The economy is continuously improving, and people's living standards are gradually rising. However, with this progress comes an increase in environmental pollution, which has led to a growing concern about the safety of drinking water. More and more families are now considering installing household water purification systems, especially during home renovations, as some of these systems require careful planning for plumbing and electrical connections.
**1. Is tap water clean?**
In China, most tap water is treated using chlorination, but the long-distance transportation through pipes can lead to secondary contamination. Tap water may contain residual chlorine, impurities, rust, heavy metals, bacteria, viruses, and various organic and inorganic compounds. Boiling water can kill most bacteria, but it doesn't address other contaminants. While boiling is a common practice, many of the potential risks are chronic and may not show immediate effects. Therefore, investing in water purification can be a wise decision, especially if your budget allows.
**2. What are the needs for household water purification?**
Household water usage is diverse, covering activities like brushing teeth, washing face, bathing, doing laundry, washing vegetables, cooking, drinking, flushing toilets, and watering plants. Based on water quality requirements, I classify these uses into three categories: general cleaning, personal hygiene, and drinking.
There are several types of water purifiers available, each designed for specific purposes. The most advanced one is the RO (Reverse Osmosis) membrane water purifier, which provides the cleanest water suitable for direct consumption. This system requires electricity and produces "waste water," so it's important to plan for a power outlet and drainage during installation. It's typically placed under the sink, and the waste water is connected directly to the sink’s drain. Some models come with a storage tank, while newer ones do not, offering faster filtration due to a larger RO membrane area—though they tend to be more expensive.
If you're choosing an RO water purifier, make sure to check the wastewater ratio. Avoid models that produce too much waste water or none at all. A balanced ratio is ideal. Also, remember that the filters need regular replacement, usually every 6 to 12 months, depending on water quality. Annual maintenance costs can range from a few hundred dollars.
Another option is the ultrafiltration water purifier, which can remove residual chlorine, impurities, and most bacteria, but it doesn’t eliminate scale or heavy metals. It's more affordable but not recommended for direct drinking.
Water softeners are another type, though they don’t technically purify water. They reduce hardness by removing calcium and magnesium ions, making the water feel softer. This is beneficial for those with sensitive skin or in hard water areas, as it reduces scaling on appliances and improves soap efficiency. However, they are expensive and take up a lot of space, so they’re only necessary if your water is very hard.
Lastly, pre-filters are essential. Installed after the main water meter, they remove large particles like rust and sediment, helping to extend the life of other purification components. These are relatively inexpensive and often feature manual backwashing for easy maintenance.
In conclusion, for most households, combining a pre-filter with an RO membrane water purifier offers the best solution for safe and clean drinking water. It’s always a good idea to assess your local water quality and choose the right system accordingly.
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Sync and charge up to 30 tablets, phones, or other mobile device, without the need to connect to a computer
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