Green Initiatives

AIAOWA is taking various initiatives in various areas to benefit the society and environment in a long run.  Few of the current initiatives are

  1. Rain Water Harvesting
  2. Grey Water Harvesting
  3. Replacing 24 x 7 lights with LED

Water Initiatives

We all are aware of the water situation in Bangalore. Water is and will remain the single most important area of concern for everyone in Bangalore.

AIAOWA is trying to look at various alternatives to resolve the crisis. This includes steps like

1. Trying to reduce consumption

2. Efforts in Stabilizing Supply

3. Trying to be self-sufficient & re-use

In each of the above mentioned areas we have done significant work and we continue to do so.


1. Trying to reduce consumption

- Water flow reducing aerators is installed in majority of the apartments (up to 6th floor). We intend to implement this across all flats and make it mandatory.

- You will hear more announcements from our water committee about the same.

- We did an analysis about feasibility of modern water meters but we have put that plan on hold for various reasons.


2. Efforts in Stabilizing Supply

- Multiple vendors and multiple supply points and methods (Pipeline + Tankers) is in place.

- The water committee constantly monitors the supply side.

- Investments are made by AIAOWA with these vendors, so that the vendors can supply adequate amount of water.


  - Bore-wells of the vendors are failing. 3 out of 4 bore-wells of one vendor failed. He is looking for new lands to put more bore wells.

  - Water levels are going down and more bore-wells will fail in near future.

  - Price of water is high and the % growth per year is difficult for anyone to sustain.

  - Water is the largest single expenditure for us and it is growing fast.  



3. Trying to be self-sufficient & re-use

- AIAOWA has 2 bore-wells each of them 800+ and 1000+ feet. 

- We reuse our STP water for commode and gardening and the rest is disposed via vendors.


  - One of the bore-well has already failed (one behind N Block). The other one (near service gate) provides limited water.



So, the above points are enough to indicate the serious situation we all are in. We are a large society and together we can solve this.

AIAOWA looked into various other options ( few options shared by residents in forums and meetings ) and we are happy to inform you that after the due-diligence we have narrowed down our focus on

1. Rain Water Harvesting

2. Grey Water Harvesting


AIAOWA has been in various discussions with Mr. Ayyappa Masagi also known as Water Gandhi.  More details . 

Mr. Masagi and his team has joined forces with AIAOWA to solve the water situation.




Water Sustainability


Water is an important resource without which we cannot basically live. And in today’s times and maybe tomorrow, water scarcity is going to be our biggest challenge as a society in the Indian context and is a looming threat to urban India. Development and increase in population without commensurate increase in sources of water will put pressure on everybody in India and especially Bangalore.


It is imperative we inculcate measures which encourage conservation and sustainability so as to leave a better place to our future generations and in this series of emails, we will try and understand the issues around water and look at ways and methods to become sustainable. 

Happy reading!

        HOW TO BE SUSTAINABLE          


  • give back to mother nature what we take from her


  • do not waste water


  • Reduce consumption of water


  • reuse water wherever possible


  • Inculcate conservation
  Bangalore may have to be evacuated by 2013 (9 years from now) due to water scarcity:         Rain water harvesting    
            Recharge ground water    
  46% of water is lost across Bangalore:              
            Bring up the water table    
  Acute water scarcity by the year 2040 looms over India:              

Purest form of Water is Rainwater!!

Can be collected from OUR roof tops!!!!

  22 of India’s 32 big cities face water crisis:   Govt recommended per capita water consumption - 135 liters / day    
REDUCE Grey water harvesting  
        Recharge ground water      
  Use Aerators to reduce water flow / Use lower flow in showers        

Avg rainfall in Bangalore = 85 cm

That’s 850 litres of water per sq meter from the Gods for us!!!!

RO waste water reuse  
  Plug open taps             
  Don’t throw stored water            

     Are we ensuring sustainability?      

Coming Next – Replenishment by Rain water harvesting  
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Grey Water Harvesting 


All water consumed by human society is in some way or the other recycled naturally. Rain water comes from evaporation and condensation while ground water is nothing but run off of the rains into the ground by percolation. Something which is done naturally by Mother Nature can also be utilized by us in order to ensure another source of water supply and reduce the wastage of water.

In this regard, recycling Grey water in order to harvest the Grey water generated by our homes is an important way to minimize dependence on external factors affecting our water supplies.

Happy reading!


What is Grey Water?


Grey Water is waste water generated by homes after domestic use and excludes sewage and toilet water.

It is generated from Wash Basins, Washing machines, showers and baths as well as dish washing.

This typically makes up 50-80% of a households waste water.

What is Black Water?

Black water is generated from toilets and includes sewage as well as human waste. It contains pathogens which decompose quickly. Black water is separate from grey water at Ajmera Infinity.



  • Nearly as clean as water from many sources as it has lower level of contaminants which can be separated
  • Chief grey components are food waste, body dirt, and soap as well as minor components of oil/grease
  • Much easier to treat and recycle when compared with black water.
  • Multiple filtration systems can be applied to purify the grey water before reuse/recycling.
  • After filtration, samples can be tested for contaminants as well as bacteria for reassurance.
How to harvest    Grey Water


  1. Separate Grease/Oil through Float Separation system.
  2. Filter Solids (Food debris etc) through Coarse Mesh filter and a secondary screen filter
  3. Tertiary filter using sand filtration/Gravel filtration or membrane filters
  4. Take water samples and send them off for checks for bacterial contamination
  5. If the bacteria count is too high, either use bleach or UV or ozone (RO) as a purifying step
  6. Let the final purified water lawns or gardens or go into recharge pits with another layer of natural ground filtration. This step can kill bacteria in water as many bacteria cannot survive in the ground.

The water table can be brought up using the above techniques while some grey water can be used for gardening purposes or it can even by treated further for use in flushes.

Coming Next – Replenishment by Rain water harvesting  
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