For years, our household relied on bottled water delivery or filtered pitchers for drinking water. However, these solutions often fell short in terms of convenience, cost-effectiveness, and overall water quality. That’s why we eagerly tested the OnlyPure Reverse Osmosis System, a cutting-edge water filtration solution promising exceptional purity, alkalinity, and a high flow rate.
What is OnlyPure Reverse Osmosis System?
The OnlyPure Reverse Osmosis System is an advanced under-sink water filtration system that combines reverse osmosis technology with an alkaline filter. It’s designed to provide a steady supply of ultra-pure, pH-balanced water for your entire household or commercial space.
What’s Included?
- OnlyPure Reverse Osmosis System
- Smart Faucet with TDS Monitor
- Pre-Carbon Filter
- Reverse Osmosis Membrane
- Alkaline Filter
- Power Adapter
- Installation Hardware and Tubing
OnlyPure Reverse Osmosis System Key Specifications
- Model: Tankless Reverse Osmosis Water Filtration with Alkaline
- Dimensions: 17″ L x 5.39″ W x 16″ H.
- Flow Rate: 600 Gallons Per Day (GPD)
- Filtration Stages: 6 (Sediment, Carbon, RO Membrane, and Alkaline)
- Certifications: NSF/ANSI 58 and NSF/ANSI 42
- Drain Ratio: 2:1 (Pure to Drain)
- Smart Faucet with TDS Monitor
- Easy DIY installation
OnlyPure Reverse Osmosis System Design and Features
The OnlyPure Reverse Osmosis System is a compact and streamlined unit designed for effortless under-sink installation. Its sleek appearance belies the advanced filtration technology within, featuring multiple stages to remove impurities and enhance water quality.
Multi-Stage Filtration
The system employs a comprehensive 6-stage filtration process to ensure the highest water purity. It starts with a sediment filter that removes large particles like rust and sand, followed by a carbon filter that eliminates chlorine, odors, and organic contaminants.
The heart of the system is the reverse osmosis membrane, which filters out up to 99% of total dissolved solids (TDS), heavy metals like lead and arsenic, and other harmful contaminants.
Multi-Stage Filtration Explained:
- Sediment Filter – Removes larger particles such as rust and sand.
- Carbon Filter – Eliminates chlorine, odors, and organic contaminants.
- Reverse Osmosis Membrane – Filters out heavy metals, chemicals, and harmful contaminants.
- Alkaline Filter – Adds essential minerals to the water, raising the pH to an optimal level above 8.5.
Alkaline Enhancement
What sets the OnlyPure system apart is its alkaline filter stage. This final step enriches the purified water with essential minerals, raising the pH to an optimal level exceeding 8.5.
Alkaline water is known for its potential health benefits, including improved hydration, balanced pH levels, antioxidant properties, and support for detoxification and immune function.
High-Capacity Flow Rate
With a flow rate of 600 gallons per day, the OnlyPure system ensures a continuous supply of pure, alkaline water for your entire household or commercial space.
This high capacity makes it suitable for large families, offices, or any environment with high water consumption needs.
Smart Faucet with TDS Monitor
The included smart faucet not only dispenses your purified, alkaline water but also features a real-time TDS (Total Dissolved Solids) monitor. This convenient display keeps you informed about the water quality and filter life, ensuring you always have access to the purest water possible.
Eco-Friendly and Cost-Effective
The OnlyPure system is designed with sustainability in mind, featuring a 2:1 drain ratio that minimizes water waste. For every gallon of purified water produced, only half a gallon is drained, making it both environmentally friendly and cost-effective in the long run.
Easy installation and maintenance
One of the standout features of the OnlyPure system is its hassle-free installation and maintenance. The compact, tankless design fits seamlessly under most sinks, and the included hardware and instructions make DIY installation a breeze.
Changing filters is also a quick and straightforward process, ensuring optimal performance without the need for professional assistance.
Performance and Use
Installing the OnlyPure Reverse Osmosis System was a surprisingly simple process, thanks to the clear instructions and well-designed components. The compact size allowed for easy placement under our kitchen sink, and the tubing and fittings connected seamlessly to our existing water lines.
Once installed and powered on, the system went through an initial flushing cycle, preparing the filters for use. Within minutes, we had a steady stream of pure, alkaline water flowing from the smart faucet.
The water quality was immediately noticeable, with a crisp, refreshing taste and a distinct lack of odors or off-flavors often associated with tap water. The alkaline enhancement provided an additional dimension, leaving a smooth, pH-balanced sensation on the palate.
Over the course of several weeks, we thoroughly tested the system’s performance, using the purified water for drinking, cooking, and even watering our houseplants. The high flow rate ensured we never ran out, even during periods of heavy usage.
The smart faucet’s TDS monitor proved invaluable, providing real-time feedback on water quality and alerting us when filter changes were approaching. Replacing the filters was a simple process, taking only a few minutes and requiring no tools.
OnlyPure Reverse Osmosis System Comparison with Similar RO Systems
| Feature | OnlyPure RO System | iSpring RCC7 | Home Master TMAFC-ERP | APEC ROES-PH75 |
|---|---|---|---|---|
| Flow Rate | 600 GPD (Gallons Per Day) | 75 GPD | 90 GPD | 75 GPD |
| Filtration Stages | 6 Stages (Sediment, Carbon, RO, Alkaline) | 5 Stages (Sediment, Carbon, RO) | 7 Stages (Sediment, Carbon, UV, Alkaline) | 6 Stages (Sediment, Carbon, Alkaline) |
| Alkaline Enhancement | Yes (Adds essential minerals, pH > 8.5) | No | Yes (Alkaline filter for pH adjustment) | Yes (Adds calcium minerals for alkalinity) |
| Tankless Design | Yes | No (Comes with a 3.2-gallon tank) | No (Comes with a built-in storage tank) | No (Comes with a 4-gallon tank) |
| TDS Monitor | Smart Faucet with Real-Time TDS Display | No | No | No |
| Drain Ratio | 2:1 (Pure to Drain) | 3:1 (Higher waste ratio) | 1:1 (Minimal water waste) | 3:1 (Higher waste ratio) |
| Certifications | NSF/ANSI 58, NSF/ANSI 42 | NSF/ANSI 58, WQA Gold Seal | NSF/ANSI Certified | NSF Certified |
| Installation | DIY Friendly (Easy, Quick Install) | Moderate (Requires more tools) | Easy with Quick Connect Fittings | Moderate (Some plumbing skills required) |
| Cost of Replacement Filters | Moderate (Alkaline filters can be pricey) | Low (Affordable replacement filters) | High (More filter stages, higher cost) | Low (Standard replacement cost) |
| Eco-Friendly Features | Yes (Low water waste with 2:1 ratio) | No | Yes (1:1 ratio reduces waste) | No |
Summary of Key Differences:
- OnlyPure RO System stands out for its high flow rate (600 GPD) and tankless design, making it perfect for high water consumption and saving under-sink space. It also features a real-time TDS monitor for water quality tracking.
- iSpring RCC7 is a budget-friendly option with a lower flow rate and fewer filtration stages, but it still delivers excellent water purification at a lower cost.
- Home Master TMAFC-ERP is designed for those who prioritize low water waste (1:1 ratio) and additional filtration with UV and alkaline stages, making it ideal for homes with well water or those needing extra purification.
- APEC ROES-PH75 offers alkaline water with affordable replacement filters but lacks smart features like a TDS monitor and eco-friendly water-saving ratios.
What We Liked
- Exceptional water purity and alkalinity
- High flow rate of 600 GPD for continuous supply
- A compact, tankless design saves space.
- Easy DIY installation and filter changes
- Smart faucet with a TDS monitor for water quality tracking
- Eco-friendly and cost-effective with a 2:1 drain ratio
- Noticeable improvement in taste and odor compared to tap water
Areas for Improvement
While the product offers excellent performance, there are a few areas where improvements could be made:
- Plumbing Knowledge Required: The initial installation may require some technical know-how.
- Replacement Filter Cost: Over time, replacing the filters could add up.
- No Auto-Cleaning Feature: An automatic flushing cycle would make maintenance even easier.
Final Thoughts
The OnlyPure Reverse Osmosis System with Alkaline Filter has been a game-changer for our household. It has provided us with a continuous supply of ultra-pure, pH-balanced water, eliminating the need for bottled water deliveries or inefficient pitcher filters.
The system’s advanced filtration stages, combined with the alkaline enhancement, have yielded noticeable improvements in taste, odor, and overall water quality. The high flow rate and smart faucet with TDS monitoring add convenience and peace of mind, ensuring we always have access to the purest water possible.
While the initial installation required some plumbing knowledge, the long-term benefits of the OnlyPure system far outweigh this minor hurdle. The compact, tankless design saves valuable space, and the eco-friendly drain ratio makes it a sustainable and cost-effective solution over time.
Overall, we highly recommend the OnlyPure Reverse Osmosis System to anyone seeking a reliable, high-performance water filtration solution for their home or commercial space. It delivers on its promises of exceptional water quality, alkalinity, and high-capacity flow, making it a worthwhile investment in your health and hydration needs.
Price: $399.98
Where to buy: Buy it on Amazon
Hi, I’m Engineer Hm Jamal, founder of Green Mark Engineering. With 13 years in the home improvement industry, I’m passionate about creating sustainable, high-quality solutions for homes. My focus is on making your home improvement experience smooth and successful. Whether it’s a renovation or a new project, I’m here to ensure it’s done right.
