References

Installed, measured, documented.

One real case per sector, with the equipment that went in, what was measured and who stands behind it. The TAVIL case includes independent laboratory analysis and its full report as a PDF.

Independent laboratory analysis

Iron, out of the BlueBox circuit.

TAVILGironaDS-i65 · DN652025

DS-i65 fitted on TAVIL's BlueBox circuit

Iron · μg/L: 1.148 → <50Iron · μg/L
Langelier index: +0,20 → 0,00Langelier index
Hardness · mg/L CaCO₃: 80 → 79Hardness · mg/L CaCO₃

Problem
The first check on the closed BlueBox circuit showed a high iron load: 1,148 μg/L, against under 50 μg/L in the make-up water. The Langelier index was +0.20, consistent with a slight scaling tendency.
Action
Technical survey of the circuit and installation of a DS-i65 on DN65, 316L stainless steel body. Physical treatment: no cartridges, no consumables and no chemical dosing in the unit. Two analytical checks, on 27/02/2025 and 07/04/2025.
Result
In 39 days iron falls from 1,148 μg/L to under 50 μg/L and the Langelier index returns to 0.00. Circuit hardness holds almost unchanged, from 80 to 79 mg/L CaCO₃: the water is not demineralised.

Download the full report (PDF)

Result reported by the client

The milking robots, free of limescale.

Ganadería ItzibarZizurkil, GipuzkoaEF-i2024

EF-i anti-limescale unit fitted on the Itzibar dairy farm circuit

Daily intake per cow: 100–120 LDaily intake per cow

Problem
The farm was accumulating limescale in the milking water and in the system's cleaning water. The screen on the GEA robot arm fogged up and became covered in deposits.
Action
An EF-i anti-limescale system was fitted on the farm's circuit.
Result
Limescale residue fell and the screens and solenoid valves on the GEA robots stay clean. The cows behaved better at the drinker, with a steady intake of 100 to 120 litres a day.

Result reported by the client

The kitchen and the irrigation, on the same water.

Hotel B&B Colmar LibertéColmarEF-i50 + EF-i252023

Problem
A high-turnover hotel, with limescale in the kitchen water and in the automatic irrigation of the grounds.
Action
In February 2023 an EF-i50 was fitted to treat the hotel's limescale, plus an EF-i25 dedicated to the automatic irrigation.
Result
The team quickly noticed that kitchen equipment and utensils clean far more easily.

Result reported by the client

30 % more flow, without touching the pipework.

Woonpunt ZennevalleiHalleEF-i2025

Anti-limescale unit fitted on the pipework of a Woonpunt Zennevallei building

Kitchen tap · l/min: 3,7 → 5,1Kitchen tap · l/min
Bathroom tap · l/min: 4,8 → 7,0Bathroom tap · l/min
Flow rate: +30 %Flow rate

Problem
The social housing association was suffering severe scaling: blocked taps, frequent water-heater breakdowns and damage to heat exchangers. Before the work, 3.7 l/min was measured at the kitchen tap and 4.8 l/min at the bathroom tap.
Action
On 17 January 2025 an anti-limescale system was fitted on pipework already congested by limescale build-up. No building work and no pipe replacement.
Result
At the measurement on 28 February 2025 the kitchen tap gave 5.1 l/min and the bathroom tap 7.0 l/min: around 30 % more flow, from the curative effect of the unit on the existing scale.

Result reported by the client

Two identical circuits, one treated.

Acuario del Museo de BesançonBesançonEF-i20 · DN202015

Plant room of the Besançon Museum aquarium

Months of side-by-side testing: 10Months of side-by-side testing

Problem
The aquarium's tanks, pumps, PVC pipework, chillers and filters were scaling up. Long cleaning sessions, equipment replaced several times a year and the use of hazardous chemicals.
Action
In July an EF-i20 was fitted on tank DR1. A second tank running equivalently, DR2, was left untreated as a control. Every monthly filter clean was logged for ten months.
Result
DR1's pipework cleaned off with a simple wipe; DR2's, heavily scaled, only gave way to acid. DR1's pump showed almost no limescale inside or out; DR2's was completely covered.

Result reported by the client

Three heat exchangers in a few years. Then none.

Vivienda particularGardEF-i20 · DN202019

Tap aerator with the limescale already loosened after installation

Days to the first result: 21Days to the first result

Problem
The gas boiler's plate heat exchanger had been replaced three times in a few years. The shower tap had to be stripped and descaled after six months' use, and the aerators were being cleaned every week.
Action
An EF-i20 anti-limescale unit was fitted on DN20, in 2019.
Result
After 21 days (13 of them in actual use) the aerators were free of limescale, flow had improved and the chlorine smell had gone. In 2021, the unit fitted in 2019 was still fully effective.

Results relate to the installations and samples described in each case. The TAVIL report is based on analyses W00926360-0, W00926361-0 and W00554062-0, issued on 05/05/2025 by an independent laboratory. The remaining cases collect results reported by clients and installers.

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