Jasper County Democrat, Volume 2, Number 29, Rensselaer, Jasper County, 28 October 1899 — Water Filters. [ARTICLE]

Water Filters.

Persons who rely upon domestic filters to purify water for household use will be interested to learn that, on the authority of the state board of health of M^yland, ( such filters may steadily lose efficiency until they become first-rate culture beds for bacteria, savs the Sanitarian. An example cited is that in the case of a man in Baltimore who sends the whole water supply of his house through a large niter and subsequently puts his drinking Water through one of the small domestic filten common in the market. A test showed that on a day when the citv taps were rnnning 510 bacteria to the cubic centimeter the large filter was delivering 9,900 bacteria in the same quantity of water.