The Difference Between Passive & Active In Rainwater Harvesting?

Rainwater harvesting

There is a huge interest in water conservation and specifically in capturing and reusing rainwater in both residential and commercial buildings to reduce costs, environmental impact and lessen the load on municipal sewer.

Rainwater harvesting from rooftops is one of the solutions to conserve our precious water. There are two general types of rainwater catchment systems – active and passive. Most professionally installed systems incorporate aspects of both to maximise the water conserved.

Active rainwater system: It is the catchment system that actively collects, filters, stores and reuses natural water. The storage is the most visual aspect of an active system with large tanks. It also incorporate pumps, and filters the water. These are active components that require regular ongoing maintenance to run effectively and efficiently.

Passive harvesting system: In comparison to active systems, this incorporates no mechanical method of collecting, cleaning and storing rainwater. The intent with passive rainwater management is to create areas to contain waters until they can naturally be absorbed into the land. Vegetative swales, dry creek beds, and pervious concrete or pavers are types of passive collection systems. Passive systems can be relatively inexpensive and are generally simple to design and build.

Which is the best?
In most cases, one or the other can be used and can be highly effective; however, there are cases where one technique is better than the other, so both should be considered when looking at catchment systems. It actually depend on various conditions, the understanding of which can be made simpler by hiring professionals offering quality rainwater harvesting solutions in Kerry.

While active systems are more complex and expensive than passive, they have the ability to store large quantities of both winter precipitation and summer monsoon rains and move it to specific locations, where it is needed. Generally active systems are beneficial to irrigation systems but can also be utilised for indoor applications. Both types of catchment systems greatly reduce overall water consumption, but one major distinction is that active systems can also help reduce indoor water usage.

Passive systems require a bit more maintenance compared to active ones. They can be incorporated in most new or existing landscapes without major expenses. Building berms and swales to channel rainwater and slow it down to allow it to infiltrate are great places to start. Passive systems are a great resource for those interested in fully understanding how these systems work and how they can be used on both large and small projects.

Harvesting rainwater is a great option for conserving our precious water. Either passive or active, both of them save water significantly and should be incorporated in any harvesting project.


What Are The Perks Of Rainwater Harvesting?

Rainwater Harvesting

The process of collecting water from rainfall is called rainwater harvesting. This is a traditional process that has been in practice for years. The water is collected and stored for future needs in places where water is not easily available. Recently the practice of rainwater harvesting has become more popular. Many homeowners in Cork are dependent more on the stored water rather than ground water, and it is basically collected in large tanks & then stored inside the containers.

There are numerous perks of rainwater harvesting, the most important of which have been discussed below in detail –

Free of cost 

free of cost
No extra charge is required to collect the rainwater. If you have sufficient storage space to hold it for future use, then you need a few other pieces of equipment, which are generally not very expensive. Besides, the water bills or taxes can easily be eliminated from your annual expenses.

Clean water

clean water
Rain water is the most healthy, hygienic and clean source of water which can be used for nearly any purpose. You don’t need to filter it for utilisation in regular household tasks, such as cleaning, washing the car, watering the plants, bathing and so on.

Can be used for numerous purposes

Water is an essential part of our daily life. If it becomes scarce, a lot of our quotidian tasks would be hampered. Thus, storing water and keeping it aside for future use is one of the best ways of utilising the aqua to the fullest. With rainwater, you can have the water filtered thoroughly with an appropriate filter to use it for the purposes of drinking and cooking.

Can be used for irrigation

Because rainwater is natural and chemical free, so it can easily be used for irrigational purposes as well. Additionally, it can also decrease the rate of soil erosion and reduce flooding during heavy rainfall.

Environmental friendly

Rainwater, without any doubt, is an environment friendly resource and it’s usage doesn’t cause any damage to mother nature at all. It is much better and always prudent to use fresh and natural (plus, filtered) rainwater for drinking and cooking purposes. Using hygienic water is always a good practice that must be followed by every individual.

Thus, the process of rain water harvesting is one of the best environment friendly things that one can do.

A Brief Introduction To Rainwater Harvesting

Rainwater HarvestingAs we all know, water is undoubtedly the most precious and priceless natural resource available to all forms of life on Earth. In the recent times, many countries, including Ireland, have to deal with the issue of water scarcity, especially in regions like Cork & Perry. And though there are quite a number of solutions that can be implemented for combating the problem, there’s one which is very cost-effective and simple to use – rainwater harvesting.

By definition, rainwater harvesting refers to a process involving three steps designed to collect rainwater accumulating on surfaces like roofs, storing it properly and distributing it later for outdoor & indoor applications. Rainwater is a sustainable, safe and economical source of clean and quality water – all one needs to do is know how to capture & store it in the right way. It is much safer compared to the water distributed via mains, since the latter is treated using chemicals for eliminating bacteria and later pumped through pipes that might contain harmful contaminants like rust.

In general, rainwater harvesting is a simple water-saving technique that can be carried out easily on clean roofs. But what if the roof of a property is dirty? There is a solution for that too – installation of several rain diverters or first flush devices which are readily available in the market. These devices are designed specifically to flush or divert the foremost water flow from a storm. As such, any bacteria, dirt or other contaminants present on the dirty roof does not get a chance to enter the storage tank.

There are several social, environmental and economic benefits which can be reaped from the practice of harvesting rainwater. One of its greatest perks is less reliance on other man-made systems such as storage dams. This, in turn decreases the need to expand the present infrastructure of water storage. Another golden benefit is that it can help to cut down on water bills. The stored water can be utilised for various non-drinking purposes such as washing clothes, watering gardens, flushing toilets, washing cars and so on. It is also ideal for use in irrigation due to being devoid of any chemicals.

Thus, it is evident from the above mentioned information that rainwater harvesting is a great way to tackle paucity of water and also put less pressure on other natural sources of the same.