A drop harvested is a Crop harvested

Water is our most precious natural resource and something that most of us take for granted. We are now increasingly becoming aware of the importance of water to our survival and its limited supply. The harvesting of rainwater simply involves the collection of water from surfaces on which rain falls, and subsequently storing this water for later use. Normally water is collected from the roofs of buildings and stored in rainwater tanks. Rainwater harvesting is a way we can collect rain water into the tank, pond or other types of natural or artificial water reservoirs. Harvesting the rain water is an effective technique to maintain the level of water on the earth as well as reducing the use of clean water in all purposes.

How safe and reliable is the rainwater you are collecting?

Well, rainwater harvesting is a thousands of years old reliable practice being used by people for fulfilling their water needs from Vedic, Harappa, Mesopotamian, Mayan and other civilizations including those living in driest of areas like Thar deserts etc. and is based more upon the concept of common sense rather than the concept of installing any single filter for doing rainwater harvesting. That’s why, The Ridge Rain Harvesting System comprises of a number of unique and cost effective components which applied in using a unique methodology of implementing rainwater harvesting. Each site is extensively checked, surveyed, and based upon client expectations, technical possibilities, site constraints, operational cum financial considerations and use of harvested water each project is custom designed. With more than 100 projects across the country wherein each and every project has recovered their cost, we would love to do water harvesting in your property or with the community.

When collecting rainwater as a partial or total source for a water supply it is essential the design of the system meets the need for potable (safe drinking) water. Water collected from a roof and stored and distributed from a water tank, can contain a nasty range of pollutants that can contaminate your water, for example bacteria from bird droppings, insects, rotting debris, air-borne dusts (containing heavy metals). So filtering the rainwater is the science and doing it rightly is very important, once done RAINWATER IS ONE OF THE PUREST and BEST SOURCES OF WATER FOR PEOPLE TO DRINK OR USE.


  1. Ensure the roof surface is suitable for collecting potable water
  2. Ensure spouting is installed according to Building Code, allowing for adequate fall and installing suitable expansion outlets or gutter downpipe filter to make certain water does not pond in the gutter and clogs due to leaves, twigs at the inlet of the downpipe.
  3. Install suitable design debris diverter with self cleaning to direct leaf litter and larger debris items out of the flow of the water.
  4. Fit an appropriate sized pre-tank filter of suitable technology such as vortex, mesh etc. or a first flush diverter as per site suitability, to divert the first most contaminated rain water from entering the tank
  5. The water is thereafter required to be stored in a suitable tank (PVC/RCC/Modular/mud tanks) and attach water calmed inlet, tank out take kits to suck water from the just below the water level inside the tank by discarding out the bottom silted, anaerobic zone – dirty ‘zone’, tank silt filter in tanks to ensure the tank water is properly kept and filtered.
  6. Install a rainwater filtration system for recycling the rainwater and a suitable purification system for making the water potable. The system can be connected the common storage tanks for sending the water to common plumbing for reuse.
  7. To assist in ensuring an automatic operation, install water tank level indicators, automatic level controllers with sensors for automatic tank operations.  a tank vacuum kit to suck water from the bottom of the tank when the tank is full to overflowing.

Choosing the most suitable components for a rain harvesting system will be based upon whether the tank is set up as a wet or dry system.


A “Wet” System is a system where the pipes are fitted in such a way that when the rain stops the pipes to the tank do not drain out. They hold water. With this type of system, the pipes must be fitted with screens at each end to ensure that insects cannot enter and breed in the system.   A “wet” system needs to be fitted with a First Flush Water Diverter at the tank, with a capacity equal to that of the pipes plus whatever amount is to be diverted from the roof. To lessen the amount of water to be diverted at the tank, a Downpipe First Flush Water Diverter can be fitted on the building to take the required first flush from the roof.


A “Dry” System is a system where the pipes drain out and dry out after rain. A system where pipes do not hold water after the rain stops. Large buildings normally make it near impossible to have “dry” systems. For slightly sloping sites an In-Ground First Flush Water Diverter will turn a “wet” system into a “dry” system

Our Projects

The Ridge solutions has provided its servises and solutions to various tourist destinations and industrial units with state of the art harvesting setups. 

This Post Has 2 Comments

  1. Suirya Prakasam


    am Suriya Prakasam From Tamil Nadu. I start my project Rain Water Harvesting System. i need disc Filter PVC. You can Supply your Filteration Systems. Please send your rain water harvesting project products price list. 8344339000/9095018868

  2. Gaurav Prakash

    Dear Mr. Suriya,
    Apologies I missed your message. However yes I can support you for rainwater harvesting . Please advice how.

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