How to Choose a Quality Under Sink Water Filter?
Because they come with multiple technical features, it is not always easy to find the best under sink water filter for your needs. When choosing an undersink water filter you should take into account multiple features such as water supply, filter stages, lifetime and capacity of the filter, flow rate, what contaminants and chemicals it eliminates and more.
Types of Water Filters:
– Undersink water filters, they are by far the most popular type of water filters for residential use. Homeowners enjoy them because of their low-cost, easy maintenance and the fact that they don’t take up much space, staying hidden under the kitchen sink.
– Benchtop Water Filters.
– Whole house water filters which can use the existing tap setup in your kitchen sink.
– Other types like: Bottle, Jug, Tap mounted and Fridge Filters.
What is an undersink water filter:
An under sink water filter is a type of water purifier that is fitted in the bottom of the kitchen sink. It is directly attached to the cold water pipeline through which the water flows. Like any other water filter, under sink water filters are equipped with various water purification processes to remove impurities from the water. This purified water comes through the attached tap or 3 way mixer tap from which can be drunk directly. These systems can either be installed by a handy homeowner, or by a plumber.
Types of under sink water filters:
The most common type of water filters are:
– Reverse osmosis systems
– Ultrafiltration systems
– Carbon water filters
Konow your Water Supply:
The most important things to know when choosing a water filter are what type of contaminants your water has and what contaminants you are trying to remove, so before choosing a water filter you need to know your water type:
– Your water supply whether you get your water from the city, rain water tank, dam, lake, bore … etc.
– Your home’s proximity to industrial sites such as manufacturing plants, sewage treatment plants, mining operations, farms… etc.
– The type and age of the pipes and plumbing fixtures in your home.
– Once you know what’s in your water, consider which filters remove which ingredients.
Filtered Water Flow:
You should look at flow rates as these can be very different from filter to filter, and can range from as low as 0.5 litre per minute to as high as 5 litres per minute.
Maintenance and installation:
Ideally, you should be able to DIY install a water filter. Easy maintenance and filter replacement are also important to consider, after all, you don’t want your filter to be a hassle for you. The best choice is twist-on/twist-off or push in/pull out type of filter cartridges that are easy to replace.
Water Filter Tap:
Regular under-sink filters require you to have another tap for filtered water only or to purchase a 3 way mixer tap. Buy from a company that offers a wide range of water filter taps and 3 way kitchen mixer taps.
The most common types of water filtration and treatment methods (stages) are:
- Sediment Filters: are used to reduce and remove physical particles that are larger than a particular size from source water. Typical sediment filter is rated at 20 micron (ok), 10 micron (better), 5-1 micron (better yet) , or sub-micron (less than 1 micron, best but the slowest). A micron rating means that all particles larger than that will be trapped by a filter.
- Carbon Filters: Coconut shell carbon is a very powerful absorbent, Several forms are commonly used in water filtration like Granular Activated Carbon (GAC) and Carbon Block (CTO).
Carbon filters (charcoal filters) are specially designed to filter off odours, chlorine, chloramines, and bad tastes from the tap water, leaving you with clean, odourless, and great-tasting water in the end. These units come with a carbon filter that relies on the principle of adsorption to get rid of organic substances from tap water.
Carbon Filter removes hundreds of other man-made chemicals that may come into contact with tap water.
- Ultra Filtration Membranes: The latest technology in the water filtration industry, it has 0.01 – 0.05 micron pore sizes which contributes to a high removal capability of particles, bacteria, viruses, colloids and silt, thereby producing high-quality water.
Ultrafiltration can easily filter off most of the same contaminants as the RO membrane, while keeping the dissolved minerals intact.
It is normally used for mains water with TDS less than 120 ppm.
- Reverse Osmosis Membranes: RO membrane has approximately 0.2 Nano (0.0002 micron = 0.0000002 millimeter) pore sizes which contributes to a very high removal capability of ions, bacteria, viruses, colloids and silt, thereby producing ultra pure water. Reverse Osmosis Filter removes 90% – 96% of ions in water such as: Arsenic / Benzene / Barium / Calcium / Chloride / Copper / Fluoride / Iron / Lead / Magnesium / Manganese / Mercury / Nitrate / Nitrite / Potassium / Sodium / Sulphate / Total Dissolved Solids / Zinc.
- Alkaline Filters: produce alkaline antioxidant water, Hydrogen-rich alkaline water (8.5 to 9.5 pH), they have a superior anti-oxidation effect. Drinking alkaline water provides many benefits that may increase your all-over health. Alkaline water has a higher pH level than tap water, which can be particularly useful if you have acidic water.
- KDF Filters: Kinetic Degradation Fluxion (KDF) is a high-purity copper-zinc formulation that uses a basic chemical process known as redox (oxidation/reduction) to remove chlorine, lead, mercury, iron, and hydrogen sulfide from water. The process also has a mild anti-bacterial, algaecitic, and fungistatic, effect and may reduce the accumulation of lime scale.
- Mineral Cartridges: The mineral filter is mainly used as a final stage in RO systems which remove most of minerals from the water.
The mineral filter is specially designed to give us essential mineral to our body by using mainly a special formation with Calcium, Anti bacterial, Hydrogen Reducing, Fir Mineral balls.
It removes harmful Active oxygen(free radical) and improves antioxidant effect such as Vitamin C,E enhances the Bone Regeneration as well effective some illness.
Excellently emits FIR(far infrared rays) for the activation of our metabolism. Contains essential inorganic minerals for our good health. Safe drinking water by antibacterial & disinfection silver (Ag 99%).
- Ultraviolet (UV): It is the most effective and safe method for disinfecting water. Ultraviolet (UV) rays penetrate harmful pathogens in water and destroy illness-causing microorganisms by attacking their genetic core (DNA), this is extremely efficient in eliminating their ability to reproduce.
Disinfecting your water with Ultraviolet light is exceptionably simple, effective and environmentally safe.
UV systems destroy 99.9% of harmful microorganisms without adding chemicals or changing water’s taste or odor.