on the manufacturer's official website.
If you have any questions regarding installation, operation, or maintenance that are not covered in this manual, please reach out to our support team for assistance.
