Borehole/Well Water Ultrafiltration Purifier

The quality Borehole/Well Water Ultrafiltration Purifier from VLLRO factory was born from a simple observation: overseas families need effective purification without water waste. After 20 years of designing water treatment systems for factories and homes, I saw that most imported RO systems were poorly suited for rural well water or areas with high water costs.

This unit integrates three essential functions into one compact chassis:

- Bag filter – removes sand, rust, and large particles

- Ultrafiltration (UF) membrane – 0.1‑micron deep purification, retains minerals

- UV sterilizer – 99.9% bacteria and microorganism elimination

The result? Zero wastewater, mineral‑rich drinking water, and fully automatic operation when paired with your existing water tank and pump (optional smart control system).

Real‑world case: A family in rural Kenya used to boil their well water for 30 minutes every day. After installing the Double Filter King , they now have instant, safe drinking water – no boiling, no waste, no electricity for filtration (UV uses minimal power).

Core Functional Features – Three Layers of Protection

Bag Filter – Primary Impurity Removal

The first stage is a reusable bag filter that acts as the first line of defense. It captures:

- Sand and sediment

- Rust flakes from old pipes

- Suspended solids

- Large organic debris

This coarse filtration protects your downstream pumps, pipes, and the UF membrane from clogging and wear. The filter bag is removable and washable – simply rinse it under a tap and reuse it. No expensive replacement cartridges.

Ultrafiltration (UF) Filter – Deep Purification with Mineral Retention

The core of the Borehole/Well Water Ultrafiltration Purifier is a high‑precision ultrafiltration membrane with a pore size of 0.1 microns (0.0001 mm) . It removes:

- Invisible fine particles

- Colloids and organic pollutants

- Most bacteria (larger than 0.1 micron)

- Turbidity

Unlike reverse osmosis, the UF membrane does not remove beneficial minerals such as calcium, magnesium, and potassium. Your water stays healthy and tastes natural – no flat, demineralized “dead water.”

UV Sterilization Lamp – 99.9% Bacteria & Insect Removal

The final stage is an industrial‑grade UV lamp that emits ultraviolet light at 254 nm – the optimal wavelength for destroying DNA of bacteria, viruses, and other microorganisms.

- Kill rate: 99.9% – including E. coli, coliform, and aquatic larvae

- Chemical‑free physical sterilization – no secondary pollution

- Lamp life: up to 8,000 hours (approximately 2‑3 years of normal use)

For well water that may contain bacteria from surface infiltration, the UV lamp provides peace of mind without any ongoing chemical cost.

Water Quality Comparison – Before vs. After Borehole/Well Water Ultrafiltration Purifier

This comparison shows why the Double Filter King is superior to RO for overseas well water. You get safety without waste, and health without demineralization.

Integrated Design – Small Footprint, Easy Installation

Traditional multi‑stage purification systems require separate housings for sediment filters, carbon filters, softeners, and RO membranes – taking up significant space under your sink or in your utility room.

The Borehole/Well Water Ultrafiltration Purifier integrates bag filter + UF membrane + UV lamp into a single, compact unit. It occupies far less space than conventional systems.

- Indoor or outdoor installation – protected enclosure, rated for humidity and temperature changes

- Flexible matching – works with existing household water tanks and pumps

- Optional smart control system – fully automatic water inlet, purification, and supply. No manual operation needed.

For overseas homes with limited space or outdoor pump houses, this is a game‑changer.

Low Maintenance & Reusable Filter System – No Expensive Consumables

Overseas users often struggle with high replacement part costs and difficulty finding technicians. The Double Filter King solves this with reusable core materials and ultra‑low long‑term costs.

- No expensive replacement cartridges – the bag filter is washable, the UF membrane is backwashable.

- No professional tools required – simple twist‑off housings.

- No frequent consumable purchases – typical annual cost is near zero except for electricity.

> A customer in the Philippines has been using the same UF membrane for 3 years. He flushes it once a month. The bag filter gets washed every 2 months. He has spent zero dollars on replacement filters – and his water still tests perfect.

Core Advantages Summary – Why Choose Double Filter King?

Let me summarize the key benefits that make the Double Filter King the best choice for overseas well water and tap water:

1. Zero wastewater – environmentally friendly, perfect for water‑scarce regions.

2. 3‑in‑1 purification – bag filter (coarse) + UF (deep) + UV (sterilization).

3. Mineral water retained – healthy, crisp taste – not flat like RO water.

4. Space‑saving design – compact footprint, optional automatic control.

5. Low maintenance – washable bag filter, backwashable UF membrane, long‑life UV lamp.

6. 20‑year professional support – designed by a factory with two decades of water treatment experience.

Important Notes for Installation & Daily Use

To ensure your Double Filter King performs optimally for years, please follow these guidelines:

1.Installation Environment

- Install in a ventilated, dry, frost‑free area.

- Avoid direct long‑term sunlight and rainwater soaking – this prevents plastic and electronic components from aging.

2.Regular Maintenance (Based on Your Water Quality)

- Clean the bag filter and flush the UF membrane regularly. If your water is very turbid (high sediment), flush more frequently.

- Heavy pollution (well water with high iron or clay) requires weekly backwash – otherwise, flow may drop.

3. UV Lamp Usage

- Do not disassemble or touch the UV lamp during operation – the lamp gets hot and UV light can harm your eyes.

- Replace the UV lamp when it reaches 8,000 hours of cumulative use (or sooner if the sterilization efficiency drops – test for bacteria).

4. Matching with Water Pump & Tank

- Match the pump and tank power to the unit‘s flow rating (consult our team if unsure).

- For automatic control system (optional), professional installation is recommended for wiring and debugging to avoid equipment failure.

5.Daily Inspection

- Regularly check pipeline connections for water leakage.

- If the equipment will not be used for a long time (e.g., vacation home), shut off the water source and power supply.

Ready to Upgrade Your Whole House Water?

Stop worrying about hidden bacteria or wasting hundreds of gallons of water every month. The Borehole/Well Water Ultrafiltration Purifier gives you safe, great‑tasting water – without the downsides of reverse osmosis.

Not sure which configuration fits your water source? Contact me with a photo of your current setup – I’ll recommend the best solution for free.

Customer case

In a certain community in the Middle East, to address the issue of excessive sediment in drinking water for 600 households, we installed three 10m³/h devices, which, in conjunction with the ultrafiltration system at the back end, provided clean water to the local residents. The pre-flush filter has been operating stably for two years without any faults and has been recognized by the local water department.

Service advantages

VLLRO offers free water quality testing services. Based on the test reports, it customizes exclusive treatment plans, provides equipment selection suggestions and overall water usage design solutions, and supports customers in visiting the factory to assess production capabilities.