Top 10 Benefits of an RO Purifier: What is RO, UV, UF, TDS in Water Purifier

June 21, 2025 ARTICLES

Understanding the Basics of Water Purifiers

Why Water Filtration Is Essential

Water is life—but only when it’s safe. Unfortunately, the tap water many of us rely on can contain invisible contaminants, including bacteria, heavy metals, pesticides, and dissolved salts. This is where water purifiers come into play. They not only improve taste and clarity but also ensure that your drinking water is free from harmful substances.

Types of Contaminants in Drinking Water

  • Biological: Bacteria, viruses, protozoa

  • Chemical: Fluoride, chlorine, arsenic, lead

  • Physical: Dust, rust, sediments

  • Dissolved Solids: Calcium, magnesium, salts

What is an RO Purifier?

How RO Technology Works

RO stands for Reverse Osmosis. It’s a purification process where water passes through a semi-permeable membrane, filtering out:

  • Dissolved salts (TDS)

  • Heavy metals like arsenic, lead, mercury

  • Microorganisms

This process effectively separates impurities from water, leaving it safe and clean.

Advantages of Using RO

  • Removes 99% of contaminants

  • Enhances taste by removing bitterness

  • Ideal for areas with high TDS in water

  • Great for urban and semi-urban households

What is UV in Water Purifiers?

Ultraviolet Purification Explained

UV purification uses ultraviolet light to kill harmful bacteria, viruses, and parasites. It doesn’t remove particles or TDS but sterilizes water so it’s microbiologically safe.

Role of UV in Eliminating Microorganisms

  • Destroys DNA of microbes

  • Works best as a secondary purification after RO

  • Requires electricity to operate

What is UF in Water Purifiers?

Ultrafiltration Membrane Basics

UF stands for Ultrafiltration, which uses a membrane to remove bacteria and viruses, but it doesn’t filter dissolved solids. Unlike RO, it doesn’t need electricity and retains essential minerals.

When to Prefer UF Over RO

  • Ideal for areas with low TDS levels

  • Great for municipal water that’s already treated

  • More affordable and energy-efficient

What is TDS in Water Purifiers?

Meaning of Total Dissolved Solids

TDS refers to the concentration of dissolved ions in water, like calcium, magnesium, potassium, and sodium. It’s measured in ppm (parts per million).

Ideal TDS Levels for Safe Drinking Water

TDS Level (ppm) Water Quality
50-150 Excellent
150-300 Good
300-500 Acceptable
500+ Unsafe for consumption

RO vs UV vs UF: Key Differences Explained

Comparative Chart

Feature RO UV UF
Removes TDS ✅ ❌ ❌
Kills Microorganisms ✅ ✅ ✅
Removes Bacteria ✅ ✅ ✅
Needs Electricity ✅ ✅ ❌
Retains Minerals ❌ ✅ ✅

Which Purifier Is Right for Your Home?

  • High TDS Areas: RO + UV

  • Low TDS Areas: UF or UV

  • Borewell Water: RO

  • Municipal Water: UF or UV

Combined Purification Systems: RO + UV + UF + TDS

How Multi-Stage Systems Work

Modern purifiers often combine RO, UV, and UF technologies to ensure comprehensive purification. This multi-layered approach removes physical impurities, chemical toxins, and biological pathogens.

Benefits of Integrated Filtration

  • All-in-one safety

  • Improved water taste and clarity

  • Balanced mineral content

Importance of TDS Controller in RO Systems

TDS Controller vs TDS Adjuster

A TDS controller maintains optimum mineral levels, while a TDS adjuster allows manual customization. Both help preserve taste and ensure that essential nutrients aren’t removed.

How It Affects Taste and Quality

Without a TDS controller, RO-purified water can taste flat or bland. A well-balanced TDS level makes water not just safe—but also pleasant to drink.

Installation Guide: Choosing the Right RO Purifier for Your Needs

Wall-Mount vs Under-Sink Models

Key Features to Consider

  • Water storage capacity

  • Filter life indicator

  • TDS controller

  • Service and maintenance support

Maintenance Tips for RO Purifiers

Filter Replacement Schedule

  • Pre-filter: Every 3–6 months

  • RO membrane: Every 1–2 years

  • Post-carbon filter: Once a year

Cleaning and Servicing Tips

  • Clean storage tank every month

  • Ensure filters aren’t clogged

  • Book annual service with certified technicians

RO Purifier Buying Guide

What to Look for When Shopping

  • Multi-stage purification

  • BIS and NSF certifications

  • Transparent water tank

  • Good customer reviews

Trusted Brands and Certifications

Always buy from certified dealers or online platforms like:
🔗 Romegamart Water Purifier Collection

Where to Buy Reliable RO Purifiers Online

Check trusted platforms like Romegamart for verified, high-quality purifiers:

Cost vs Value: Are RO Purifiers Worth the Investment?

Initial Cost Breakdown

  • RO Units: ₹7,000–₹20,000

  • Annual Maintenance: ₹1,500–₹3,000

Long-Term Savings and Health Benefits

  • Fewer doctor visits

  • Avoid bottled water costs

  • Safe drinking water year-round

Real User Reviews and Testimonials

What Customers Are Saying

“After installing my RO+UV purifier from Romegamart, the water taste improved instantly!”

“No more stomach issues, and the kids love the taste!”

Before and After RO Usage Experiences

  • Better digestion

  • Clearer skin

  • Improved hydration levels

Environmental Impact of RO Purifiers

Water Wastage Concerns

Traditional RO systems waste 3–4 liters of water per liter purified. Look for models with:

  • Recovery technology

  • Reject water reuse features

Eco-Friendly Alternatives and Solutions

  • Use reject water for cleaning floors

  • Water plants with waste outlet (non-edible)

FAQs About RO Purifiers and Water Filtration

1. What is the full form of RO, UV, and UF?

RO = Reverse Osmosis, UV = Ultraviolet, UF = Ultrafiltration.

2. Is RO water good for health?

Yes, when balanced with essential minerals through a TDS controller.

3. Can I use RO water for cooking?

Absolutely. It’s clean, safe, and enhances taste.

4. How often should I replace the filters?

Typically every 6 to 12 months depending on usage.

5. Does RO waste a lot of water?

It does, but you can reuse the waste water for non-drinking purposes.

6. Which is better: RO or UV purifier?

RO is better for high TDS water; UV is ideal for treated municipal water.

Conclusion: Making the Smart Choice for Healthy Hydration

Choosing the right RO purifier isn’t just about clean water—it’s about investing in your family’s health. With a clear understanding of RO, UV, UF, and TDS, you’re now empowered to make the best choice. Explore reliable options at Romegamart and enjoy pure, healthy water every day.