What is limescale in heating water?
All mineralized water (including tap water) contain limescale in the form of aragonite (softer and soluble limescale) which eventually turns into calcite (hard and compact limescale which encrusts and hardens inside the pipes).
This limescale will precipitate around the resistances of the boiler (which heats the water to +/- 55 ° C) which will decrease its energy efficiency and stay inside the sanitary pipes with the risk of clogging them!
In order to avoid these inconveniences, it is therefore advisable to treat this scale:
- Either by removing it (what a softener does by ion exchange by adding sodium to the water),
- Either by transforming its mineralogical structure in order to make it more soluble, which prevents it from becoming encrusted and promotes its evacuation by the swirling flow of water (which the Biodynamizer® does). limescale therefore remains in the water but it is less offensive.
Water hardness scale: Depending on the geological nature of the soil, the physico–chemical composition of the water will not be the same. Thus, water passing through a limescale soil or chalky soil will provide water with a high limescale content while water passing through rocky or sandy soils will be considered as soft:
- from 0 to 5 ° f: very soft water
- from 5 to 15 ° f: soft water
- from 15 to 25 ° f: medium hard water
- from 25 to 40 ° f: hard water
- > at 40 ° f: very hard water (plan in this case an adapted treatment of limestone !)
Pan test: restructuring of the limescale after boiling, comparison between tap water (left) and biodynamized water (right)
Dynamization will modify the structure of limescale in water
The Biodynamizer® treats limescale with the mechanical vortex & magnetic vortex by modifying its mineralogical structure (calcite -> aragonite -> vaterite) and the morphology of limescale crystals (their size increases).
The polarization of the water molecules induced by the magnetisation makes it possible to increase the coagulation of the limescale crystals (early germination) which reduces the drawbacks of limescale (which clings to the walls):
- The mass of scale remaining around the resistors and in the bottom of the boiler decreases (temperature at 55 ° C, 130L / day)
- The adhesion of limescale inside the sanitary pipes decreases
This is done in the Biodynamizer® thanks to:
- The combination of a fast-turbulent flow and a strong magnetic field who amplify the efficiency of the magnetic treatment of limescale. The magnetic force potential will be proportional to the velocity of the flow inside the vortex.
- The alternating strength and orientation of magnetization (N / S-S / N) as well as the magnetization of the copper tubes increases the magnetic gradients (= the density of the lines of magnetic fields) and also improves the efficiency of the treatment of limescale.
The disadvantages of a water softener
- Does not filter pollutants in the water
- Altered taste of water (salt taste due to sodium)
- Removes much of the precious minerals (containing trace elements)
- Does not provide a limescale protective layer on the inner surface of the pipes which protects against corrosion of galvanized pipes (if set to ≤ 5 ° f)
- Adds sodium to the water (Na + = +/- 60% of the salt composition; = +/- 140 mg / L for a reduction in hardness from 30 ° f to 5 ° f; recommendations for sodium consumption for humans: max 200 mg / L (according to European directive on drinking water 98/83) because sodium increases blood pressure (bad for people with heart or kidney problems)
- Its operation uses +/- 100 Kg / year of salt (Sodium Chloride: Na + Cl-) for its regeneration; this produces chlorine dioxide (salt + chlorine from city water) which is released into the water which corrodes the galvanized pipes!
- Releases brine (limescale + chlorite) to the environment (via sewers)
- Discards a lot of water for regeneration (100 L of water per regeneration which takes place every 5 days!)
- There is a risk of development of bacteria & germs in the ion exchange chemical resins if there is no regular maintenance (after 5 years of operation: An annual maintenance is compulsory in order to disinfect the resins! Otherwise there is a risk of bacteriological contamination of the water by microorganisms!).
Maintenance of the most common household appliances
- For the iron, use distilled water from the clothes dryer to prevent it from getting clogged (standard procedure),
- For taps, wipe a cloth (if necessary, with white vinegar) every 15-30 days at the outlet of your taps (this is a standard maintenance).
- For shower heads, soak them every 6 months in white vinegar (this is standard maintenance).
- For kettles or coffee machines, do not allow the water to boil at 100 ° C (60-70 ° C is clearly sufficient), because water vapor tends to precipitate limescale. Renew the water for each boil + regularly clean the bottom of the container with white vinegar to descale it. This is a standard maintenance depending on the interior coating of the devices,
- Regarding the dishwasher, standard maintenance: rinse aid, dishwasher tablets for the shine of glasses, regenerating salt in the dishwasher, regular cleaning of the dishwasher filter; in case of very hard water, use crystallized citric acid (in combination with the tablets).
- For shower screens (normal cleaning),
- Water decanters, clean the bottom with white vinegar or citric acid in water,
- For the washing machine you can continue to use fabric softener (but it will be less necessary).