2. Measure and adjust pH and Chlorine
To guarantee clean and safe water, the Ferrosalt Duo automatically regulates the pH (acidity) of the water between 7.2-7.6 and the chlorine content between 0.5 and 1.5 ppm
The pH is measured continuously with a pH probe.
Chlorine is measured by a Redox probe for salt electrolysis. In general, a Redox of 700mV corresponds to 1 ppm of chlorine. The redox sensor is covered with a protective layer of gold.
If the pH is too high, the system will automatically dose acid to correct the pH via a peristaltic pump. For a swimming pool of 50 m³ you need +- 15 to 30 cl 15% sulfuric acid (= one glass) per day.
To adjust the chlorine, the salt electrolysis will automatically produce chlorine (or bleach) via a salt electrolysis cell. For a swimming pool of 50 m³, you need a salt electrolysis device that produces at least 15 g of chlorine per hour.
For a salt electrolysis to work, it is necessary to add salt to the pool beforehand. This salt is then converted into chlorine by the electrolysis cell. After reaction of the chlorine with algae, bacteria ... the chlorine is converted back to salt.
3. Plug & Play - water treatment installation
Both the Ferrosalt Duo
and the Ferrosalt Duo Wifi
are fully pre-assembled on a plate. All connections and pipes have already been made, so no need to assemble anything yourself. Simply connect the panel to the return pipe to the pool in a 50mm pipe. This can be done via the supplied 50mm rubber sleeves. A bypass is not required.
All accessories for installation and use (probes, calibration fluid, manual ...) are included. The normal operating conditions (pH 7.2-7.6, Redox > 700mV) are already pre-programmed in the device.
Important note for UK and Ireland customers
A suitable 50mm to 1-1/2 inch adapter will be provided upon delivery without extra charge