Rainwater Harvesting

Rainwater Harvesting is an Inexpensive, Eco-Friendly Way to Save Money

It is something of an irony that, as inhabitants of a semi-arid country and one that has recently experienced one of the most severe droughts in its history, when the clouds do finally release their contents, most of us will simply allow them to disappear into storm drains or soak into the earth. While this is a necessary part of a continuing cycle, water shortages remain an ongoing problem. In practice, rainwater harvesting could serve to alleviate some of that problem and, in the process, ease the strain on your pocket caused by rising municipal tariffs.

It is an option that will cost relatively little while offering you the potential to recover the initial cost quite quickly. Once operational, it will continue to provide you with savings, ensuring an ongoing return on your investment. The installation is generally best left to a professional because the system consists of special guttering and pipes that conduct the recovered water via a pre-filtration system into a suitable tank which then serves as the storage component of your rainwater harvesting system.

Choosing a tank with sufficient capacity will be crucial to the effectiveness of your system. Quality JoJo tanks carry a 10-year guarantee and range from 750 to 10 000 litres. The tank should be chosen according to the surface area of your roof, as this will determine the potential catchment volume. It should also be placed on a solid, level surface or, if your ground is too soft or uneven, mounted on a plinth and, ideally, positioned at a downpipe. However, with suitable piping, it can be located elsewhere if you would prefer to keep your new rainwater harvesting installation out of sight.

Over time, your roof accumulates all manner of contaminants and so, without a more effective water purification system, it will not be safe to drink. Nevertheless, even without any additional treatment, it will be perfectly suitable for tasks such as irrigation or to clean patio floors, driveways and the family cars. Catering for these tasks, alone, is likely to result in a substantial saving on your monthly water bill. Given the fact that South Africa is faced with a nationwide water crisis, your newly-installed rainwater harvesting system will also be helping to alleviate some of the pressure on the country’s reserves.

The more consumers who are willing to adopt this simple conservative measure, the less serious will be the threat to the entire nation of future droughts. That said, to keep enjoying its benefits, it will be necessary to look after your system and ensure that it can continue to perform as efficiently as possible. Firstly, before the rainy season begins, be sure to give your roof a good clean and check on it monthly to see it stays that way. Some mesh over the gutters should help prevent leaves from fouling the pre-filtration system, but check it regularly to see that it is free of obstruction. 

A well-designed rainwater harvesting system, correctly installed, should prevent any detritus from entering the tank, but it is wise to inspect the interior every three months just to be certain. If any detritus is getting through, it would be best to contact the installer. 

For more information about rainwater harvesting, contact our Water Pump Group today. Our professionals are standing by to answer any questions you may have to help you save water this rainy season.



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