Water Tanks

At Water Rhapsody we both supply and install water tanks and rainwater harvesting systems

Rainwater tanks are installed to make use of rain water for later use, reducing one’s reliance on mains water both for economic and environmental reasons.

Stored rain water may be used for watering gardens, agriculture, flushing toilets, laundry and dishwashing, washing cars, and also for drinking, especially when other water supplies are unavailable, expensive, or of poor quality.  Adequate care must be taken to ensure that the water is not contaminated and the water is adequately filtered.

Water tanks may be constructed from materials such as plastic (polyethylene), concrete, plastered brickwork, galvanized steel, as well as fibreglass and stainless steel which are rust and chemical-resistant. By far the most popular and cost effective rainwater tanks are polyethylene tanks. It is imperative that tanks are opaque to prevent the exposure of stored water to sunlight to eliminate the possibility of algal growth.

A typical metal roof will deliver 1000 litres of water from 100 square metres of roof for every 11 mm of rain. To get the same volume of water from a tiled roof one would need 16 mm of rain. Each middle class person uses 240 litres of water daily, so the draw-down from rain tanks is substantial. If one should install only two of the Water Rhapsody Systems, e.g. Garden Rhapsody (re-use grey water) and the Water Rhapsody Multi-Flush (to minimize toilet flushing); one reduces the demand for water to at worst half of the 240 litres, i.e. 120 litres per person per day, but mostly down to as little as to 80 to 100 litres per person per day. Stored rainwater then goes so much further without a change in lifestyle. The value of this calculation ensures that there is enough storage so that rainwater tanks need never overflow, and that one does not overspend on too many rainwater tanks that never fill.

Water Rhapsody has implemented a novel approach of a seamless change over to municipal supply in the event that all rain water should be exhausted. This is coupled with an emergency supply should the municipality implement water outages or when there is a burst municipal pipe.

The Water Rhapsody Grand Opus ensures at least a days supply of water at all times should the municipality water be unavailable. The system is also fool proof to ensure that it is impossible for your precious stored rainwater to flow out into the municipal system.

Electricity outages are something that pervades our age. Water Rhapsody include, in our Water Rhapsody Grand Opus, an override manifold so that if the user has no electrical power water will still be available from the municipal source. By simply switching valves in our override, one may revert to dedicated municipal water.

Water tanks are available in a wide variety of sizes and dimensions – ranging from 100 litres through to 20000 litres.
The most common being the 2500 and 5000 litre tanks.

Find out more about Rainwater Harvesting here