RAIN HARVESTING: HAVE YOU HEARD OF IT YET?

Source: http://kscst.org.in/

Last weekend I had the pleasure of looking out the window to endless hours of rain. It dawned on me that each house in my estate was failing to take advantage of  the potential savings to be made from the water falling from the sky. Out of shear boredom I decided to collect the rainwater in an old oil drum and then a few days later use this water to water the flower beds in the garden with a jerry can. Although it was unnecessary as the garden was saturated from the previous few days of rain, I carried out the task in order to evaluate the practicality of collecting rain water in order to utilise it for mundane water consuming tasks, such as watering the flowers. Not to my surprise, there were ample amounts of water for the plants and even a bit to spare.

This set me thinking of how feasible would it be to construct a water collecting unit in my back garden (possibly on the shed roof to take advantage of the forces of gravity), to which one could attach a hose pipe (I believe jerry cans to be a bit out dated) and hey presto you have a free water source. This may seem totally irrelevant at present but when water meters are introduced, and money is leaking from that external back garden tap then we will see the method in the madness.

The idea of collecting rainwater in order to use for mundane tasks extends beyond your mother’s flower bed (or even your own). There is no reason why rainwater can’t be used to wash a car, fill a water balloon or even clean the decking. It is evident that more sustainable methods of consumption (in this case for water consumption) exist all around us, it just requires a little ingenuity and innovation to realise a more practical and sustainable way of life.

When I eventually got around to researching “rain harvesting”, as it turned out to be called, I discovered that there already exists numerous companies providing such services (below are links to some of their websites). However, such companies appear to be under the radar with regards to public interests. No doubt this will change with some clever marketing post the introduction of water meters to Irish households in the near future.

To give some gravitas to my argument, the following quote taken from the Irish Water Treatment Association’s website, highlights, in my view, the necessity and complete feasibility of rain harvesting in Ireland;

‘Much of the water we use doesn't need to be of drinking quality. In fact studies show that 55 per cent of domestic treated water could be substituted for rainwater while 85 per cent of water used for commerce and industry does not need to be of drinking standard’.

It makes all the sense in the world, right? Even the ancients were at it!

Darren Morrell 

Some rain harvesting companies:

http://www.rainharvesting.ie/; http://rainman.ie/; http://raincatchers.ie/; http://www.hrdtec.com

Water, water everywhere...?

I’ll be the first to admit that I’m not known for my water conservation awareness. Growing up on an island with seemingly endless water has left me somewhat detached from the reality of the need to conserve water. To be honest, I’ve always found that we have too much… constant rain, rivers, canals, lakes, and, of course, the Atlantic Ocean. However, the recent media coverage about upcoming water charges and the need to conserve it left me thinking, what if I could no longer simply turn my tap to get the water that I needed; no longer run to the local shop to buy it?

The very thought of this is completely alien to me. Not to be able to turn on the tap to brush my teeth, no water to heat my house, no 15 minute shower in the morning, no water to cook or to make tea with, no water to wash my dishes or clothes, and above all else, no water to drink. But, like I said, we’re an island country. There’s water everywhere. So I thought of where I could go to collect water. A canal runs just behind where I live, but rather than fight off rats, and getting tangled in old bicycles and trollies, I had to think of some cleaner options. It soon dawned on me that this was not a simple task. Any sources of water I could think of were tainted by urban life. Polluted, dirty water was all I could find. Either that, or undrinkable sea water.

Assuming that there were no clean fresh-water wells around, I would have to get out of the city. I would have to trace a river far enough to its origin to minimise pollution. How long would I have to follow the river upstream to find a fresher supply of water? Taking the Liffey as my example, the answer is roughly 20km, or so Google Maps tells me. To walk, this would take a mind-numbing 3 hours 59 minutes. By car, 27 minutes in light traffic. Even if I filled a car full of water and stored it in my home, I would have to make serious changes. Gone would be the days of my leisurely showers, the ease of my dishwasher, and the comfort of my heating.

I would have to think of ways of making my water last. I decided to actually try these over the course of a day, to see how hard it would be to think consciously about my water consumption. Quick showers (with simultaneous teeth brushing), measured water for tea, and washing all dishes together in a basin, were the easy ones. Toilet flushing and clothes washing weren’t so easy to avoid. I very quickly realised how clean and safe water was taken advantage of in this country, and that many small measures could be taken to minimise waste. Perhaps the notion of no clean water wasn’t so farfetched. For millions of people, this is a constant reality. Though we’re a small island in the grand scheme of things, a little goes a long way. And we must all work to change our misguided attitude towards water.

Daragh Poynton  

Ireland and Water Scarcity

As we pass from spring toward the summer months, it becomes more important that we are aware of our day to day water usage. Water scarcity is quickly becoming a reality for many people, the world over with the current forecast being bleak – it is predicted that in twenty years, global water demand will exceed 40% of its value today. Two major factors affecting the water demand are the increasing global population and the impacts of climate change. Despite this being a global issue, solutions can be found at the individual level. Becoming more aware of our water usage and its impact on the planet can serve to alleviate this issue before it reaches a critical level.

In a survey conducted by Ideal Standard, a bathroom furnishings company, the average Irish person was found to directly use about 150L of water per day through toilet flushing, hygiene and other such activities. This is considered to be greatly in excess to what is actually necessary to carry out such activities. Consider this in addition to the fact that water used for boiling, washing and drinking is all the same in Ireland and that ‘cleaner’ water is consistently being used for tasks that do not require such treatment of water.

Common ways to save water in the home are to:

·         Take shorter showers

·         Fix dripping/leaking taps and pipes

·         Don’t over-water plants and gardens

·         Don’t flush napkins or cigarette butts

·         Don’t let the taps run while washing dishes/vegetables/brushing teeth.

There are hundreds more ways to reduce your direct water usage and by everyone making small changes to everyday tasks, we can help reduce the effects of water scarcity.

James Condren