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Rainwater HarvestingAdmittedly it’s hardly rocket science. Free water comes out of the sky, so why not collect it and use it around the garden, for flushing the loos or for some other uses around the house? Roof water is collected via down-pipes feeding into a storage chamber. This is preferably an underground storage tank. Water is then pumped to point of use when required. Is it right for you?Installation does require excavation works and, if domestic usage is required, there’ll be a need for some plumbing too, so rainwater harvesting systems tend to be favoured by those undertaking a new build or refurbishment. However, if the collected water is only required for garden use, systems can also be retro fitted relatively easily. Deciding on types and optionsBoth underground and above ground systems are available on the market. East Green Energy recommends the use of underground storage to avoid stagnation and to provide an adequate supply of water. Underground storage tanks range in capacity from 1600 to 13,000 litres. When correctly sized, up to 21 days of drought protection can be achieved. Planning considerationsPlanning departments now look favourably on projects which include rainwater harvesting. The Code for Sustainable Homes which assesses homes for sustainability in 9 categories, including 2 to do with water actively encourages the installation of rainwater harvesting systems. It is also proven that collecting rainwater also contributes towards avoiding floods. East Green Energy recommends that you always check with your local planning department prior to any works taking place. |
