Category: Factory Diary

In the household water purification field, what is the difference between reverse osmosis (RO) and ultrafiltration (UF)? Should households choose an RO water purifier or a UF water purifier for long-term drinking? These are among the most common questions consumers ask when choosing water purification equipment. Reverse osmosis (RO) uses a semipermeable membrane of approximately…

Recently, at the request of Mr. Li, a major client in Beijing, we tested a filter cartridge marketed as China’s “No. 1” purification brand—priced several times higher than ours. We sent the ChengRongTimes PVC-alloy ultrafiltration membrane cartridge and the competitor’s filter cartridge to a laboratory for comprehensive testing under identical membrane area conditions. The results…

Stainless steel does not mean “steel that never rusts.” Instead, it means steel with much higher resistance to corrosion. The reason why 304 stainless steel resists rust is that elements such as chromium and nickel are added to the steel. These elements would react with oxygen in the air to form a thin, dense, and…

Description: Looking for a reliable home water filtration system? Learn why ChengrongTimes uses 0.1 μm ultrafiltration, washable PVDF membranes, 316L stainless steel and a 5-year membrane cartridge warranty for whole-house water filtration. What Is a Home Water Filtration System? A home water filtration system is designed to improve water quality throughout the entire house rather…

A homeowner recently posted a question online: I’m renovating my new home and planning to install an under sink water filter in the kitchen. However, I’m confused by the different filtration technologies available. The tap water in my area is relatively hard, so how should I choose the right water filter and avoid common mistakes?…

Yesterday, someone dropped into the livestream of ChengrongTimes, took a look at the price of our whole house water filtration systems, and left a comment: “Your prices to whole house water filters are ridiculously high. At this price, you might as well rob a bank.” He left the livestream right after posting this comment, leaving…

Yesterday, during our ChengrongTimes livestream, we received an unexpected comment. The viewer said that after checking out countless ultrafiltration full house water filter brands and livestreams online, other brands might offer lower prices, but ChengrongTimes was the only one confident enough to offer a five-year warranty on its ultrafiltration filter cartridges. This viewer clearly knows…

Why do we state 0.1 μm when others advertise 0.01 μm?Because accurate specifications matter more than impressive numbers. At ChengrongTimes, we never mislead our customers or take advantage of what they may not know. As a specialized ultrafiltration water filter manufacturer with a fully integrated supply chain, Chengrong Factory launched ChengrongTimes, our factory-direct brand for…

Last week, I came across a person online who shared her experience of choosing a whole house water filtration system. I strongly agree with one part of her approach. In order to purchase the best whole home water filtration system, knowing what the district water testing has found and how it’s getting to your house…

Many homeowners worry that installing a whole home water filtration system will significantly reduce their home’s water pressure. This concern is particularly obvious with whole house ultrafiltration water filter systems, where pressure drop is often cited as one of the main drawbacks. The reason is easy to understand. Ultrafiltration membranes typically have a pore size…

For many home owners, installing a whole house water filtration system can be a major challenge. Unlike regular household appliances that can simply be unpacked and used, a whole house water filtration system is a built-in home system that requires careful pipe planning and professional plumbing installation. An improper pipe layout may lead to unnecessary…

Last year, I created 154 videos about ultrafiltration water filters, explaining why ultrafiltration water filters are the best whole house water filtration system solutions for well water households, which are seeking to turn turbid well water into crystal-clear. Several of these videos were inspired by requests for help from people who contacted me online because…