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Short answer: For most borewell homes, the KENT Grand (about ₹12,999) is the safest pick. It has RO plus UV in the storage tank, a TDS controller, and KENT’s service network reaches almost every district. If you want to waste less water and get a longer warranty, buy the Pureit Eco Elite 2X (about ₹12,999). It has a 2-year warranty that covers every filter, and Pureit claims up to 50% water savings. On a budget under ₹8,000, the Aquaguard Sure Delight NXT does the basics well. But first check your TDS, because above about 2,000 ppm no home RO will cope on its own. Prices checked on Amazon on 10 November 2026.
Borewell water is the hardest job a home water purifier does in India. The same bore can read 400 ppm of dissolved salts in August and 1,400 ppm in May, once the water table drops. It carries hardness that scales up a membrane, sometimes iron that turns everything orange, and in some districts fluoride or arsenic that you can’t taste at all.
So this guide works differently from a normal “top 10” list. Step one is a two-minute test you can do at home. Step two is matching the purifier to the number you get. We compared the RO purifiers people actually buy on Amazon for borewell supply. We read their manuals and warranty terms, and the complaints that keep coming up in reviews: membranes dying in six months, high water wastage, and service visits that never come.
Step 1: Test your water before you buy anything
Buy a digital TDS meter. They cost ₹200 to ₹400 and many purifiers ship with one. Dip it in a glass of tap water from the bore. The reading tells you what kind of purifier you need:
| Your TDS (ppm) | What it means | What to buy |
|---|---|---|
| Under 200 | Soft water, usually municipal | UV + UF is enough. RO would waste water. |
| 200–500 | Mildly hard | RO + UV with a TDS controller or mineral cartridge |
| 500–1,500 | Typical borewell | RO + UV, with a sediment pre-filter on the inlet |
| 1,500–2,000 | Very hard or salty | A high-TDS RO, a pre-filter and a yearly membrane change |
| Above 2,000 | Beyond home RO | Get a lab test and fit a softener or iron filter before the RO |
For context, India’s drinking water standard (IS 10500) sets 500 mg/L of TDS as the acceptable limit and 2,000 mg/L as the most that’s permissible when there’s no other source. If your borewell water stains buckets orange or smells of rotten eggs, ask for a lab test that covers iron, hardness and fluoride. Many state public health engineering departments and NABL-accredited labs do this for a few hundred rupees.
Our picks at a glance
- Best overall for borewell: KENT Grand, RO + UF + UV in the tank, with a TDS controller
- Longest warranty: Pureit Eco Elite 2X, with 2 years covering all filters
- Wastes the least water: Aquaguard Delight NXT Aquasaver, claiming up to 60% savings
- Every drop through RO: AO Smith Z5+, with a side-stream RO membrane
- Best under ₹9,000: Pureit Wave Plus, which ships with a TDS meter
- Cheapest from a big brand: Aquaguard Sure Delight NXT, about ₹7,763
- Hot and normal water: AO Smith Z9 Pro, which also dispenses at 45 °C and 80 °C
Side-by-side comparison
| Purifier | Technology | Storage | Warranty | Price |
|---|---|---|---|---|
| KENT Grand | RO + UF + UV tank + TDS control | 7.5 L | 1 year | ~₹12,999 |
| Pureit Eco Elite 2X | RO + UV + MF + alkaline | 10 L | 2 years, all filters | ~₹12,999 |
| Aquaguard Delight NXT Aquasaver | RO + UV + UF + mineral | 6.2 L | 1 year + service plan | ~₹9,402 |
| AO Smith Z5+ | Side-stream RO + UV LED + copper | 5 L | 1 year comprehensive | ~₹13,404 |
| Pureit Wave Plus | RO + UV + mineral | 7 L | Check listing | ~₹8,399 |
| Aquaguard Sure Delight NXT | RO + UV | 6 L | 1 year + service plan | ~₹7,763 |
| AO Smith Z9 Pro | RO + silver membrane + hot water | 10 L | 1 year comprehensive | ~₹20,499 |
The 7 best water purifiers for borewell water, reviewed
1. KENT Grand – Best overall for borewell
KENT built its name on borewell and tanker water in North India, and the Grand is the model its technicians install most often. It runs the water through RO and UF. A TDS controller lets a little of the mineral content back in, so the water doesn’t taste flat. A UV LED inside the storage tank keeps stored water from picking up bacteria while it sits overnight.
It purifies up to 20 litres an hour and holds 7.5 litres, which covers a family of four through a power cut. The warranty is a plain 1 year, so price an annual maintenance plan into your budget. The real reason to pick KENT for a borewell home is service reach: in a tier-3 town, the brand whose technician actually turns up matters more than any extra filter stage.
Key specs
- RO + UF + TDS control + UV LED in the tank
- Storage: 7.5 L, flow up to 20 L/hour
- Rated for borewell, tanker and municipal water
- Warranty: 1 year
What we like
- Proven on borewell water
- TDS control keeps the taste natural
- One of the widest service networks
What could be better
- Only a 1-year warranty
- Wastes more water than the newer water-saving models
Buy it if: you’re in a small town or a new colony on borewell supply and want a technician who will reliably show up.
2. Pureit Eco Elite 2X – Longest warranty
The Eco Elite 2X has the most generous cover here: 2 years, including every filter. On borewell water, filters and membranes are exactly what wears out first, so this saves real money in year two. Pureit claims up to 50% water savings (in its own lab tests), filter alerts 15 days before replacement is due, and a large 10-litre tank.
It purifies up to 24 litres an hour, the fastest here, and adds an alkaline mineraliser after the RO. Ignore the health claims made for alkaline water. What it does usefully is put back some calcium and magnesium, so the water tastes like water rather than distilled water.
Key specs
- RO + UV + MF + alkaline mineraliser, 8 stages
- Storage: 10 L, flow up to 24 L/hour
- Up to 50% water savings (Pureit’s lab claim)
- Warranty: 2 years, all filters covered
What we like
- 2-year warranty that includes filters
- Large tank and fast flow
- Lower water wastage
What could be better
- Pureit’s service network is thinner than KENT’s or Aquaguard’s in small towns
- Costs as much as the KENT Grand
Buy it if: you live in a city with good Pureit service and want the lowest running cost over two years.
3. Aquaguard Delight NXT Aquasaver – Wastes the least water
Every RO throws away some water to flush out the salts it removes, and with high-TDS borewell water an ordinary RO can waste two to three litres for every litre you drink. Aquaguard’s Aquasaver claims up to 60% savings over a regular RO, the biggest claim here.
It’s a 9-stage RO + UV + UF purifier with a mineral cartridge. It comes with a free service plan worth ₹2,000: installation, one maintenance visit and unlimited repair visits in the first year. Eureka Forbes, which makes Aquaguard, has a service network as wide as KENT’s. The 6.2-litre tank is on the small side for a big family.
Key specs
- RO + UV + UF + mineral charge, 9 stages
- Storage: 6.2 L
- Up to 60% water savings vs a regular RO (Aquaguard’s claim)
- Cartridge life up to 1 year or 6,000 L
- Warranty: 1 year + free service plan
What we like
- Lowest water wastage claim
- Free first-year service plan
- Wide service network
What could be better
- Smaller tank
- Expect cartridge changes sooner on very hard water
Buy it if: water is scarce where you live, or you pay for tanker water.
4. AO Smith Z5+ – Every drop through RO
Some cheaper purifiers send part of the water around the RO membrane and only treat it with UV, to save water and keep the taste up. AO Smith’s patented side-stream RO pushes 100% of the water through the membrane. On borewell supply, where the risk is dissolved salts and heavy metals rather than germs, that matters.
The Z5+ adds a UV LED, a copper mineraliser and a smart display that warns you when filters are due. AO Smith’s 1-year comprehensive warranty covers the RO membrane, filters and electrical parts, which is better than a parts-only warranty. The 5-litre tank and 15 litres an hour are modest.
Key specs
- Side-stream RO + UV LED + copper mineraliser, 8 stages
- Storage: 5 L, flow up to 15 L/hour
- ARTMAX water recovery
- Warranty: 1 year comprehensive (membrane and filters included)
What we like
- All water goes through RO
- Warranty covers membrane and filters
- Water-recovery technology
What could be better
- Smallest tank here
- Pricier than the KENT Grand
Buy it if: your borewell report shows heavy metals, fluoride or very high TDS and you want no shortcuts.
5. Pureit Wave Plus – Best under ₹9,000
The Pureit Wave Plus is a sensible budget RO + UV with a mineral cartridge, a 7-litre tank and 20 litres an hour of output. Pureit claims up to 45% water savings. It’s wall-mountable, and it ships with a TDS meter, which is exactly the tool this guide asks you to use.
The filter life is rated at 6,000 litres, which a family of four uses in about a year. The listing doesn’t state the warranty clearly, so confirm it on the product page before you buy.
Key specs
- RO + UV + mineral, 6 stages
- Storage: 7 L, flow up to 20 L/hour
- Up to 45% water savings (Pureit’s claim)
- TDS meter in the box
What we like
- Good value
- TDS meter included
- Compact wall-mount body
What could be better
- Fewer stages than the premium models
- Warranty terms not clear on the listing
Buy it if: your TDS is below about 1,200 ppm and you want a reliable RO under ₹9,000.
6. Aquaguard Sure Delight NXT – Cheapest from a big brand
At about ₹7,763, this is the least you should spend on an RO for borewell water. Cheaper no-name ROs exist, but finding membranes and a technician for them a year later is a gamble. The Sure Delight NXT is a straightforward RO + UV with a 6-litre tank, a 1-year or 6,000-litre cartridge life, and the same free service plan as the Aquasaver.
There’s no mineral cartridge or TDS controller, so at very high input TDS the water can taste flat. For moderate borewell water it does the job.
Key specs
- RO + UV
- Storage: 6 L, flow up to 3 L/minute (as listed)
- Cartridge life up to 1 year or 6,000 L
- Warranty: 1 year + free service plan
What we like
- Lowest price from a major brand
- Free first-year service plan
- Simple and proven
What could be better
- No TDS control or mineral cartridge
- Not ideal above 1,500 ppm
Buy it if: you want a dependable RO for moderate borewell water at the lowest price.
7. AO Smith Z9 Pro – Hot and normal water
If you make baby formula or tea several times a day, the Z9 Pro dispenses purified water at room temperature, 45 °C and 80 °C. It’s an under-sink unit with a 10-litre tank, 100% RO with a silver-charged membrane, and a copper and alkaline mineraliser.
It’s the most expensive pick here, and an under-sink install needs a cabinet with space and a power point. AO Smith includes a gooseneck faucet and a pre-filter, which a borewell home should fit anyway.
Key specs
- 100% RO + silver-charged membrane, 8 stages
- Storage: 10 L, under-sink
- Ambient, 45 °C and 80 °C dispensing
- Warranty: 1 year comprehensive, pre-filter included
What we like
- Instant hot water
- Pre-filter in the box
- Large tank
What could be better
- Expensive
- Under-sink install needs cabinet space
Buy it if: you want a premium under-sink purifier and use hot water through the day.
How to choose a purifier for borewell water
Fit a pre-filter on the inlet
Borewell water carries sand and silt that choke the purifier’s first cartridge within months. A spun sediment pre-filter on the inlet line costs ₹500 to ₹1,500 and protects the expensive parts. See our pre-filter picks and fitting guide. If your water leaves orange stains, ask the technician about an iron-removal filter as well.
Don’t strip the water bare
An RO can bring 1,200 ppm water down to 30 ppm, which tastes flat. A TDS controller or mineral cartridge brings it up to a more natural level. Most people prefer drinking water somewhere between 80 and 150 ppm. Treat “alkaline” and “copper” stages as taste features, not medicine.
Count the real running cost
On borewell water, plan for a cartridge set every 9 to 12 months and a membrane every 1 to 2 years. Brand annual maintenance plans usually cost ₹2,500 to ₹5,000 a year, so ask for the price before you buy. A cheaper purifier with expensive yearly service is not cheaper.
Use the reject water
The waste outlet can fill a bucket for mopping, flushing or washing the car. Don’t use very high-TDS reject water on potted plants for long: the salt builds up in the soil.
Service network beats specifications
Before you order, search “[brand] service centre” with your pin code. KENT and Aquaguard reach the most towns. AO Smith and Pureit are strong in cities.
- Test your TDS, and get a lab report if you see stains or smell sulphur
- Match the purifier to the TDS band in the table above
- Fit a sediment pre-filter on the borewell line
- Ask the brand’s maintenance plan price before buying
- Book the free brand installation instead of a local plumber
Questions people ask us
Which water purifier is best for borewell water?
An RO + UV purifier with a TDS controller or mineral cartridge. Our top pick is the KENT Grand. The Pureit Eco Elite 2X is the better choice if you want a 2-year warranty that covers filters.
Is RO necessary for borewell water?
Almost always. Borewell water usually has TDS above 500 ppm, and only RO removes dissolved salts, hardness and heavy metals. UV and UF alone kill germs but leave the salts in.
What TDS is too high for a home RO?
Most home ROs handle up to about 2,000 ppm. Above that, the membrane wears out fast. You’ll need a softener or a commercial-grade system first, and a lab test to know what’s in the water.
How much water does an RO waste on borewell water?
A conventional RO can waste two to three litres for each litre purified when input TDS is high. Water-saving models from Aquaguard, Pureit and AO Smith claim to cut that by 45% to 60%.
How often should I change the RO membrane with borewell water?
Usually every 12 to 24 months, depending on TDS and how much water you use. If the output TDS on your meter starts climbing, the membrane is due.
What is the best water purifier for borewell water under ₹10,000?
The Pureit Wave Plus (about ₹8,399) or the Aquaguard Delight NXT Aquasaver (about ₹9,402). The Aquaguard Sure Delight NXT is cheaper still at about ₹7,763.
Bottom line
For a typical borewell home, buy the KENT Grand and fit a sediment pre-filter on the inlet. If you’re in a city with good Pureit service, the Eco Elite 2X’s 2-year filter warranty makes it cheaper to own. If water is scarce, the Aquaguard Aquasaver wastes the least.
Whichever you choose, keep your TDS meter. A rising reading at the purifier’s tap is the earliest sign that a filter needs changing, often weeks before the app or indicator tells you.
More water guides: Which purifier is best for hard water · Best pre-filters · Best purifiers for municipal water · Best non-electric purifiers · Bathroom filters and softeners · Best geysers for hard water · Best water purifier under ₹5,000.