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Treatment of the water: Stability

Correction of pH
In order to increase it it is necessary to add a alkaline product to him: Carbonate of sodium or sodium Bicarbonate (it increases the alkalinity). In order to diminish it, an acid must be added: Hydrochlorate Acido, acid sodium salfumán or Sulphate (sódico Bisulphate)
Points important to consider:
Dosis, a título indicativo por 100 m3 de agua.To never add the water upon acid; the acid must be diluted in a great volume of agua.Evitar, coverall, the contact between hydrochlorate acid and the hipoclorito of sodium, since chlorine is given off gas. The addition of correctors takes place by means of connected dosificadoras pumps to the circuit of recirculation, after the filter.
Para bajar el pH hasta un valor próximo a 7,5 la dosis de ácido clorhídrico del 33% (salfumán) a añadir es según indica el cuadro siguiente:
pH 7,7 7,8 7,9 8,0 8,1 8,2 8,4 8,6
hydrochlorate acid in liters 1,1 1,5 1,8 2,0 2,4 3,0 4,2 5,4
These doses are used for a moderately tamponada water between 150 and 200 ppm of alkalinity. Against more elevated it is the alkalinity greatest have to be the doses; in this case he is recommendable to correct pH in two or three times. On the other hand if the alkalinity is smaller, the doses are had to reduce more.
Correction the alkalinity
It will increase if to bicarbonate or sódico carbonate is added and will diminish if sódico or acid bisulphate is added hydrochlorate.
Correction the hardness
It is increased adding calcic chloride and it is diminished replacing a part of the water of the swimming pool by less hard other
Correction of the mineralización
With the purpose of reducing the excess, a new part of water must be introduced. If the mineralización were very high, probably the water would have to drain and to change.
Incrustation
In front of a incrustante water it is not advised to use basic products or with calcium, he is preferable to use chlorine gas or cloroisocianúricos that have an acid action slightly. He is interesting to choose material smooth, since the incrustations are more difficult. Upon the sand filters it agrees to disincrust the filter mass regularly. In hard waters the ideal is a desmineralización.
Corrosion
With the purpose of avoiding the corrosion, it is necessary that the materials are stainless or prote'ge's with inatacables coatings.
Flocculation
In some occasions the water can lose the transparency with appearance of certain turbidity, this is because particles exist in water that by their size are not retained by the filtration. In these cases we will have to use the floculantes. These products are mainly aluminum salts (sulphates or policloruros) can be solid or liquid and its action consists of increasing the size of the particle so that they puden to be retained by the filter.
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