Why Drinking Water from a Water Purifier is Better Than Using Local Water Cans: Health and Economic Benefits

Published on : May 20, 2026

In many urban households, the choice of drinking water often comes down to two options: installing a water purifier or relying on packaged water cans. This decision is closely linked to concerns around safe water, rising water contamination, and overall health factors that influence daily consumption. While some consumers prefer water cans, assuming they provide cleaner water, the journey from sourcing to delivery involves multiple stages, making it harder to ensure consistent quality.

On the other hand, water purifiers use advanced purification technologies to treat water directly at home, addressing impurities at the source. This not only offers better control over water quality but also supports safer and more reliable access to drinking water. When hygiene, convenience, and long-term value are considered together, it becomes clear why many households are gradually shifting towards water purifiers for the health and safety of their family.
   

Everyday Convenience and Long-Term Economic Benefits of Using a Water Purifier



1. Lower Long-Term Cost

While buying water cans may seem convenient initially, the recurring expense adds up over time. Regular purchases, along with delivery charges in some cases, can make it a costly long-term option.

In comparison, a water purifier is typically a one-time investment with periodic maintenance. Even after accounting for filter replacements and servicing, it often works out to be more cost-effective over the long run than continuously buying packaged water.

Let’s see a comparison of how the cost of drinking water from cans is higher than water purifier in the long run:

Economic Comparison of Water Cans vs Water Purifier

Assumptions

  • Household size: 4 people
  • Daily water consumption (drinking & cooking): 30 litres/day
  • Monthly consumption:
    30 × 30 = 900 litres/month

Per capita consumption of water per day is 5l, taking 4 members in a household equals 20l and additional 10 l for cooking

https://ijcrt.org/papers/IJCRT2307354.pdf


Option A: Water Cans

Cans required per month

[900 ÷ 20 = 45 cans]

Monthly cost

[45 x 40 = ₹1800]

[45 x 95 = ₹4275]

Yearly cost

Local cans [1800 x 12 = ₹21,600]

Bisleri cans [4275 x 12 = ₹51,300]

Option B: Water Purifier

  • RO purifier cost (one-time): ₹15,000 (Average selling price of Mid-range RO Water purifier in India)
  • Annual Maintenance Contract (AMC): ₹5,000 (Average of AMCs compared for top water purifier brands in India)

First-year cost

[15,000]

From the second year onwards

AMC = ₹5,000

5-Year Cost Comparison


Option

Option 5-Year Cost Calculation Total Cost
Water Cans Local water can ₹1,08,000
21,600 × 5  
Bisleri water can ₹2,56,500
51,300 × 5  
Purifier 15,000 + 5,000 × 4 ₹35,000

Savings Over 5 Years

  • Savings with purifier:
    [108,000 – 35,000 = ₹73,000]

[2,56,500-35,000 = ₹2,21,500]


Instant and Effortless Access to Safe Drinking Water

A water purifier brings unmatched convenience by giving you safe drinking water at the push of a button. Unlike water cans whose handling can be very tedious as they require reordering, lifting, pouring and storage space, a purifier removes the need for any additional hassle or manpower. 

Many advanced purifiers also offer instant hot water along with ambient water, making everyday tasks like preparing tea, coffee, or baby food quick and seamless. With Hot RO or UV water purifiers making hot water available within seconds, your routine gets effortless while ensuring consistent access to safe drinking water.

3. An Eco-friendly Alternative to Water Cans

Water cans contribute significantly to plastic usage and environmental waste. Even though the cans may be reused, frequent handling can degrade plastic quality over time. Using a water purifier reduces dependency on plastic containers and supports a more sustainable lifestyle.

A.O. Smith ProPlanet series water purifiers are a planet-friendly choice as they are designed to save more water compared to regular RO water purifiers and are India’s 1st 5-star rated water purifier, certified by IAMPO. This means you not only reduce plastic use but also avoid unnecessary water wastage, helping save up to 9000 liters of water annually. For households looking to combine advanced purification with sustainable living, the A.O. Smith ProPlanet Series offers an ideal solution.


The Unreliability of Water Can Sources vs the Reliability of Water Purifiers

For many households, water cans may seem like a convenient solution, but the source and handling of this water are not always fully transparent. From sourcing and purification to storage and transportation, water passes through multiple stages before reaching homes. Since these processes are not always visible, maintaining consistent quality can be challenging.

In contrast, water purifiers offer a more reliable and transparent approach by treating water directly at home.

  1. O. Smith water purifiers have an 8-stage purification with RO+ Silver Shield technology that makes water baby-safe. They use patented side stream RO membrane certified to global standards such as NSF 58 and NSF 372, ensuring high levels of drinking water safety. They are also tested for microplastic reduction as per NSF 42:2021 and NSF 401:2022 in NABL-accredited labs, helping address emerging contaminants effectively.

Additionally, all A. O. Smith water purifiers are designed to be BPA-free, ensuring that the water you consume is not exposed to harmful chemicals from plastic components.             


Conclusion


While local water cans may seem convenient, they often come with uncertainties related to water quality, hygiene, and recurring costs. From reducing the risk of contamination to lowering long-term expenses and minimizing plastic waste, installing a water purifier is both a health-conscious and economically sensible choice for your family. Over time, convenience, reliability, and savings make it a worthwhile investment for families seeking dependable access to clean drinking water.

With advanced purification technologies that provide baby-safe water, modern design and convenience features like hot water, choose an A.O. Smith water purifier designed to deliver safe, pure, and healthy hydration for your entire family. 

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