Under Sink RO Systems: Everything You Need to Know

Water purification is a crucial aspect of maintaining a healthy lifestyle, and Reverse Osmosis (RO) systems have become the preferred choice for many households. Among various types of RO purifiers, Under Sink RO systems are gaining popularity due to their space-saving design and high efficiency. In this comprehensive guide, we will explore everything about Under Sink RO systems, their benefits, working principles, and the best options available in the market.

What is an Under Sink RO System?

An Under Sink RO system is a compact water purification unit installed beneath the kitchen sink. Unlike traditional countertop RO systems, these are designed to save space while delivering high-quality purified water directly from a dedicated faucet. They are ideal for homes with limited space and for those who prefer a clutter-free kitchen.

How Does an Under Sink RO System Work?

Under Sink RO systems operate on the principle of Reverse Osmosis, which removes impurities, contaminants, and dissolved solids from water through a semi-permeable membrane. The process involves multiple filtration stages:

1. Sediment Filter – Removes dirt, sand, rust, and other large particles.

2. Carbon Filter – Absorbs chlorine, pesticides, and organic compounds, improving taste and odor.

3. RO Membrane – The core of the purification process, eliminating heavy metals, bacteria, and dissolved solids.

4. Post Carbon Filter – Further enhances water taste and removes any residual odors.

5. Storage Tank – Stores purified water for convenient access.

6. Mineral Cartridge (Optional) – Re-mineralizes water, adding essential minerals like calcium and magnesium.

Benefits of Using an Under Sink RO System

1. Space-Saving Design

One of the primary advantages of an Under Sink RO system is its compact design. It fits conveniently under the kitchen sink, keeping your countertop free from bulky appliances.

2. High-Quality Water Purification

With multi-stage filtration, these systems effectively remove contaminants such as lead, chlorine, fluoride, and harmful bacteria, ensuring safe and healthy drinking water.

3. Dedicated Faucet for Purified Water

Most Under Sink RO systems come with a separate faucet for dispensing purified water, preventing cross-contamination with tap water.

4. Better Taste and Odor Removal

The activated carbon filters eliminate chlorine and other chemicals that affect the taste and odor of water, providing clean and refreshing drinking water.

5. Cost-Effective Solution

Compared to bottled water and countertop RO systems, Under Sink RO systems offer a cost-effective and environmentally friendly solution for long-term use.

Best Under Sink RO Systems Available in India

If you’re looking for the best Under Sink RO systems, here are some top recommendations:

1. Watro Care Under Sink RO – 5 Liter Storage, White

• 5-liter storage capacity

• Multi-stage filtration with RO + UV + UF technology

• Compact and durable design

• Brand Name	Watro Care
  Model Number	Under Sink RO
  Usage/Application	Domestic
  Color	White
  Material	ABS Food Grade Plastic
  Capacity	5 Liter
  Power Source	Electric
  Maximum Flow Rate	5 Liters Per Hour
  Purification Stages	2
  Mounting	Under Sink RO
  Country Of Origin	Made In India
  Weight	11 KG 300 Gram
  Dimension	58.4 x 50.8 x 30.5 CM

2. Mistry No-Bact Under Sink RO – 12 Liter Storage, White

• Large 12-liter storage tank

• Advanced RO filtration technology

• Ideal for large families

3. Platinum Wasser Ultra-6 Reverse Osmosis Filtration System

• 6-stage advanced filtration

• Removes up to 99% contaminants

• High-flow rate for faster water purification

4. Aqua Ultra RO Copper Technology Smart Kitchen Under Sink RO

• Copper-enriched water for better health

• Hydro-static storage tank

• Smart and compact design

Installation and Maintenance Tips

1. Installation Process

Most Under Sink RO systems come with a DIY installation kit. However, professional installation is recommended to ensure proper fitting and functionality. The basic installation steps include:

• Fixing the pre-filters and RO membrane.

• Connecting the system to the main water supply.

• Installing the dedicated faucet on the sink.

• Ensuring proper drainage for wastewater.

2. Maintenance Tips

• Change Filters Regularly: Sediment and carbon filters should be replaced every 6-12 months, while the RO membrane lasts around 2-3 years.

• Clean Storage Tank: Periodically clean the storage tank to prevent bacterial growth.

• Check for Leaks: Inspect the system for leaks and ensure all connections are secure.

• Sanitize the System: Regular sanitization keeps the RO system free from microbial contamination.

Frequently Asked Questions (FAQs)

1. Is an Under Sink RO System Better than a Countertop RO?

Yes, an Under Sink RO system saves space, offers better filtration efficiency, and has a dedicated faucet, making it a preferred choice.

2. Does an Under Sink RO System Waste Water?

Like all RO systems, Under Sink RO units produce wastewater. However, advanced models come with a waste-to-pure water ratio of 1:1, significantly reducing water wastage.

3. Can I Install an Under Sink RO Myself?

While DIY installation is possible, professional installation ensures correct setup and avoids any potential issues.

4. Does the Water Taste Different?

Yes, purified water from an Under Sink RO tastes fresher and cleaner as it removes chlorine, impurities, and unwanted minerals.

Conclusion

Investing in an Under Sink RO system is a smart decision for households looking for a compact, efficient, and reliable water purification solution. With multiple advanced models available in the market, choosing the right one depends on your storage needs, purification stages, and budget. Explore the best Under Sink RO systems and ensure your family gets access to clean and healthy drinking water. For more details and to purchase your Under Sink RO system, check out the best options available here: Under Sink RO Systems