What is an under-sink water filter?
An under-the-counter water purifier is a water purification device that can be installed under your kitchen cabinets to provide you with cleaner, healthier drinking and cooking water.
How to choose under sink water filter?
1. Water quality in the area. Tap water in different areas may contain different levels and types of pollutants, such as silt, rust, residual chlorine, heavy metals, organic matter, bacteria, etc.
2. Water demand and budget. Different water purification solutions have different filtration effects, water output speeds, filter life and replacement costs. Generally speaking, the better the filtration effect, the higher the price, the slower the water output speed, the shorter the filter life, and the higher the replacement cost.
3. Kitchen space and power supply. Under-sink water purifiers need to occupy a certain amount of cabinet space. You need to measure the size of your cabinet in advance to choose a suitable water purifier.
Based on the above three aspects, we can divide under-sink water purifiers into two categories: ultrafiltration water purifiers and reverse osmosis water purifiers.
reverse osmosis vs ultrafiltration
1. Ultrafiltration water purifier: Ultrafiltration water purifier is a device that uses ultrafiltration membranes for physical filtration. It can remove large molecular impurities such as mud, rust, residual chlorine, organic matter, etc. in water, but cannot remove small molecular pollutants such as heavy metals and bacteria.
The advantages of an ultrafiltration water purifier are that it does not require a power supply, has fast water output, has a long filter life, and has a low replacement cost.
The disadvantage is that the filtration effect is not thorough enough and cannot be drunk directly. It needs to be boiled again, or mineralized balls should be added to improve the taste and nutrition.
2. Reverse osmosis water purifier: Reverse osmosis water purifier is a device that uses reverse osmosis membrane for physical filtration. It can remove more than 99% of pollutants, such as sediment, rust, residual chlorine, organic matter, heavy metals, bacteria, etc., in water to produce pure water. The advantage of reverse osmosis water purifier is the best filtration effect, which can be directly used for drinking or cooking. The disadvantage is that it requires a power supply, the water output speed is slow, a certain proportion of wastewater will be generated, the filter element life is short, and the replacement cost is high.
If the tap water quality in your area is good, you only need simple filtration treatment, and you are sensitive to price and maintenance costs, then you can choose an ultrafiltration water purifier.
If the tap water quality in your area is poor, you need deep filtration treatment, and you value the quality and taste of drinking water, then you can choose a reverse osmosis water purifier.