You spent 3000 yuan on a well water filtration system, and after six months the water is still yellow—it's not necessarily because your equipment is bad, it's because the filter media simply doesn't meet standards.
We at DIEN Water Treatment have seen too many customers like this: A farming family in Huyi District, Xi'an, bought a certain brand of "fully automatic well water filtration system." After three months, the filter media hardened, and the iron content in the effluent soared to 1.8 mg/L, higher than the raw water. They thought the well water had deteriorated, but it was actually inferior manganese sand with an MnO₂ content of less than 15%, which is completely incapable of catalyzing the oxidation of ferrous iron.
Well Water Filtration Equipment
Don't believe the nonsense that "all filter media are the same." High-quality manganese sand must have an MnO₂ content of ≥35%, a particle size of 0.6–2.0 mm, and retain its activity after backwashing. We use natural manganese sand directly sourced from the Yulin mining area in Shaanxi, and each batch's test report is accompanied by the shipment. Quartz sand: SiO₂ must be ≥99.5%, and the iron content of impurities must be reduced to below 0.005%. Ordinary sand will perforate after one year, while our refined sand can last for five years without replacement, tripling its interception capacity.
Fully automatic valve heads are not something that can be easily made of plastic shells and last three years. The Fleck 7000 series boasts 1 million on/off cycles without failure, and this is standard across our entire series. Tanks? Painted carbon steel will rust through in two years; we use 316L stainless steel with a food-grade epoxy lining, offering corrosion resistance for at least 15 years. The little money you save will ultimately be spent on replacing filter media, repairing leaks, and hiring people to dredge.
Do you think a low price for well water filtration equipment means you're making a profit? We've seen customers replace their equipment five times in three years, spending 20.000 yuan, and the water quality still doesn't meet standards. The real cost is time, health, and the patience for repeated maintenance.
Underground Well Water Filtration Equipment
We don't make "universal" models. The iron content in rural well water in Xi'an ranges from 0.5–2.8 mg/L, manganese from 0.1–0.6 mg/L, and hardness from 350–520 mg/L, varying from well to well. We take samples first, then customize our solutions—iron and manganese removal, multi-media filtration, resin softening, ultrafiltration, nanofiltration, reverse osmosis, and EDI ultrapure water—all products manufactured in-house, without outsourcing.
You're not just buying equipment; you're buying a water purification system that will last ten years. Stop asking about the price of well water filtration equipment; look at the configuration first. We'll send you a free copy of our 2026 Well Water Filtration Equipment Manufacturer Selection Guide, including a local Xi'an water quality adaptation plan. Call DIEN Water Treatment now and tell them you came from this article—we'll arrange a free water quality test, provide a filter media replacement reminder service, a one-year warranty, and 24-hour after-sales support. Don't wait until the water turns yellow to call us.
