"Effluent" Quotes from Famous Books
 ... relieve the situation at such times, the expedient of raking was tried. This was first attempted with the filters filled with water; the effluent was first shut off in order to prevent a downward flow of water, and the filter was then raked or harrowed from boats. This method was not satisfactory, however, as the work was neither as uniform nor as thorough as necessary. Later, the filters were drained to the necessary depth, ...
— Transactions of the American Society of Civil Engineers, vol. LXXII, June, 1911 • E. D. Hardy |
