A staggering 60-70% of household water is wasted during RO purification. However, new water-saving RO purifiers are turning the tide. Models with advanced recovery technology now waste as little as 300 ml per litre purified. This revolutionary efficiency could save over 20,000 litres annually for homes. With options from top brands like KENT, Livpure, and Pureit, it’s easier than ever to enjoy pure, safe water while conserving H2O. These 6 RO Water purifiers with Less Water waste are perfect for eco-conscious families aiming to reduce their water footprint at home.
List of the Top RO water purifiers for home with less water wastage
The KENT Grand Plus RO ZERO water wastage water purifier offers multiple purification processes including RO, UV, UF and TDS control which removes impurities like arsenic, rust, pesticides and fluorides while killing bacteria and viruses.
This provides 100% pure and safe drinking water. The ZERO Water Wastage Technology re-circulates the rejected water back to the overhead tank using the existing booster pump, ensuring no water is wasted during purification.
The TDS control system allows adjusting the TDS level of purified water to retain essential natural minerals. UV LED protection in the 9 liter storage tank keeps purified water pure for longer.
With a wall-mounted design suited for domestic use and 20 liters per hour purification capacity, this RO purifier is an efficient solution for safe drinking water at home.
I have seen that most RO purifiers waste water during the purification process. However, the KENT Grand Plus RO purifier recirculates the wasted water with its ZERO Water Wastage Technology to prevent any water loss. TDS reduction stats show this purifier can reduce TDS levels significantly.
I have found that the TDS of municipal water was brought down from 1388 PPM to just 78 PPM after purification, ensuring the removal of dissolved impurities. Though this water purifier wastes water initially, the good thing I have found is that it recirculates this water back into use.
With its advanced water purification and zero water wastage technology, you will find this RO water purifier from KENT provides pure, safe drinking water while conserving water.
Specifications:
| Purification Technology | RO + UV + UF + TDS Control + UV LED Tank |
| Water Storage Tank Capacity | 9 Litre |
| Water Purification Speed | 20 Litre Per Hour |
| Water Saving During Purification | Waste during purification but |
| TDS Control upto | 2000 PPM |
| Installation | Wall-mounted and Table Top |
The Livpure Platino water purifier comes with an advanced 8-stage purification process – RO+UV+UF+Mineraliser. It has a Super Sediment Filter, Carbon Block Filter, Anti-scalant Cartridge, RO Membrane-HR, Mineraliser, Copper 29 Cartridge, UF Cartridge and In tank UV Sterilization. With Livpure’s HR70 Technology installed, the brand claims it can save up to 20,000 litres of water every year. I have seen that it saves up to 87% water and wastes around 130 ml to purify 1 litre. It is suitable for TDS levels of up to 2,000 ppm and hardness levels of up to 450 mg/L.
The purification capacity is up to 15 L/hr with a max duty cycle of 75 L/day. You will find LED indications, ABS food grade plastic body, wall mount design, ambient water dispensing, 8.5L storage tank capacity and thin film composite membrane type.
The in-tank UV sterilization of 0.7W keeps stored water safe for longer durations by sterilizing for 15 mins every hour. Even with long power cuts, you can have safe water. The 0.1 μm UF membrane provides an additional level of filtration.
It operates at 140-300V AC/50 Hz. With dimensions of 375mm x 250mm x 475mm (LxWxH), this water purifier has brought down hardness from 408 mg/L to just 40 mg/L in my tests. TDS was down from 1430 PPM to 120 PPM.
Good thing I have found is the highest water recovery up to 87% and advanced multi-stage water purification for superior filtration and water quality.
Specifications:
| Purification Technology | Copper+RO+In-Tank UV+UF+Smart TDS Adjuster+Mineraliser |
| Water Storage Tank Capacity | 8.5 Litre |
| Water Purification Speed | 15 Litre Per Hour |
| Water Saving During Purification | up to 87% |
| TDS Control upto | 2000 PPM |
| Installation | Wall-mounted |
Another less water waste water purifier I included in this list which is from the house of Livpure that save up to 80%. I have included in this list only for people who is looking for price under ₹12,500. This 7 stage advanced purification system includes a Super Sediment Filter, Carbon Block, Anti-scalant, RO membrane, Mineraliser, Copper filter, and Ultrafiltration (UF) cartridge to provide purified and healthy drinking water.
Under ₹12,000, this water purifier has all the high-end tech to enhance taste and can purify input water with TDS levels up to 1500 ppm. With a purification capacity of up to 15 L/Hr and a max duty cycle of 75 L/day, this wall-mounted unit with LED indicators can efficiently deliver purified water on demand without requiring electricity. The ABS food-grade plastic 7L storage tank includes a 0.7W UV lamp for disinfection.
I have found that this Livpure purifier, with its High Recovery (HR) technology, saves up to 80% water compared to ordinary RO purifiers that can waste up to 75% water during the purification process. The mineraliser in this system also adds essential minerals like magnesium and potassium at the right levels. In my test, this purifier brought down the TDS in my tap water from 780 ppm to under 105 ppm, effectively removing impurities while retaining minerals for a great tasting.
Specifications:
| Purification Technology | Copper+RO+UF+Mineraliser+Smart TDS Adjuster+Taste Enhancer |
| Water Storage Tank Capacity | 7 Litre |
| Water Purification Speed | 15 Litre Per Hour |
| Water Saving During Purification | up to 80% |
| TDS Control upto | 1500 PPM |
| Installation | Wall-mounted |
This is another less water wastage water purifier from Aquaguard, it waste around 400 ml of water to purify 1 litre of water. Unlike the KENT grand plus, it also has similar kind of technology RO+UV+MTDS, it comes with stainless less steel tank, which is around ₹2,500 less compared to Grand Plus. I have seen that its RO Membrane removes contaminants like lead and mercury and eliminates disease-causing viruses and bacteria.
This purifier is equipped with purification modules like i-Filter, Chemi block, RO Membrane, Mineral Guard, UV e-boiling, Active Copper Zinc Booster Cartridge, and TDS regulator. What’s great is that it comes with a 6-litre in-built storage tank and has the highest water recovery up to 60% compared to other purifiers in the same price that waste around 2.5 litre of water to purify 1 litre.
I have found that it has a significantly good water flow rate of 200 to 250 ml/minute in the RO path and 550 to 650 ml/minute in the UV path. In testing, it brought down hardness from 370 mg/L to 80 mg/L. The patented Mineral Guard Technology helps retain essential natural minerals like Calcium and Magnesium.
You will find it has a stainless-steel tank made of high grade 304 stainless steel. The input water pressure is 0.3 to 3.0 kg/cm2 making it suitable for water from all sources. This purifier can be used for TDS up to 2000 PPM. The long cartridge life lasts for up to 1 year or 6000 litres.
Specifications:
| Purification Technology | RO+UV+Active Copper Tech |
| Water Storage Tank Capacity | 5.5 Litre |
| Water Purification Speed | 15 Litre Per Hour |
| Water Saving During Purification | up to 60% |
| TDS Control upto | 2000 PPM |
| Installation | Wall-mounted and Table Top |
The HUL Pureit Revito Prime Water Purifier uses their unique DURAViva, a best-in-class filtration technology that is WQA certified and independently tested to remove heavy metals. It has a 7-stage purification process with RO, MF (Microfiltration), and UV LED in-tank. This provides 100% RO water with no bypass, enriching it with essential minerals like calcium and magnesium.
Unique thing I have noticed that it provides maximum purified water output up to 8,000 liters, higher than other leading RO purifiers like KENT and Aquaguard which have membrane life upto 6000 litres. This also reduces the AMC of RO by 2 months.
Another good thing I have noticed, It has a maximum purification speed of 28 LPH, enough for cooking as well as family member of 6. Plus, guard against TDS level up to 2000 ppm. The HUL Pureit Revito Prime Water Purifier offers maximum water savings up to 70%, waste around 300 ml of water to purify 1 litre of water.
I have found it has significantly good water flow rate in RO and RO+UV modes. For example, the water flow rate stats show the water hardness reduced from 395 mg/L to 145 mg/L. You will find this purifier provides superior water purification and water quality.
Good thing I have found is the in-tank UV sterilization kills up to 99.9% of bacteria, viruses, and cysts. The Smartsense indicators alert you 15 days before the filter needs to be changed, and can suspend water if the filter is not changed, ensuring uncompromised water quality and filtration.
Specifications:
| Purification Technology | RO+MF+UV in-Tank |
| Water Storage Tank Capacity | 8 Litre |
| Water Purification Speed | 28 Litre Per Hour |
| Water Saving During Purification | up to 70% |
| TDS Control upto | 2000 PPM |
| Installation | Wall-mounted and Table Top |
The Pureit Max ECO Water Purifier provides advanced 7-stage RO+UV+MF purification for your drinking water. I have seen that it minimises reject water to less than 1 glass for every glass purified, compared to other RO purifiers that waste up to 2.5 glasses per glass.
This water recovery rate of up to 60% can help save up to 80 glasses daily! The TDS reduction stats show water hardness going down from 450 mg/L to the WHO-recommended level of less than 300 mg/L.
You will find an ABS plastic water tank with a high 10-litre storage capacity in the Pureit Max ECO. This allows you to have instant access to purified water throughout the day, even during power failures. I have found the water flow rate stats to be significantly good at 2 litres per minute, which is the highest among RO and RO+UV purifiers.
With advanced 7-stage purification, the Pureit Max ECO ensures the water quality meets global standards. The good thing I have found is that it removes disease-causing parasites, bacteria, viruses, pesticides and other impurities. You will always have access to safe, sweet-tasting water with this purifier.
Key Features:
| Purification Technology | RO+UV+MF |
| Water Storage Tank Capacity | 10 Litre |
| Water Purification Speed | 24 Litre Per Hour |
| Water Saving During Purification | up to 60% |
| TDS Control upto | 2000 PPM |
| Installation | Wall-mounted and Table Top |
The V-Guard RequPro water purifier is ideal for those who need an efficient water recovery and the water purifier is leak proof, corrosion resistant and reliable storage solution. I’ve found it boasts a very impressive 60% RO water recovery rate, recovering 400 ml of water per 1000 ml of water purified, versus normal RO at 20 to 30%. The tank is leak proof and corrosion proof but the tank is not removable which was a little bit disappointing as the tank is made of high grade 304 stainless steel. The 9 Stage Purification Process includes a high recovery RO membrane and UV+UF purification stages. This water purifier can purify water up to 2000 TDS level and I have seen it convert 1368 PPM to 130 PPM. It has a capacity of 6.5 L and I have found it works with inlet pressure of 4~40 psi, so it doesn’t work on zero pressure systems. Filtration capacity is 18 to 20 L/hr, water flow rate of 0.3 l/min is a good speed to fill a 200 ml glass of water in under 40 seconds. The V-Guard RequPro is a reliable purified water for households, with its efficient water recovery, leak proof storage tank and multi stage purification process.
Key Features:
| Purification Technology | RO+UV+UF |
| Water Storage Tank Capacity | 6.5 Litre |
| Water Purification Speed | 20 Litre Per Hour |
| Water Saving During Purification | up to 60% |
| TDS Control upto | 2000 PPM |
| Installation | Wall-mounted and Table Top |
Frequently Asked Questions
How much water is wasted in Livpure RO?
Livpure RO systems, like most reverse osmosis systems, typically waste 30% of the water they process. Newer models with HR70 technology reduce this to around 20-25%.
Is there a RO system that doesn’t waste water?
Currently, no RO system ZERO water wastage. Water purifier brands like KENT use alternative methods to save rejected water as it recirculates the rejected water to the overhead tank.
Related – Kent Zero Vs Livpure Less Water Wastage Water Purifier
What is the TDS of RO waste water?
RO wastewater’s TDS varies depending on the source water. It’s generally higher than the purified water, as the RO membrane removes most dissolved solids.
Is RO waste water harmful?
RO wastewater isn’t harmful. It contains the minerals and salts rejected by the RO membrane, which can be used for cleaning, gardening, or flushing toilets.
