Rainwater harvesting is not a new concept; it is an ancient practice. It is a technique that collects and stores rainwater for irrigation, laundry, toilet flushing, pool top-up, wash bays and as an off-grid/alternative supply of water. In some areas it is still the only supply of water. Rainwater can be collected from various hard surfaces such as rooftops and/or other man made above ground hard surfaces. Rainwater harvesting is growing in popularity due to an overall interest in reducing the consumption of potable water and the inherent qualities of rainwater. Unfortunately urban living, population increase, climate change, failing infrastructure, pollution, our lifestyles (to name a few) are all contributing to a worldwide water crisis. It is actually really very simple; our demand exceeds our supply and to sink another borehole isn't the answer; we are busy depleting our groundwater supply. To secure a future with enough water we have to save water; we have to harvest rainwater, because:
- It is a natural resource and reduces flooding, storm water runoff, erosion and contamination of surface water.
- It reduces the need for purchasing bottled water.
- It is an excellent source of water for irrigation
- It is relatively simple to install, depending on the application.
- It reduces your water bill.
- It supplies water during water outages.
- It promotes water and energy conservation.
The best part is you don't have to change your lifestyle; you don't have to start sharing showers and/or baths and you definitely don't have to shower in a bucket. Life can continue as usual whilst saving water. Always remember "Prevention is better than cure".
Harvested rainwater can be used for many applications :
Rainwater Harvesting for Irrigation:
Rainwater harvesting for irrigation is very popular, because rainwater is such a good source of water for irrigation. Whether for commercial or residential property owners, we will find a system that suits your needs and budget. We can install a big tank farm and/or underground reservoir or a small single tank, like the Jojo Slimline for a veggie garden. We specialize in water conservation and water management and will find a solution to ensure that your gardens and lawns remain green and fresh all year round, especially when combining rainwater harvesting with our recycled grey and/or black water for irrigation. We highly recommend and install drip irrigation, both surface and subsurface. Drip irrigation can save up to 70% of water and will make your harvested rainwater last so much longer. Our team is highly skilled and has the knowledge to install a system for you that is aesthetically pleasing and that will reduce your water demand.
Rainwater Harvesting for Laundry:
Whether your goal is to save money or the environment, to waste water for laundry is unnecessary. Washing machines are one of the largest consumers of water in the home. An average family of four can save more than 20kl of clean drinking water a year by using rainwater instead of municipal water. Most people detest wasting anything, especially water in an already water stressed country. Rainwater harvesting for laundry not only saves water, but also money. Rainwater contains no limescale-causing minerals compared with tap water; you will therefore also need less detergents. Our skilled team will determine the storage capacity, based on the roof area than can be used for harvesting, vs your consumption to ensure an aesthetically pleasing installation. We will also ensure that the harvested rainwater is filtered accordingly, preventing damage to either your washing machine or clothes. We can also add to/upgrade this installation and work towards a complete rainwater harvesting off-grid system.
Rainwater Harvesting for Toilet Flushing:
Flush rainwater than the loo, not money! By using a rainwater harvesting system you reduce your water bill and conserve water at the same time. The practice of rainwater harvesting is becoming more prevalent as water costs rise and fresh water resources become more scarce, whether due to drought, climate change, pollution or a failing infrastructure. Companies and home owners are turning to rainwater harvesting systems in order to supplement the water needs of their facilities.
Harvested rainwater can be used for any and all water needs and is very popular for toilet flushing in the home / commercial / ablution facilities. The end use of rainwater determines how much filtration is required. Our specialized team will ensure your cistern(s) is protected by filtering the water accordingly and install as per the Council's requirements. Living in a country with interrupted water supply and water restrictions it is vital to use rainwater as an alternative supply of water.
Rainwater Harvesting for Pool Top-up:
Filling a swimming pool or spa with filtered, clean rainwater, either directly from your roof/gutter or from rainwater tanks saves money and eases the pressure on our already burdened water resources. Harvesting rainwater from roofs constructed of hazardous materials (such as lead or preservative-treated timber) or located in heavily polluted areas (pollution from vehicles or airplanes and industrial areas) may contaminate rainwater and will need additional filtering.
In South Africa, high summer temperatures are mostly to blame for evaporation. The more your pool is exposed to the sun the more evaporation you’ll see. A covered pool or a pool surrounded by trees will evaporate less than an unscreened / open sky pool. An average size swimming pool can lose up to 5 000L of water through evaporation per month. Rainwater harvesting for pool top-up is the smart thing to do.
Rainwater Harvesting for Car Wash/Wash Bays:
Most garages and/or auto repair companies will treat the client to a washed clean car upon collection. Washing any automobile/airplane/truck requires a lot of water. Our company specializes in water conservation and rainwater harvesting is indeed one of the most common alternative supplies of water. Rainwater Harvesting comes in all shapes and sizes, from simple catchment systems to large above and/or underground systems, especially when space is a concern. Filtration can be simple or complex and thousands of litres of water can be stored and used instead of municipal water. Rainwater harvesting at any wash bay lessens the burden on our water resource, especially when combined with our recycled grey water system for wash bays. Not only will you lessen your municipal demand, you will save money and ensure water even during a water outage or over a water restricted period. Saving water isn't an option anymore, it is our duty as human beings to ensure a future with water.
Rainwater Harvesting as an 'Off-grid' option:
Stormwater harvesting is the collection of runoff water collected from drains or creeks, or from any other man made catchment area/surface, such as roads. The biggest challenge stormwater harvesting poses is the removal of pollutants in order to make this water available for reuse. Stormwater harvesting is practiced across the world as a way to address rising water demands as populations increase and our available water resources are becoming limited due to climate change and uneven rainfall distribution.
Surface runoff water is polluted and is not recommended for household use. At home, after appropriate filtering, it can be re-used for irrigation, car wash and toilet flushing. In commercial premises it can be re-used for toilet flushing, vehicle washing, dust suppression etc. The degree of treatment required depends on the proposed use, particularly when exposed to the public. Additional treatment may be required for specific industrial uses.
Some benefits of stormwater harvesting:
- Reduce demand for mains water
- Reduce flooding issues
- Reduce stormwater pollution downstream
More than 50% of clean drinking water is used for other purposes, such as irrigation and toilet flushing. Re-using stormwater is ensuring a future with enough water, especially in a semi-arid country like South Africa. Our innovative team will ensure you have an aesthetically pleasing installation that will help you save water and money whilst reducing any flooding issues.
Stormwater Harvesting for Irrigation:
Irrigation consumes roughly 30% of total household water, depending on the premises and season. To use pure drinking water for irrigation is both irresponsible and unnecessary. Stormwater is a great alternative source of water for this purpose and will save you money whilst conserving water.
The type of irrigation system will determine the degree to which the stormwater needs to be treated before reuse in order to reduce health risks and clogging of irrigation pipes and valves. We highly recommend drip irrigation for both flower beds and/or lawns. Drip irrigation can save up to 70% of water and will make your harvested stormwater last so much longer.
Stormwater Harvesting for Toilet Flushing:
Toilet flushing has a relatively constant demand throughout the year and accounts for approx. 15% of internal household water use. Stormwater is a great alternative supply of water for this application. To use clean drinking water to flush toilets is completely unnecessary and irresponsible.
Our team will ensure you have an aesthetically pleasing installation that will help you save water and money whilst reducing any flooding issues. The water will be filtered appropriately to protect all types of cisterns.