Which One Is Right for Me?

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The first step in selecting a purifier is to decide if you need a reverse osmosis (RO) or ultraviolet (UV) system. RO is best for removing salt, chemicals, heavy metals, viruses and bacteria from your water supply. UV systems are good at killing bacteria and viruses. Next, select what type of water you will be purifying; tap water or well water? Finally,

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determine how much space you have available in your home because all three types of purifiers vary in size. First, let’s review RO systems. They work by passing water through a membrane that blocks anything larger than 1 micron while letting H2O molecules pass through. Reverse osmosis filters come with an attached storage tank so there’s no need to buy one separately. Most models are single stage meaning they remove most substances but not everything. A second stage can be added to provide further filtration on demand.

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A major drawback is that this process uses more energy than other methods so it may cost more depending on where you live and how much electricity costs in your area. RO units also take up a lot of countertop space and some are noisy. Now let’s take a look at UV systems. These use ultraviolet light to kill microorganisms like bacteria and viruses, which means they don’t require additional chlorine treatment like many traditional models do.

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For those who don’t want to drink chlorinated water or are worried about the taste, UV may be their best option. However, these units typically produce less purified water since there is no post-filtration stage like RO does so dissolved solids could end up in the final product. One downside is that these units often require yearly maintenance including replacing the bulbs which can get expensive over time.