Dear Mr. Mehzard,Rain water ...

Dear Mr. Mehzard,

Rain water falling from sky is having zero soluble solids. It may have the dissolved gases like Carbon dioxide and oxygen in unpolluted environment.  Rain water can be collected during rainy season from roof top or in a tank under the open sky. The surface run off will have the solids contributed from the soil & surrounding environment.

The rain water collected from rooftop & open sky can after the first heavy rains turbidity less than 5 NTU & it doesn’t have suspended solids. It can be stored in Copper vessel overnight and use directly for cooking. Copper acts as disinfectant.

Rain water is devoid of dissolved solids therefore soluble salts of Calcium and Magnesium may be added to adjust hardness to 50 mg/l. This can be made simple by preparing the solution and asking to add drop wise. The water can bed then stored in copper vessel and use for drinking.

This recommendation is valid only for rain water collected in unpolluted area.

We have developed a system for Residential complex to use rain water directly during rainy season. Please contact on rvsveipl@gmail.com for more details.

Prof. Rajendrakumar V Saraf