Water meters reduce water wastage in my flat

One Bengaluru resident talks about his experiences in installing individual water meters and other water saving measures.

At our apartment complex, ‘Mana Sarovar’ in Doddanekkundi, we have installed water meters for all individual 32 flats and provided monthly maintenance as per individual water usage.  All the meters have been installed on the terrace.


Earlier we used to buy 3-4 tankers per day with limited supply of water. Water was available for 1.5 hours in the morning, one hour in the afternoon and 1.5 hours at night for almost a year.  But now we have 24 hour water supply but buy only 2 tankers per day.

I did some analysis of water usage in my apartment complex. One can see similar number of occupants of different flats using different amounts of water.

Analysis & Report by Kannan Venkitachalam.

We found out that only 20-30% flats consumed 40-50% of total water in the apartment complex.

The problem we faced was the way the plumbing was done. In our apartment, each flat has  two inlet pipelines which creates a problem in creating a single meter but we have connected both lines to single meter outlet.

I strongly recommend you to install water meter in your apartment complex to overcome the summer water problem and save water and indirectly save money.

“Without measure, there is no control”.  Let everyone “Use & Pay” for the water.


Apart from this I have also implemented simple water saving techniques in my flat, which has reduced my water consumption when compared to other flats in my apartment complex.

RO Water for washing machine

I am using Aqua Guard Reverse Osmosis System for the last 3 years. I have placed the system such way that my washing machine is next to the adjacent wall. I drilled a hole and put the drain pipe from RO to the washing machine (it is not fully automatic, only semi & twin tub type machine). Once the machine wash tub fills I will take clothes for wash. If extra RO runs I will store it in a bucket near the washing Machine. You know this rejected water from RO is much cleaner than direct tap water, only thing it is a little hard. So I am not wasting any water from my RO.

Kitchen Sink

I have replaced the kitchen sink tap to a shower, which will consume less for cleaning utensils. Since we need more area coverage or spread for utensils cleaning, not volume, so a shower dispensing less water works very well.

Kitchen Sink Shower

This can save a lot of water, this cost me roughly Rs.500/- only. No plumber required for this, you can fit yourself if you have a pipe wrench & Teflon tape. I did it myself. It is not a standard readymade one available in market; need to buy separately all plumbing fittings and the shower.

Toilet flush

There is some adjustment in the toilet flush tank also which controls the volume of water filling. The lever connects the ball valve has got a screw which sets the valve closing pressure. So if you tighten it little more with a small screw driver, you can make the flush tank to fill only the half of it.


Under the washbasin, there is a control valve, I have kept that valve half closed so the water flow from the tap reduces. That is more than sufficient to clean your hand and face.

Cleaning water

The water used for cleaning vegetables, I store it and use it for watering the plants.

I keep the biggest bowl or utensils at the base or bottom of kitchen sink and start collecting the other small utensils washed water in that. This can be used for initial cleaning of other unclean utensils. If you look at any tea shop, they will have a bowl of water and dip the used tea cup first into it and then wash it on fresh water.


For bath I use a 16 litre bucket. That is more than sufficient for an adult to bathe.


Some of the articles that helped me plan for our apartment:



  1. Editors says:

    More details of Kannan’s journey here and info on water meter installation here.

  2. prakash says:

    Wanted to know how much it costed you to install water meters. We are 20 flat apartment complex and we need to install them as we have sever water shortage here in Hyderabad.
    so your inputs will help us to take correct decision.

  3. vinayak gondkar says:

    Hello Kannan, please provide me with the address of your apartment and your contact number. Reason being, we at our apartment are exploring installation of water meters and are currently assessing the situation. I am interested to know more about the installation of water meters, which water meters you installed etc. Thanks, Vinayak (Ph 9611238238)

  4. S Srinivasan says:

    1.Fitting Water Meters are not possible in high rise apartment complexes since water connections to Bathrooms and toilets come through different pipe layouts in different ducts.
    2. RO type of water purifiers consume lot of water. It is best to avoid such types of purifiers and go for simple types.
    3.Simple water showers made of plastic costing just Rs. 20/- and a pipe adaptor to the existing Kitchen tap does a very good job. The shower attachment is available from M/s.Olympic Plastics . You can contact Mr.Dharmic Patel at olympicplasticindustries@gmail.com
    I will send photos of the attachment to Citizen Matters .
    4. Reducing the water flow in each tap by resetting the inlet valves is being followed in our complex.
    Whatever said and done, it is the responsibility for each citizen to follow simple rules of water conservation and train the children also on its importance.

  5. Zeteon Int says:

    Agree with Mr. S Srinivasan, practicality and costs of water meters for individual apartments could be prohibitive. Resetting inlet valves will cause an imbalance in hydrostatic pressure often leading to unwanted water hammer problems resulting in damaged taps and pipework (that is a even bigger problem).

    Simple solution could be to use less water naturally. Here are some ideas for water saving: http://www.zeteoninternational.com . Please contact the local office and ask for a demo.


    I stay in Hyderabad, we have 32 flats in our building, intersted to know from you details on installation of flow meters to individual flats and also name of suppliers for flow meters.Can you also throw some light on treatment and reuse of grey water?

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