Types of Rainwater Harvesting Systems (RWH)

Types of Rainwater Harvesting Systems (RWH)

Do you have any idea of rainwater harvesting? Do you want to understand the significance of harnessing rainwater? While engaging with plenty of projects on modular rainwater harvesting systems, we can help you understand the rainwater harvesting concept. At Retas, we are committed to offering complete support for installing rainwater harvesting systems and conserving rainwater in a properly organised manner.

It’s quite impressive that our government is aggressively making efforts for rainwater conservation and harvesting. Well, water is a state subject and the Central Government can support it financially and technically. One of the major initiatives was launched in 2021 - Jal Shakti Abhiyan with the theme “Catch The Rain.” So, we can also make a difference by adopting the practices of harnessing rainwater and making our contribution.

What is Rainwater Harvesting (RWH)?

Rainwater harvesting is a process of collecting and storing rainwater. Usually, nobody thinks to save rainwater which goes runoff and creates unavoidable problems. If we don’t save rainwater, we could face flooding, unnecessary water clogging, soil erosion, water scarcity, and more. We help people in storing rainwater using modular technology. By installing modular rainwater harvesting systems, we offer a systematic process to our clients for storing and reusing rainwater smoothly.

Types of Rainwater Harvesting Systems

There are different types of rainwater harvesting systems to harness rainwater. Every system comes with its own advantages and disadvantages. Let’s discuss typically eight systems in this writeup:

  • Waterbutt

One of the simplest rainwater harvesting systems is a waterbutt or a small storage tank. After collecting the rainwater from different sources, the natural rainwater is filtered and stored in a waterbutt

Usually, the capacity of this tank lies between 50L and 1000L and is suitable for stables, farms, etc. You can use this type of system for a variety of purposes such as gardening, car washing and more.

  • Indirect gravity

In an indirect gravity rainwater harvesting system, harvested water is pumped to the header tank and fed to the outlets using gravity. To make the pump work, the header tank has to be filled.

  • Direct pumped – Submersible

The submersible pump is one of the most popular rainwater harvesting systems and is usually placed inside the underground tank. It is easy to install and use for smaller-size projects. You can directly the water for washing machines and toilet cisterns.

For commercial projects, we suggest you go for dual pump arrangements. Depending on the end-use and size of the property, the size of the tank ranges from 1000 L to 22,000 L.

  • Direct pumped – Suction

When it comes to installing the rainwater harvesting system through suction, we place the pump in the control unit. Due to the placement of the pump (outside the tank), it gets easy to clean the filter.

  • Indirect pumped

In an indirect pumped rainwater harvesting system, the pressurized water is provided using a booster pump. This pump can meet the pressure and flow requirements of the building.

The system is similar to indirect gravity but there is one difference - you can place the internal tank in the building at any level. 

  • Gravity only

While the working of this system depends on gravity, it is hardly used in buildings or other properties. You need to place the tank at a higher location when compared to the outlets but at a lower level when compared to gutters.

  • Retention ponds

Retention ponds are used to collect surface runoff water, which can used for livestock watering, irrigation, groundwater recharge, etc. We can improve the quality of water through decomposition, sedimentation, soil filtration, and solar disinfection.

  • In-ground storage

In-ground or underground tanks are best for the areas where rain occurs in one season. We connect an electric pump to these tanks to feed the water to the outlets. These tanks are insulated with a lower evaporation rate.

There are 8 types of rainwater harvesting systems that can be installed according to the requirements of properties. At Retas, we design and install advanced modular rainwater harvesting systems, customised according to the client’s specific requirements. If you need further information, you can contact us and share your concerns with us.

Testimonials

Our customer reviews are the reflection of our efforts, commitment and dedication.

We have used RAINMAXX® Modular Tanks for Rainwater Harvesting. It has multiple advantages over the conventional RCC tanks. RAINMAXX® tanks are very efficient and has significant impact on the ground water recharge.

  • Client : SIEMENS
  • PMC : CBRE, Mr. Ansari
  • Location : Noida

The modular tanks by RETAS works perfectly for storm water applications and requires negligible maintenance. It saves cost and time. We have used these tanks in our various projects such as PARLIAMENT HOUSE ANNEXE, Western Court and PGI Hospital, Chandigarh.

  • Client : CPWD, New Delhi
  • Contractor : Globe Civil Projects Private Limited, Mr. Nipun Khurana, MD.

The solutions provided by RETAS for managing the water logging issues has helped us reduce water wastage drastically. We highly recommend their services and wish them luck for the future.

  • Client : NHAI, Mr. Rachit Kumar

 

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