An RO system (reverse osmosis) uses a series of filters and treatments to change your
own water supply into an almost pure water product.
The typical RO system is a five-stage unit utilizing three stages of pre-treatment
(one sediment and two carbon filtration) then a TFC membrane and then the subsequent pure water and waste
water are routed to both the tank and traditional drain connections.
The reason for the drain connections is that some RO systems can produce 20 litres of
waste water, for every 1 litre of pure water that's produced. This figure is being improved upon on an almost
daily basis and most RO systems now work on around 4 litres of waste water for every litre of pure water that's
produced.
If you need to produce 1000 litres of pure water per day, then it's likely that you'll
have to find a way to dispose of the 4000 litres of waste water that you'll also produce as a by-product.
This wastage results in millions of litres of perfectly usable water being re-directed to
peoples' drains every day of the year as this is the quickest, easiest and cheapest way for people to dispose
of the waste water they've produced.
Zero Waste RO System
As a result of this huge waste, there are several Zero Waste RO systems that have
already been developed and these use various ways of re-routing your waste water back into your main water
supply which is then passed through your RO system again, resulting in the production of your pure water with
absolutely no waste water at all being dumped into your drains.
A zero waste RO system is certainly worth considering if the water you are using is coming
into your premises through a water meter. By cutting the amount of water used to produce your pure water, from
4 litres per litre to 1 litre per litre, your pure water will be costing you a quarter of what it is
currently costing you to produce.
Have a look at how much your water company is charging you for your water, and you'll see
how much a zero waste RO system will save you each and every month on your water bill.
If you do use a water meter, how many months will it take you to recover the initial
outlay for your zero waste RO system through using less tap water to produce each litre of pure water? Also,
think what you'll be doing to help the environment and to reduce the size of your carbon footprint.
You can find information on the Zero Waste RO Sytems by typing the following text into a
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