When it comes to safeguarding your family’s health, buying a water purifier is no longer a luxury— it’s a necessity. With a rise in water contamination, a reliable purifier is essential for clean drinking water. However, many people rush into this important purchase and end up making expensive mistakes. They are often influenced by flashy ads or a low-priced water purifier for home price, and fail to consider what truly matters. This blog post will help you avoid these common pitfalls. We’ll show you the biggest mistakes people make when buying a water purifier so you can make a smart, informed decision that protects your health and your wallet for years to come. Let’s take a look at the mistakes to stay on the safe side!
Also Read: How To Choose The Best Water Purifier For Home In Delhi
Not Checking Your Water Quality First
This is the most common and critical mistake. You wouldn’t buy medicine without knowing what’s wrong with you, so why buy a water purifier without knowing what’s in your water?
The source of your water, whether it’s from the city municipality or a private borewell, is key. The most important thing to check is the TDS level (Total Dissolved Solids). This number tells you how many dissolved minerals and contaminants are in your water.
1. Low TDS (less than 500 ppm)
Municipal water usually falls into this category. It’s generally cleaner and has fewer dissolved solids. A simple UV water purifier or a UV and UF water purifier is often enough. These purifiers are great at killing germs, viruses, and bacteria, but they don’t remove dissolved solids.
2. High TDS (more than 500 ppm)
Borewell or groundwater often has a high TDS level. This water is usually hard and contains heavy metals, pesticides, and other harmful dissolved impurities. A simple UV purifier won’t work here. You need an RO water purifier to effectively reduce the TDS level and remove these contaminants. An advanced RO water filter will not only clean the water but also balance its mineral content.
Many people with high-TDS water from a borewell mistakenly buy a cheap UV filter, thinking it’s enough. They later find the water tastes bad and isn’t truly pure. On the other hand, someone with clean municipal water might overspend on an advanced RO water filter that they don’t need, which can also strip away healthy minerals.
Also Read: TDS For Drinking Water: How Much TDS Is Healthy In Water?
2. Focusing Only on Price, Not Features
Everyone loves a good deal, but choosing a water purifier based only on its price is a huge mistake. A cheap model might save you money at first, but it can cost you much more in the long run.
- Purification Technology: A low-cost model might skip essential purification steps. The best water purifier for your home will have multiple stages like a sediment filter, carbon filter, RO membrane, and UV sterilisation. Each stage plays a vital role in making sure your water is safe and tastes good. A cheaper model might have a less effective RO membrane or might not include a UV stage. When you buy a RO purifier, check for the quality of the RO membrane itself, as it is the most crucial part.
- Filter Quality: The quality of the filters directly affects how well the purifier works and how long it lasts. Cheaper filters need to be replaced more often, which increases the total cost of your RO water purifier over time.
- Storage Tank: A small storage tank might seem fine, but for a large family, it can be a daily struggle. You’ll constantly be waiting for the tank to refill, which is inconvenient and puts more strain on the machine.
4. Ignoring Maintenance Costs
The initial purchase price of a water purifier is only the beginning. The hidden costs of filter replacement and servicing can be a major surprise for unprepared buyers.
- Filter Replacement: The biggest ongoing cost is replacing the filters, especially the RO membrane. The sediment filter, carbon filter, and RO membrane all have a limited life and need to be replaced regularly. The cost of these parts varies a lot between brands. Before you buy a RO purifier, always ask about the lifespan of the filters and how much the replacements cost.
- Servicing: Just like a car, a water purifier needs regular service to work its best. Many buyers forget to factor in the cost of this service. Some companies offer annual maintenance contracts (AMC), which can be a great way to manage costs and ensure your purifier is always in top condition.
Also Read: 9 Benefits Of Renting An RO Water Purifier For Home
5. Not Considering Household Size & Usage
A single person uses far less water than a family of five. Yet, many people overlook this simple fact and end up with an appliance that doesn’t fit their needs.
- Large Family Needs: If you have a large family, constant water usage means you need a purifier with a larger storage tank (8-12 litres). This ensures you always have purified water ready for drinking and cooking. A smaller purifier for a large family will be overworked, which can lead to frequent breakdowns and higher maintenance costs.
- Compact Needs for Bachelors/Couples: For a single person or a couple living in a small apartment, a smaller, more compact purifier with a 5-6 litre tank is perfect. It saves space and uses less energy. There’s no point in buying a water purifier with a huge tank if it’s only for one or two people.
Also Read: Side Effects Of Chlorine In Drinking Water: Things To Know
6. Skipping Warranty and Service Support
You’ve found the perfect purifier, but what if it breaks down? Many people are so focused on features and price that they forget to check the most important part: after-sales service.
- Brand Reputation: A good warranty and responsive customer support are non-negotiable. Look for brands with a strong reputation for service. A long warranty period shows that the brand trusts its own product.
- Doorstep Servicing: The convenience of doorstep service is a huge plus. It saves you from the hassle of carrying your purifier to a service centre. Many companies now offer quick, at-home service, and some even have AMCs that include unlimited service visits.
7. Overlooking Additional Features
In their search for a cheap water purifier for home price, many buyers ignore extra features that can make a big difference.
- Alkaline/Mineralizer: Many RO purifiers, while removing harmful things, also remove essential minerals like calcium and magnesium. An alkaline or mineralizer feature adds these back, making the water not just clean but also healthy. When you’re looking for the best water purifier, this is a feature you should seriously consider.
- Smart Display: A smart display can show you the TDS level, how much life is left in the filters, and even tell you when it’s time for service. These features are very convenient and help you stay on top of maintenance.
- Dispensing Modes: Some purifiers offer different ways to get water, like a quick glass fill or a bottle fill. These small features can make a big difference in your daily life. It’s a common mistake to realise later that you need these features.
Also Read: Is RO Water Good For Your Health? Find Out All The Answers!
8. Not Exploring Flexible Options Like Renting
Buying a water purifier isn’t always the best choice. In today’s world, renting has become a smart and flexible option, especially for people who are unsure about their long-term needs or don’t want to pay a high upfront cost.
- Lower Upfront Cost: Renting a purifier means you don’t have to pay a large amount of money all at once. This is a great choice if you have a tight budget or live in a rental home.
- No Maintenance Hassle: Rental companies usually handle all the maintenance, filter replacements, and service calls at no extra cost. This removes the stress of remembering service dates and managing expenses. For example, some companies offer rental purifiers for a low monthly fee that includes all maintenance.
| Mistake People Make | Why It’s a Problem | Better Choice Instead |
|---|---|---|
| Not testing water quality (TDS, source) | Wrong purifier type chosen (RO when UV would work, or vice versa) | Test TDS level first; match purifier (RO for high TDS, UV for municipal water, alkaline for acidic water) |
| Only looking at price | Cheapest purifier may lack essential features or quality | Balance price with features like storage, mineralizer, and purification tech |
| Ignoring maintenance cost | Filters & servicing can add ₹3,000–₹5,000 yearly | Check AMC plans or choose rental plans with maintenance included |
| Buying wrong size | Small tank = daily refills; big tank wasted for single users | Match purifier size to family size & daily water use |
| Skipping warranty & service | Repairs can be costly; poor service = downtime | Choose brands with doorstep service and long warranty |
| Overlooking extra features | Later regret not having alkaline/mineralizer | Compare add-ons before purchase; look at long-term health benefits |
| Not considering rental options | High upfront cost makes buying heavy on budget | Rent a purifier (starts at ₹495/month on RentoMojo) to save money & enjoy flexibility |
Conclusion
Choosing the best water purifier for your home should be a careful and well-thought-out process, not a rushed decision. By avoiding these common mistakes, you can make a choice that is not only good for your finances but, more importantly, for your family’s health.
Remember to first check your water quality, compare features instead of just prices, and consider the hidden costs of maintenance. Look into the brand’s service reputation and explore flexible options like renting. By doing your homework, you can confidently buy a water purifier that will provide you with clean, safe drinking water for many years to come. Or you can rent a water purifier and see how it suits your needs before making the big purchase. Check out RentoMojo for more information!
Frequently Asked Questions
1. What to consider when buying a water purifier?
You should first check your water’s TDS level. Next, look at the purification technology (RO, UV, UF) that fits your water quality. Also, consider the storage tank size for your family, maintenance costs, and after-sales service before making a decision.
2. Is RO water safe for the kidneys?
Yes, for people with normal kidney function, RO water is safe. However, prolonged consumption of demineralised RO water can be harmful as it lacks essential minerals. Look for purifiers that add back minerals to ensure balanced, healthy water.
3. What should you look for when buying a water filter?
When buying a water purifier, look at your water quality (TDS level), the purifier’s technology (RO, UV), storage capacity, and the brand’s after-sales service. Don’t focus only on the initial water purifier for home price; consider long-term maintenance costs and filter replacement expenses.
4. Which is better, UV or MF?
For your FAQ, UV and MF are different technologies. UV purifies by killing germs with ultraviolet light, but it doesn’t remove impurities. MF, or microfiltration, uses a physical membrane to filter out bacteria and other particles. For best results, it’s often best to use a purifier that combines both technologies.
5. What is TDS in water?
TDS stands for Total Dissolved Solids. It’s the total amount of all organic and inorganic substances, like minerals, salts, and metals, dissolved in a given volume of water. High TDS levels can affect water taste and indicate the presence of harmful contaminants.
