What Whole-House Water Filter Should a Three-Story Self-Built Rural House Use? A Whole-House Water Filtration Case for 8 Households and 24 People Using Deep Well Water
A few days ago, a customer contacted us and asked: For a three-story self-built house in a rural area, using deep well water, shared by 8 households and 24 people in total, what model of whole-house water filter should they buy?
The whole-house water filtration needs of a rural self-built house are different from those of an ordinary household. Especially when using deep well water, with multiple households sharing the water source and high water consumption, choosing a whole-house water filter requires consideration not only of filtration performance, but also of the water supply method, number of users, instantaneous flow rate, equipment specifications, and subsequent maintenance costs.
Why Do We Recommend a Hand-Wash Whole-House Water Filter for Rural Self-Built Houses?
For rural self-built houses, especially households using well water, deep well water, or village collective water supply, we usually recommend a hand-wash whole-house water filter first.
The hand-wash whole-house water filter is installed on the household’s main incoming water pipe and serves as the first filtration barrier for whole-house water filtration, mainly intercepting particles such as sediment and mud in the water.
After installing a whole-house water filter, it can reduce the amount of sediment and other large particles entering household pipes and water-using appliances, making the water from household faucets clearer and reducing water turbidity.
For rural households, a whole-house water filter also has a very direct function: protecting washing machines, water heaters, and other water-related appliances, reducing the impact caused by sediment and other particles entering the equipment over the long term.
At the same time, using clearer water to wash clothes can reduce the attachment of sediment and other impurities to clothing, avoiding obvious yellowing and graying caused by turbid water.
Therefore, the core function of a rural whole-house water filter is not simply to “filter drinking water,” but to start filtration from the household’s main incoming water pipe and provide front-end filtration for the entire household water system.
When Buying a Whole-House Water Filter, the First Question Must Be: Is There a Water Tank?
When purchasing a whole-house water filter, many customers only tell us “how many people are in the house,” but this is not enough to determine the whole-house water filter model.
When selecting a whole-house water filter in actual applications, the first question we ask the customer is:
Is there a water tank at home?
The reason is simple: with and without a water tank, the household water supply methods are different, and the calculation method for selecting the whole-house water filter specifications is also different.
This customer told us that their village has a shared water tank, which supplies water to every household in the village.
Under normal circumstances, there is no major problem with household water use. However, once the village experiences a water outage or the water supply system changes, the water coming from the household faucets may become noticeably turbid when the water supply resumes.
Therefore, the customer’s purpose in purchasing a whole-house water filter was very clear:
They were not looking for complicated drinking-water functions, but wanted to improve the water quality at the household main inlet and solve the problem of water turbidity caused by sediment, mud, and other particles.
For 8 Households and 24 People, What Size Whole-House Water Filter Is Needed?
The customer’s biggest concern was: With 8 households and 24 people sharing the water supply, what size whole-house water filter should they choose?
To allow the customer to obtain a better whole-house water experience at a relatively low economic cost, based on my 19 years of industry experience, I summarized my own calculation method for selecting whole-house water filter specifications—the Chengrong Formula.
Based on the information provided by the customer, including:
- Three-story rural self-built house
- Deep well water
- Shared village water tank
- 8 households
- 24 people in total
- Household main incoming water supply
- Sediment, mud, and other particles in the water
We finally recommended the following solution:
At least 2 units of the largest-specification 168-10000A whole-house water filter, connected in parallel.
For scenarios involving multiple people and multiple households sharing the same water source, the selection of a whole-house water filter cannot simply be calculated as “one unit for one household.” It needs to be matched according to the actual water supply method and water consumption requirements.
This is also why, when recommending a whole-house water filter model, we do not only look at the equipment price. We first understand the customer’s household water supply system and then determine the appropriate whole-house water filter specifications.
There Is Sediment in the Deep Well Water. Why Add a 40-Mesh Stainless Steel Pre-Filter Before the Whole-House Water Filter?
In addition to the whole-house water filter specification issue, this customer had another obvious practical problem: there was sediment in the water.
Therefore, we did not simply let the ultrafiltration whole-house water filter handle all the filtration pressure. Instead, we recommended adding a 40-mesh stainless steel pre-filter in front of our ultrafiltration whole-house water filter.
Its function is very clear:
First intercept large particles of sediment in the water, and then allow the water to enter the ultrafiltration whole-house water filter.
This can reduce the filtration pressure placed on the downstream ultrafiltration membrane and prevent large particles from damaging the ultrafiltration membrane.
Therefore, for deep well water whole-house water filtration, when the raw water contains a relatively high amount of sediment, the solution is not simply to make the ultrafiltration water filter larger and larger. Instead, a graded filtration method of “front-end coarse filtration + downstream ultrafiltration” should be used.
Customer: “I’ve Never Seen Such an Expensive Ultrafiltration Whole-House Water Filter.”
After we explained the solution and model to the customer, the customer’s first reaction was:
“I’ve never seen such an expensive ultrafiltration water filter.”
I told the customer that ChengrongTimes whole-house water filters first adhere to one principle: all parameters are genuine and never exaggerated.
The whole-house water filter selection formula we provide to customers is also based on 19 years of actual industry experience, rather than simply trying to sell customers a larger piece of equipment.
For an 8-household, 24-person shared whole-house water filtration system, if the equipment is deliberately undersized to reduce the purchase price, the equipment may operate under high loads for a long time, ultimately affecting the customer’s own water-use experience.
In addition, we use a backwashing + hand-washing maintenance method, which is also one of the innovative designs of ChengrongTimes whole-house water filters.
For the core filtration component, we use an ultrafiltration membrane independently developed and produced by Chengrong’s own factory. At the same time, our ultrafiltration membranes are also used by multiple leading global brands.
This is why we have the confidence to put the core parameters, filtration performance, and filter service life directly in front of customers.
Why Can the Whole-House Water Filter Filter Be Guaranteed for 5 Years?
For a whole-house water filter, customers should not only focus on whether it can filter water effectively right after installation, but should also pay attention to how long the filter can be used, whether subsequent maintenance is convenient, and whether the manufacturer is willing to take long-term responsibility for product quality.
ChengrongTimes has achieved a 5-year warranty level for filter service life.
For customers, this means that when purchasing a whole-house water filter, they do not need to focus only on the equipment price. They should consider the equipment service life, maintenance method, filter life, and long-term operating costs as a whole.
Especially for this customer, the situation was unique—8 households were sharing the same whole-house water filtration system.
I also told the customer directly:
“You are 8 households sharing it. Isn’t it reasonable for it to cost a little more?”
The customer said, “I need to think about it.”
To be honest, I thought “I need to think about it” meant a polite rejection.
Unexpectedly, the customer actually placed the order the next day.
Why Did the Customer Finally Purchase Two 168-10000A Units?
The next day, the customer directly confirmed the purchase of:
2 hand-wash whole-house main-inlet microfiltration water filters.
The customer later told me that he had done the calculation:
“When the price is divided by 8, it actually isn’t expensive.”
More importantly, in his understanding, there are many products on the market, but not many products are truly willing to provide a 5-year warranty for the filter.
So the customer’s final decision was very straightforward:
“Either I don’t buy one, or if I buy one, I will buy a better one.”
This is also a very typical whole-house water filter selection case for rural households.
For an ordinary household, a whole-house water filter may simply improve the water-use experience of one family. But for 8 households and 24 people sharing the same water source, the whole-house water filter is actually responsible for the front-end filtration of the entire household water supply system.
Therefore, in this situation, choosing the right whole-house water filter model is more important than simply pursuing the lowest price.
When Customers Choose ChengrongTimes, We Must Be Responsible for the Results
After the customer confirmed the purchase, we immediately arranged shipment and assigned colleagues to follow up on the installation.
To allow customers to truly enjoy the benefits of an ultrafiltration whole-house water filter, we provide installation included for domestic customers.
We have always adhered to one principle:
Do not let customers incur unnecessary secondary consumption after purchasing a water filter.
From selecting the whole-house water filter model, to configuring the front-end 40-mesh stainless steel pre-filter, to installing and maintaining the ultrafiltration whole-house water filter, we hope that customers purchase not just a piece of equipment, but a truly suitable whole-house water filtration solution based on their household water supply conditions.
Chengrong Ultrafiltration, Customers Have No Concerns
No rust for 10 years
No water leakage for 10 years
After-sales service for 10 years
ChengrongTimes® Water Filter never forgives itself when it comes to quality.
For rural whole-house water filters, deep well water filters, ultrafiltration whole-house water filters, and whole-house main-inlet water filters, the equipment itself is only one part of the solution.
What truly determines the user’s experience is whether the raw water conditions, water supply method, number of household members, instantaneous water consumption, equipment specifications, filtration structure, and after-sales service can truly match each other.
This is also the real value that ChengrongTimes’ 19 years of experience can provide to customers.
Shenzhen Chengrong: 18 Years of Full-Supply-Chain Ultrafiltration Manufacturing
Shenzhen Chengrong is among the top three in the pipeline ultrafiltration industry, one of the few full-supply-chain ultrafiltration factories in the industry, and an ODM/OEM factory behind multiple leading global brands.
From R&D and production to product applications, we have been deeply focused on the pipeline ultrafiltration field for many years.
After quietly accumulating experience for 18 years, ChengrongTimes® was officially introduced in mid-2025.
We do not simply manufacture a whole-house water filter. Instead, we continuously build comprehensive product capabilities covering ultrafiltration membranes, filtration structures, equipment manufacturing, product parameters, and after-sales service.
Quality more reliable than an insurance company, service more customer-focused than the customer.
This is the confidence behind ChengrongTimes® whole-house water filters.
