Your complete reference for water leak detection terminology

This page is a technical reference where we gather the most important terms and concepts related to water leak detection and repair, in language that's simple yet precise. The goal is for you to understand "why" we use each technique or procedure, not just "what" it's called — because understanding the subject helps you make a better decision about your home, even if you never work with us.

Detection Technologies

Electronic Water Leak Inspection

A general term covering all methods of locating a leak using measurement equipment (thermal, acoustic, or gas-based) instead of random breaking or guessing. The goal is to pinpoint the problem to within a centimeter before any actual intervention. Read the full guide to these technologies ←

Thermal Camera (Thermal Imaging)

A device that captures temperature differences across a wall or floor surface. Leaking water changes the rate of heat transfer in that area, appearing as a color spot different from its dry surroundings. Very precise for detecting spread-out moisture, but less precise at pinpointing the actual leak point compared to acoustic sensing.

Acoustic Leak Sensing

Picks up the sound of water vibrating under pressure as it leaks inside pipes, even if they're buried or behind a thick wall. This technique is usually the most accurate for pinpointing the exact location of a leak, and is often used together with a thermal camera for cross-confirmation.

Tracer Gas

A safe, non-toxic gas pumped into the water line, which rises from the leak point up through the pores of the surrounding material (concrete or marble), where a gas detector picks it up at the surface. Used in difficult cases: very deep lines, or a noisy environment that makes it hard to hear the sound clearly.

Network Pressure Testing

Filling the network with water or compressed air and monitoring it for a period to confirm there's no pressure drop, usually before walls or floors are closed up during construction. An essential preventive step that catches installation defects early. Full details on this test ←

Non-Invasive Detection

The working philosophy behind all the technologies above: precisely identify the problem first through remote measurement, so that any actual breaking or digging is limited to the small repair point only, instead of randomly searching for the source.

Materials and the Network

PPR Pipes

Polypropylene random pipes, the most common choice in modern residential buildings in Saudi Arabia today — cheaper than copper, easier to install, and good resistance to chemical corrosion. Full comparison with other pipe types ←

Copper Pipes

Known for high durability and good heat resistance, but more expensive and may corrode over time under certain water conditions. Less common in modern projects compared to PPR, but still used in certain applications.

Ground and Elevated Tanks

The two main storage points of the home water network, and the most common leak source we deal with. The complete guide to tank leaks ←

The Buried Network

Supply lines running under floors or gardens, difficult to inspect visually since they aren't visible. Usually need acoustic sensing or tracer gas to pinpoint any leak in them. More details on inspecting the buried network ←

Waterproofing

A protective layer applied to roofs, tanks, and floors to prevent water from seeping into the structural layers beneath. Materials vary (bitumen, polymer, epoxy) depending on the surface type and use case. Types of waterproofing and their use cases ←

Drinking-Water-Certified Epoxy

A special type of epoxy designed to be safe on direct contact with drinking water — it doesn't react with it or change its taste or smell. Used exclusively for lining and repairing tanks, unlike ordinary coating materials used for roofs or floors.

Common Phenomena and Symptoms

Water Hammer

An audible "knocking" sound in pipes when a tap is closed suddenly, caused by a pressure wave rebounding inside the pipes. If it happens frequently, it stresses the fittings and speeds up the appearance of future leaks. Full explanation of the phenomenon and its solutions ←

Pressure Reducing Valve

A device installed on the main supply line to keep water pressure within safe limits, reducing network stress and limiting water hammer. When do you need to install one? ←

The Silent Leak

A very slow, inaudible leak that continues around the clock every day with no visible sign, but adds up to a large amount of waste over a single month. The hardest type of leak for homeowners to discover on their own without specialized equipment.

Visible vs. Hidden Leaks

A visible leak has a direct visual sign (a damp spot, a clear sound of running water), while a hidden one shows up only through an indirect result like a higher bill. How to check the difference yourself ←

Documentation and Warranty

The Certified Technical Report

A document that details the result of the electronic inspection: inspection date, leak location and type, and the technical recommendation. Suitable for submitting with a high-bill review request or for keeping in the property's maintenance file. What exactly does the report include? ←

The Technical Warranty

A written commitment to redo the same repair point free of charge if the same problem reappears within a specified period, at no extra cost to the customer. Warranty terms and limits ←

National Water Company Complaint

The official process for reviewing a high bill with the National Water Company, and it's always best to attach a documented technical report documenting the cause of the increase. The complete steps for filing the complaint ←

Prevention and Sustainability

Periodic Preventive Inspection

A comprehensive network inspection carried out proactively (usually every one to two years) even without an obvious complaint, to catch early weak points before they turn into a costly actual leak. Why is preventive inspection worth the cost? ←

Water Consumption Rationalization

A set of habits and measures (like fixing leaks immediately and using water-saving fixtures) aimed at reducing daily consumption without affecting quality of life. Fixing a single leak can have more impact than weeks of daily conservation habits. Saudi Arabia's Ministry of Environment, Water and Agriculture runs national water-rationalization programs, and fixing household leaks is a core part of that effort. Practical conservation habits ←

The Future: AI in Detection

AI Image Analysis

An emerging concept based on analyzing photos the customer takes themselves (a damp spot, a crack) to help with a preliminary assessment before the professional inspection. We're developing this direction as part of our future vision. Details on the idea and next steps ←