Water metering is an intelligent way to understand water usage in a household or an apartment society. Given the social, economic and environmental impact of water scarcity, it is best to start conserving the things that people usually take for granted, water being on top of that list. A research by Livpure suggests that about 50% of freshwater is wasted in the country, owing to inefficient water management practices and leakages. Checking the wastage of water and our own pattern of water usage, is the easiest way to conserve water. Here, we look at what you gain when you go in for water metering, types of water metering, etc.
What is a water meter?
A water meter is a device that is used to track water usage. It helps, not just in monitoring consumption but also to save money incurred on electricity used to pump the water and also energy consumption for functioning of sewage treatment plants.
See also: Water conservation: Ways in which citizens and housing societies can save water
Benefits of using water meters
Incentive to conserve water: Using a water meter acts as an incentive for you to conserve water. It is the first step towards discipline and monitoring your water use pattern.
Volumetric pricing: Why pay more for water use when you aren’t using it? If you install water meters, you will pay only as much as you use.
Detect water wastage: It is important to monitor water wastage through leakages, dripping taps or any other reason. Some of you may be using water in moderation but end up paying (or wasting) more owing to structural defects in the source of water at home or at the distribution level. Water meters will help you analyse and take action against such problems.
Estimating subsidies: Authorities often subsidise water charges for those who cannot afford to pay for it. However, it is important to check water wastage in such scenarios, especially because the state authorities often have to bear a huge cut in their revenue when they offer subsidies. Water metering is an efficient way to understand usage and set targets when rolling out subsidies.
Similarly, individual home owners and apartment societies can also estimate water consumption in their building and flats.
Regular supply: If water consumption is checked and reasons related to wastage identified and corrected, housing societies will be better equipped to ensure that the water supply is adequate and equitably distributed to all households. Water supply in unoccupied flats can be temporarily cut, as well.
Lower energy consumption: Directly or indirectly, you are misusing energy when you waste water. Water metering ensures that you minimise energy consumption, when you use only as much water as you need.
See also: Water conservation tips to follow at home
Water meters for households
Water meters up to 50 mm are called ‘domestic’ water meters and are used for households. On the contrary, ‘bulk’ water meters are for commercial or industrial use, as per Indian standards.
See also: Water harvesting: The best way to end water shortages
Quality of household water meters in 2020
Every year, the Fluid Control Research Institute, India (FCRI) publishes a Model Approval Program which has a list of qualified water meters. The latest list is as follows:
| Meter description | Size |
| Kranti Ultra-G
Multijet Class B |
15 mm |
| Kranti KBM-G+
Multijet Class B |
15 mm |
| Kranti Ultra-G Copper can
Multijet Class B |
15 mm |
| Itron
Multimag Cyble TM II. (Q3: 1.6 m3 /h, R50, PN16, ∆p63) |
15 mm |
| Zenner – ZR100,
Multijet Inferential, Class B |
15 mm |
| Kranti
Multijet Inferential, Class B |
15 mm |
| Watertech
Multijet Inferential, Class B |
15 mm |
| Dasmesh Multijet
Magnetic Inferential, Class B, Copper Can |
15 mm |
| Dasmesh
Multijet Magnetic Inferential, Class B, Plastic Can |
15 mm |
| Konarak
Multijet, Class B |
15 mm |
| Itron
Multimag Cyble TMII, Q3:1.6m3/hr, R50, T30,∆P 63 |
15 mm |
| Itron
Nevos – Volumetric Rotary Piston Type (Brass body) |
15 mm |
| GLOBALm
GB15, Multijet, Class B |
15 mm |
| Itron
Multimag Cyble TMII, Q3:1.6m3/hr, R100, T30,∆P 63 |
15 mm |
| Baylan
TK-23 with Plastic top & Rotating dial |
15 mm |
| Baylan
TK-23 |
15 mm |
| Itron
Multimag Cyble TM II Q3:2.5m3/hr, R50, PN16, ∆P 63, T30 |
20 mm |
| Itron
Multimag Cyble TM II Q3:2.5m3/hr, R100, PN16, ∆P 63, T30 |
20 mm |
| Maddalena –
DSSD Q3:4 m3/hr, R160, PN16, ∆P 63, T50 |
20 mm |
| Kamstrup
ultrasonic water meters Model flow IQ 2101 Q3:4 m3/hr, R250, PN16, ∆P 63, T50 |
20 mm |
| Watertech
Multijet Inferential, Class B |
20 mm |
| Konarak
Multijet, Class B |
20 mm |
| Arad
Dialog3G-IN Multijet, Class B |
20 mm |
| Arad
Dialog3G-IN Multijet, Class B |
25 mm |
| Baylan
TK-3C |
25 mm |
| Itron
Multimag Cyble Multijet, Class B |
25 mm |
| Konarak
Multijet, Class B |
25 mm |
| Maddalena –
DS TRP Q3:16 m3/hr, R100, PN16, ∆P 63, T50 |
40 mm |
| Kamstrup
Ultrasonic type flowIQ 3100, Q3:16m3/h, R160, T50 |
40 mm |
| Itron
Multimag Cyble Multijet, Class B |
40 mm |
| Baylan
TK-5C |
40 mm |
| Kamstrup
Ultrasonic type flowIQ 3100, Q3:25m3/h, R160, T50 |
50 mm |
See also: All about BMC water bill
Some frequently asked questions on water meters
What are the different types of water meters?
Usually, residential premises and small commercial buildings use what is called, Positive Displacement or PD meters. There are other types – velocity water meters that measure the flow velocity through an internal capacity. Compound water meters are usually used for high flow rates and electromagnetic meters use the water’s electromagnetic property, to determine the flow velocity.
See also: A guide to buying water tank for house
What is the lifespan of a water meter?
Depending on the design, field connection and other determinants, on an average it has been seen that water meters usually function well over five to seven years after it is installed.
See also: All about BWSSB
What is the cost of water meters?
The cost of water meters can vary from Rs 500 to Rs 8,000 per piece, depending on the quality and other factors. The cost of installation is separate.
Which class of water meter is used in India?
Usually there are four classes of water meters, Class A, B, C and D. In the table given above, you can see that Class A and B water meters are widely used in India.
How does FCRI verify the quality of water meters?
A usual test takes around two months. Even during the initial verification, FCRI checks for accuracy at various flow rates, pressure, tightness, as well as loss tests, etc. Durability is also checked through the process.
Are there any disadvantages of using water meters?
While the advantages outweigh the disadvantages, there are still some points you must consider. For example, water meters can surely detect leakages but the detection is delayed. Also, if one goes in for equitable distribution of water, some households may suffer more than others. In some other cases, a housing society may be said to be wasting water, when it may actually be caused by a few households only. Water meters are also not as important for someone who does not utilise a lot of water or has an unoccupied property.
What is Automated Meter Reading?
Automated Meter Reading or AMR is uncommon in India. Elsewhere, these are electronic outputs that can be passed on to far away locations through wired or wireless technologies.
Is flow of air registered in water meters?
Yes, the flow of air will be registered in water meters.
In a housing or apartment society, who reads and maintains the water meters?
In housing/apartment societies, the public provider, for example, the Delhi Jal Board in Delhi, reads and maintains these water meters. In the case of an apartment, the owner maintains the meter. You can also install a meter privately, known as sub-metering to track the usage of water.
What are smart water meters?
Smart water meters are much more efficient than regular ones. The power consumption is lower, battery preservation is efficient, water billing is dynamic and in short, conservation or consumption inefficiencies are better identified.
Smart cities’ impact on smart water meters
London-based research company Technavio estimates that the smart water meter market may grow by USD 3.94 billion between 2020 and 2024, at a CAGR of 11%. While the geography was restricted to APAC, Europe, MEA, North America and South America, the report also notes, “The development of smart cities will create new growth opportunities for smart water meter vendors. For instance, under the Smart Cities Mission of the Government of India, smart water meters are proposed to be installed in the households of smart cities. Such developments undertaken by governments of various countries, will boost the demand for smart water meters during the forthcoming years.”
See also: Bengaluru’s ‘Rain Man’: Why Rainwater Harvesting is the future of water conservation
FAQs
Is it worth getting a water meter?
Unless you have an unoccupied property, water meters are definitely worth the buy. It helps you keep a check on your water usage while also saving you some money.
What are some of the main reasons for water wastage?
In general, people tend to waste a lot of water during brushing, bathing, washing, etc. Leakages also add to the problem. The National Commission for Irrigated Water Resource Development of India says that the water crisis in India is not due to lack of it but due to inefficient conservation and management problems.
Which are the Indian cities undergoing a water crisis?
About 100 million people in New Delhi, Bengaluru, Chennai and Hyderabad may be affected due to groundwater depletion by 2020, forecasts a report by the NITI Aayog.
