Ms. Wen from Leshan, Sichuan, is the first customer to install the complete set of ChengrongEra Mineral-style Whole House Water Filtration System. Unlike our previous customers, the installation of Ms. Wen’s whole house water filtration system was full of twists and unexpected setbacks. It is well worth documenting in a series of articles for record, sharing and reflection.

First of all, I think it is necessary to let you guys understand that what exactly is a complete set of mineral-retaining whole house water filtration system?

Most customers only have a one-sided understanding of whole house water filtration systems, like, urban residents generally believe a watrer filter is merely an under sink water filter installed in the kitchen. By contrast, rural customers tend to regard a water filter as a whole house water filtration system mounted on the main water inlet pipeline. 

In fact, a complete whole house water filtration system consists of both a whole house water filtration system at the main pipeline and an under sink water filter in the kitchen. The whole-house unit on the main inlet pipeline improves the overall water quality of the entire house. It filters water for bathing, laundry, dish washing and vegetable cleaning, keeps the household water pipeline system clean, and extends the service life of water-using appliances.

The under sink water filter is dedicated to drinking and cooking with better water taste.

Ms. Wen chose the ChengrongEra Mineral-retaining under sink water filter mainly because she has a baby at home and attaches great importance to drinking water health. The system delivers filtered water that is both clean and healthy.

Furthermore, unlike many industry peers, ChengrongEra has also conducted a full range of Authoritative Testing to verify the performance and safety of ChengrongEra mineral-retaining under sink water filter. We hold official water approval certification (Approval No.: Yue Wei Shui Zi (2026)-02-S0177). We also have an SGS test report certifying the material safety of our ultrafiltration membrane filter cartridges, which fully comply with the NSF/ANSI 58-2023 standard.

These tests involve extremely high costs and impose stringent quality requirements on water purifiers themselves. Many water filter brands on the market skip such tests for two reasons: one is to cut costs; the other is that their products cannot pass the tests honestly without falsifying data. However, ChengrongEra has passed all tests at the first attempt, a rare feat unmatched by almost any other player in the industry.

We shared all these test reports with Ms. Wen to reassure her.

As a factory brand ranking among the top 1% in manufacturing, product functionality and structural design, the parent factory of ChengrongEra — Shenzhen Chengrong — boasts 19 years of expertise in stainless steel ultrafiltration water filter industry and ranks among the TOP 3 manufacturers. We have full confidence in our raw materials, semi-finished products, craftsmanship and technology, structure and details.

The core filter material of ChengrongEra mineral-retaining under sink water filter — the residual chlorine removal ultrafiltration membrane — is Chengrong’s exclusive proprietary technology, with no equivalent worldwide. Even global top-tier brands cannot achieve residual chlorine removal with ultrafiltration membranes, while Chengrong has made it possible. Filtered water treated by our residual chlorine removal ultrafiltration membrane shows no detectable residual chlorine even with precision testing instruments, truly achieving mineral-style direct drinking water quality.

What most consumers do not know is that activated carbon easily breeds bacteria while absorbing residual chlorine and improving water taste. ChengrongEra's innovative structure design effectively avoids secondary pollution caused by activated carbon, which is one key reason why our mineral-style filtered water is both clean and healthy.

After our detailed explanation, Ms. Wen logically recognized the advantages of ChengrongEra mineral-retaining under sink water filter. Moreover, both the activated carbon fiber for taste improvement and the residual chlorine removal ultrafiltration membrane adopt filter media benchmarked against international top-tier brands, with a dosage 2 to 3 times higher than mainstream competitors on the market.

Regrettably, the installation of Ms. Wen’s Mineral Water-like Whole house Water Filtration System was far from smooth, filled with twists and unexpected issues.

Nevertheless, the ChengrongEra team successfully completed the installation despite all difficulties, something I am most gratified about regarding our team. And I also have to admire that all of this is built on the customer’s trust in ChengrongEra.

Due to length limitations, I will share the detailed twists and turns of the whole house water filtration system installation process in the next post.

Thank you for your reading.

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