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The city supply of almost every world capital provides hard water with a distinct, overbearing taste. It also tends to leave a crusty, persistent layer of limescale on our dishes and cookery. Just imagine what it may do to our internal organs if we consume it in excess.

We have researched into the subject, and found out that the accumulation of these nasty deposits is associated with mineral imbalance, cardiovascular diseases, kidney stones, reproductive system issues and even cancer!

An average family uses a lot of water for drinking and food preparation, which translates into gallons of bottled water for critical areas. An increasing pile of disposable plastic containers often leads them to realise they need a more convenient, eco-friendly solution for their daily water needs.

To our delight, we have found out about these two great filtering systems that have stellar reviews, the Reverse Osmosis (RO) and Ultra Violet method (UV). To help you opt for the one that fits your particular needs, we performed an objective comparison of key traits of these two water purification systems. Here are the results.

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UV water filters

This filter utilises UV rays to sanitise water effectively and remove harmful bacteria and viruses. In short, they prevent further reproduction of pathogens by damaging their DNA strings.

This is a great way to get rid of bacterial cultures found in certain water sources. Its downside is that it removes the good bacteria as well. The UV process is lauded for its chemical-free nature, which allows water to retain the expected odourless and taste-free character. The filters also require little maintenance and energy to work properly.

The upkeep is relatively simple and doesn’t require professional assistance or service. Your only task is to occasionally replace the UV bulb. While they stand out when the quantity of purified water is in question (it’s unlimited), the system cannot extract inorganic impurities.

RO water filters

Reverse osmosis filters rely on the process opposite to osmosis (filtering water through a semipermeable membrane towards the high solute concentration). Basically, RO filters push the water from concentrated solutions down the system through the pore structure to the place where we can collect it.

The tight structure of RO filters is remarkably effective in removal of water impurities such as asbestos, lead, TDS (total dissolved solids) and various toxic metals (strontium) and radioactive elements (plutonium), claim Sydney-based pros for reverse osmosis water filters.

The RO filtering process also includes the ion exclusion part. This means that dissolved molecules such as sugar and salt are captured, as well as microbial particles.  Chlorinated pesticides also make the long list of substances Reverse Osmosis filters can handle.

The process itself is slightly slow and can only obtain a certain number of gallons per day, which normally meets the needs of an average household of 4. The apparatus is fairly inexpensive and demands low maintenance the owners can carry out themselves.

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Global statistics – Wake-up call

Most of us are lucky to have a source of water that can be filtered and the means to make it drinkable and pollutant-free. No less than 36 countries around the world are struggling with lack of potable water sources, such as Ghana, Bangladesh, Cambodia and Afghanistan.

Since the global data show that the water stress zone is spreading and starting to involve even the highly developed countries, we must stop wasting what we have. Moving from bottled water to energy-efficient filters has become an imperative in the places with moderate water pollution. Join in the planetary battle and make your water use more sustainable and healthy.

Both of these filters have their advantages and specific areas of expertise. UV filters are great in removal of all microorganisms, but tend to remove the good ones as well. On the other hand, RO systems can filter a vast array of harmful substances, including toxic and radioactive substances, but they have daily quantity limitations. The ideal situation is having both of these filtering solutions in one merged system, but you wouldn’t make a mistake if you pick either of them.