FILTRATION AT LUDLOW.
A Ludlow. Mass., correspondent writes on July 7 as follows: “The water was turned on to one of the filter beds at the reservoir for the first time yesterday, and for the rest of the summer, barring accidents, the water will all be filtered, which flows into the city mains. The first trial was a success, although the water did not cover the entire area of the bed, as might have been desired. In just nineteen minutes after the water had been turned on to the bed, it had filtered through and was running out of the main drain into the basin. Its quality was very good. There is about two days’ supply in the basin, and, as soon as this is drawn down, the supply will be unmixed filtered water.”