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English[en]
The reasons for using well screens, as a replacement for slotted tubes, are many. However, the main argument is that well screens, at least theoretically, allow the construction of more efficient wells with higher flow rates, because open area through which water flows into the well is larger, so, speed of water entering the well is lower, and, consequently, resulting head loss is smaller.
Spanish[es]
Las razones para emplear rejillas en vez de tubos ranurados son varias, pero la principal es que las rejillas posibilitan, al menos teóricamente, construir pozos más eficientes y de mayor caudal, pues al ser mayor el área de entrada de agua al pozo, la velocidad de ingreso es menor y, consecuentemente, menores son las pérdidas de carga por este concepto, que no es el único a considerar.

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