Rainwater Harvesting

Kingspan Envireau Rainwater Harvesting System

Economical and environmentally friendly solutions for water conservation in the home and garden, the Domestic Envireau Rainwater Harvesting system has been designed as a low cost installation for self-build projects and residential developments. Envireau works by taking the rain from your roof gutters, filtering out leaves and debris and storing the water in an underground tank. This is then pumped into the house to be used for non-potable applications such as toilet flushing and washing machines. If the tank runs empty, the system automatically switches to mains supply.

The Envireau System has two primary options:

  1. The Gravity System which uses an elevated header tank to store filtered water after the main tank.
  2. The Direct System pumps water from the main storage tank and is used where a header tank is impractical

Easy to install, simple to maintain, automatic in operation; the Domestic Envireau System has been developed to provide the homeowner with a ‘fit-and-forget’ system, ensuring an automatic supply of harvested rainwater. Designed to be as user-friendly as possible, the system utilises much of the existing pipework within the building. The main requirement being the installation of a rainwater storage tank with internal pump, selected to meet the roof areas water catchment yield and household requirements.

Water Butt from Kingspan Titan

Connecting a water butt to their gutter’s downpipe is a quick and inexpensive way of harvesting rainwater . The rainwater that is captured is naturally clean, soft with a near neutral PH content, not to mention free from the chemical treatments found in mains tap water. Plants love it. Water Butts really need to be sited adjacent to a gutter downpipe in an area accessible to the garden. A full watering can is heavy so you will not want to carry it far!

What is Rainwater Harvesting & Why is it so important?

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, especially with the introduction of Water Charges.

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. Either way, the water collected can be considered to be precious.

Rainwater harvesting techniques

The collection of rainwater from the roofs of buildings can easily take place within our cities and towns. All that is necessary to capture this water is to direct the flow of rainwater from roof gutters to a rainwater storage tank. By doing this, water can be collected and used for various uses.

If you are reliant on collected rainwater and are not connected to a towns water supply, then the water collected will be especially important to you. If you are from the city, then it is possible to replace all or at least a substantial portion of your fresh water requirements by the capture and storage of rainwater from your roof. Being largely self sufficient in water supply is possible given the correct Filtration & treatment systems been installed with the Rainwater Systems.

What is Greywater?

Greywater can be defined as any domestic wastewater produced, excluding sewage. The main difference between greywater and sewage (or blackwater) is the organic loading. Sewage has a much larger organic loading compared to greywater. Some people also categorise kitchen wastewater as blackwater because it has quite a high organic loading relative to other sources of wastewater such as bath water.

People are now waking up to the benefits of greywater re-use, and the term "Wastewater" is in many respects a misnomer. Maybe a more appropriate term for this water would be "UsedWater".

What Can Greywater Be Used For?

With proper treatment greywater can be put to good use. These uses include water for laundry and toilet flushing, and also irrigation of plants. Treated greywater can be used to irrigate both food and non food producing plants. The nutrients in the greywater (such as phosphorus and nitrogen) provide an excellent food source for these plants.

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