Green building

Advanced water treatment in line with green-building requirements

Recommended by leading consultants

No chemicals or ongoing maintenance

Installing HydroFLOW systems earns credits under the Israeli green-building standard (SI 5281), and is listed in the Ministry of Environmental Protection’s Technical Guide as a recommended limescale-treatment solution — no pipe modification or cutting, no ongoing maintenance.

Green-building consultation How it works

SI 5281 credit points No chemicals or ongoing maintenance Ministry of Health approved

International green-label certification Full support from planning to execution Can be installed at any project stage

What is limescale and why is it harmful?

The economic cost of hard water in Israel

Water in Israel contains high levels of calcium and magnesium. Calcium in the water itself has no harmful effect on people, but the limescale layer that builds up on heating elements and inside pipework causes significant economic and operational damage.

Loss of heating efficiency

A limescale layer of just 2mm causes an efficiency loss of about 20% in industrial water heaters and cooling towers, according to the Solar Impulse Foundation.

✓ With HydroFLOWKeeping surfaces free of limescale contributes to high energy efficiency over time.

Increased building energy consumption

As limescale accumulates, heating systems are forced to consume more energy for the same heat output — a cost passed on to all residents.

✓ With HydroFLOWDirect savings in the energy consumption of central heating systems.

Active treatment even when water isn’t flowing

HydroFLOW operates through an electrical signal alone — with no moving parts and no dependency on flow. Treatment continues even in standing water and in lines that aren’t in frequent use, with no additional energy consumption.

✓ With HydroFLOWAn energy-efficient technology that adds no operational load to the building’s systems.

The energy chapter of the SI 5281 standard is the most heavily weighted — over a third of the score — and also assesses the building’s water-heating means.

Limescale as a hiding place for Legionella

A limescale layer in pipework and water heaters doesn’t just harm efficiency — it also creates a physical shelter for biofilm and bacteria such as Legionella, protecting them from standard disinfectants. The problem is especially pronounced in multi-storey residential buildings, with long hot-water lines, some rarely used.

✓ With HydroFLOWPipe surfaces kept cleaner of limescale and biofilm help reduce the physical shelter available to bacteria, allowing disinfectants to work more effectively.

Green building in Israel

HydroFLOW Systems in Israeli Green Building

HydroFLOW systems appear in leading professional databases and platforms in the Israeli green-building sector, providing consultants, planners, developers and professionals with information on the technology and its applications in green-building projects.

Green Building Council of Israel Consultants Association

HydroFLOW appears on the association’s website as part of its database of green-building solutions and technologies.

View on the association’s website →

Israel Green Building Council

HydroFLOW appears on the website of the Israel Green Building Council, which promotes environmental, quality and sustainable construction in Israel.

View on the Council’s website →

SID – Green Building Products and Solutions Database

HydroFLOW systems appear in the SID database, a central source of professional information on products, technologies and solutions for the construction and planning industry.

View on the SID website →

Ministry of Environmental Protection

HydroFLOW appears in the Ministry of Environmental Protection’s Technical Guide.

View the Technical Guide →

System benefits

Criterion	Traditional methods	HydroFLOW system
Infrastructure change	Usually requires cutting or modifying pipework	No pipe modification or cutting
Maintenance	Ongoing addition of materials and component replacement	No ongoing maintenance or component replacement
Contact with water	Alters water composition through direct contact	No direct contact with the water
Project installation stage	Limited to early planning stages	Can be installed at any stage, including in existing buildings
Control	No online control or indication system	Smart online control systems

Standards and professional recognition

International recognition for environmental technology

The GreenPro green-label standard

The HydroFLOW system carries the GreenPro green label, awarded by a body holding Full Member status in the international Global Ecolabelling Network (GEN).

The label is classified as a Type 1 Ecolabel under the international ISO 14024 standard, certifying compliance with strict environmental criteria and recognised international standards.

The Efficient Solution label from the Solar Impulse Foundation

HydroFLOW products were awarded the Efficient Solution label from the Solar Impulse Foundation — an international initiative founded by explorer and environmental thinker Bertrand Piccard, aimed at promoting solutions that combine environmental efficiency with economic viability.

Solutions awarded the label undergo a professional, independent review process, assessing their contribution to environmental protection alongside their economic feasibility. This recognition joins Hydropath’s other international certifications, and reflects a commitment that has continued since the company’s founding.

HydroFLOW products were selected for their contribution in three key areas:

✓

Reduced water consumption

More efficient water treatment supports smarter management of water systems.

✓

Reduced energy consumption

Reducing limescale build-up helps maintain heat-transfer efficiency and cut energy waste.

✓

Reduced chemical use

A physical treatment technology that requires no ongoing chemical additives.

Read the full article on the Hydropath website →

Management and control

One device. One platform. Full transparency.

HydroKNCT and Hydropath Care are designed to work together as a single connected monitoring solution for every HydroFLOW installation across your network.

↑

Real-time signal performance data from every unit

↑

24/7 temperature and power monitoring

↑

Instant alerts when readings change

↑

Central dashboard for all sites

↑

Full logging and trend transparency

Control systems details ←

Complementary systems

Water leak detection and monitoring systems

Alongside its limescale-treatment solution, HydroFLOW Israel also distributes water leak detection and monitoring systems developed for the local market. Their installation forms part of the Israeli green-building standard (SI 5281), earning additional credits.

•

Main leak-detection and monitoring system

Monitors the building’s main pipework and alerts to leaks in real time.

•

Local water controller

Per-apartment or per-floor leak detection, preventing localised water damage.

Clients

Among our clients

FAQ

Your questions answered

What credits does the system earn under SI 5281?

Installing HydroFLOW systems earns credits under the Israeli green-building standard (SI 5281), and is recommended by leading plumbing consultants from the earliest planning stages of a project.

Can it be installed in an existing building, not only a new project?

Yes. The system is installed externally to the existing pipework and can be installed at any stage of a project, including in existing buildings, with no need to modify or cut the pipe.

Who recommends the system besides the Ministry of Environmental Protection?

The system was selected by the Solar Impulse Foundation as one of the 1,000 best sustainability solutions in the world, following validation by an independent expert panel, and is recognised by all green-building certification bodies in Israel. HydroFLOW systems are recommended by leading plumbing and green-building consultants across the country.

Is any pipework modification required?

HydroFLOW systems are installed externally to the pipework, with no need to modify or cut the pipe.

At what stage of the project can the system be installed?

HydroFLOW systems can be installed at any stage of a project — even at the very end!