Jasper County Democrat, Volume 2, Number 24, Rensselaer, Jasper County, 23 September 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 Mqfyland, such filters may steadily lose efficiency until they become first-rate culture beds for bacteria, says the Sanitarian. An example cited is that in the case of a man m Baltimore who sends the whole water supply of his house through a large niter and subsequently puts his drinking water through one of the email domestic filters common in the market A test showed that on a day when the city taps were running 510 bacteria to the cubic centimeter the large filter was delivering 9,900 bacteria in the same quantity of water.