Blog

Beyond Basics: How BWT Infinity & Multipur Outperform Conventional Sand Filters

/ 25 April 2025 / 0 Comments

When it comes to ensuring the best water quality for your home or building, settling for conventional sand filters may no longer be enough. While sand filters have long been used in residential and commercial systems, they often fall short in today’s world of increasing demands for efficiency, hygiene, and smart automation.

That’s where BWT’s Infinity and Multipur backwash filters come in — engineered with patented two-phase backwashing technology, and decades of expertise to offer unmatched protection and peace of mind.

Why Prefiltration Matters More Than Ever

Before water even reaches your tap, it often travels through kilometers of public piping. Along the way, it can pick up sand, rust, and other particles due to pipe corrosion, maintenance work, or seasonal shifts like flooding or heavy rain.

These impurities can:

  • Cause corrosion in your pipework

  • Reduce the lifespan of household appliances

  • Create ideal conditions for bacteria growth

Over time, these issues can damage household appliances, lead to costly repairs, and seriously affect your water quality.

BWT’s prefiltration systems serve as the first line of defense, capturing harmful particles at the source — ensuring that the water flowing into your home is clean, safe, and hygienic from the very first drop.

BWT Infinity A/AP: Designed for Modern Homes and Demanding Standards

Engineered with modern homes in mind, the Infinity A/AP automatic backwash filter delivers outstanding performance, hassle-free operation, and dependable durability for years to come.

Key Advantages

  • Automatic backwash: Self-cleans at adjustable intervals without interrupting water flow.

  • High-tech build: Made of materials used in high-tech industries. Features a brass head and impact-resistant transparent bowl.

  • Pressure stability: Optional pressure regulator prevents water hammer effects and maintains constant water pressure.

  • Smart features: LCD display, differential pressure monitoring (Infinity AP model), and remote-control options.

 

With its low water consumption and ability to operate efficiently during long time, Infinity A/AP offers a level of convenience and peace of mind that’s hard to match.

Perfect for: Households looking for water protection solutions with minimal maintenance and maximum smart control.

BWT Multipur AP: Engineered for Performance in Industrial and Building Applications

When water demand is high, the solution must be powerful and consistent. BWT Multipur AP filter is designed for large-scale applications — from commercial buildings to industrial sites — offering robust performance without compromise.

Key Advantages

  • High flow rate: Handles up to 170 m³/h

  • Faster cleaning: Patented suction ring backwash system is 12 times faster than conventional systems.

  • Smart integration: Fully automatic backwashing, controlled by time and differential pressure, with fault signaling for building systems.

 

With seamless integration into building management systems, Multipur AP ensures your operation never skips a beat — whether in a factory, apartment complex or office building.

Perfect for: Projects where performance, reliability, and system intelligence are not optional — but essential.

BWT Infinity & Multipur: A Clear Upgrade from Conventional Sand Filters

BWT’s Infinity and Multipur backwash filters go far beyond what conventional sand filters can offer. Instead of manual, inefficient cleaning, they feature automatic two-phase backwashing that maintains high filtration performance without interrupting water flow. Built with advanced, industry-grade materials and equipped with smart digital controls and alerts, these systems deliver superior hygiene, faster operation — up to 12 times quicker in the case of Multipur — and long-term reliability with minimal maintenance. 

 

What’s more, they offer a major advantage in space efficiency. Traditional sand filters often take up more than 1 meter in height and 1.3 meters in width, while BWT’s compact solutions require just a fraction of that space — as little as 63 cm tall and 30 cm wide. This makes installation easier and more flexible, especially in homes or buildings where space is at a premium.

💧 Ready to upgrade your water quality? Explore BWT Infinity & Multipur solutions today — and experience the difference in every drop.