Installation for the preparation of a solution of Calcium Hydrogen carbonate, which comprises circular Communication (a) at least one Dosing Unit is provided with at least one input and at least one Exit, (b) a lot System comprising multiple x) a line of master batch pro Provided with at least one input and at least one Exit,The Line of master batch comprises circular Communication (i) at least one entry of dosage of gas, (ii) at least one mixing unit is provided with at least one input and at least one Exit, and (iii) at least one Tank provided with at least one input and at least one Exit,Xi) and at least one line batch Slave provided with at least one input and at least one Outlet, at least one line batch circular Communication Slave comprising (i) at least one entry of dosificacidn gas, (ii) at least one mixing unit is provided with at least one go And at least one Exit,And (iii) at least one proporcianado Tank with at least one input and at least one Exit, and (c) at least one Membrane Filtration Unit provided with at least one input and at least one exit; the installation and use ofINSTALACIÓN PARA LA PREPARACION DE UNA SOLUCIÓN DE CARBONATO ÁCIDO DE CALCIO, QUE COMPRENDE EN COMUNICACIÓN CIRCULAR A) AL MENOS UNA UNIDAD DE DOSIFICACION PROPORCIONADA CON AL MENOS UNA ENTRADA Y AL MENOS UNA SALIDA, B) UN SISTEMA DE LOTE MULTIPLE QUE COMPRENDE X) UNA LINEA DE LOTE MAESTRO PROPORCIONADA CON AL MENOS UNA ENTRADA Y AL MENOS UNA SALIDA, LA LINEA DE LOTE MAESTRO QUE COMPRENDE EN COMUNICACIÓN CIRCULAR i) AL MENOS UNA ENTRADA DE DOSIFICACIÓN DE GAS, ii) AL MENOS UNA UNIDAD DE MEZCLADO PROPORCIONADA CON AL MENOS UNA ENTRADA Y AL MENOS UNA SALIDA, Y iii) AL MENOS UN TANQUE PROPORCIONADO CON AL MENOS UNA ENTRADA Y AL MENOS UNA SALIDA, Y XI) AL MENOS UNA LINEA DE LOTE ESCLAVO PROPORCIONADA CON AL MENOS UNA ENTRADA Y AL MENOS UNA SALIDA, LA AL MENOS UNA LINEA DE LOTE ESCLAVO QUE COMPRENDE COMUNICACIÓN CIRCULAR i) AL MENOS UNA ENTRADA DE DOSIFICACIDN DE GAS, ii) AL MENOS UNA U