. Public works . ed fromthree or four outlet pipes along each side. The sewagedescended so rapidly into the filtering material at thesepoints that they became more or less clogged, whileother parts of the filter are out of use. An essentialfeature of sewage filtration is uniform distribution. Thiswas accomplished by laying distributing troughs acrossthe filters from each outlet pipe. There are openings inthe sides of the troughs. Tarred wooden troughs, an-chored down by iron straps buried in the beds, are change of flow from one fine grain filter to anotheris done by hand. Although th
. Public works . ed fromthree or four outlet pipes along each side. The sewagedescended so rapidly into the filtering material at thesepoints that they became more or less clogged, whileother parts of the filter are out of use. An essentialfeature of sewage filtration is uniform distribution. Thiswas accomplished by laying distributing troughs acrossthe filters from each outlet pipe. There are openings inthe sides of the troughs. Tarred wooden troughs, an-chored down by iron straps buried in the beds, are change of flow from one fine grain filter to anotheris done by hand. Although there has been an average of 1,000 feet ofsewer laid per year since the above repairs were made,the system is working perfectly and has given littletrouble since the changes were made. Of late, though,there has been a deposition of the sand in the septictanks and plans are now being prepared for the con-struction of a grit basin at a point just above the septictank. The estimated cost of the grit chamber is $1, FIXE GRAIN BED. DRAINING. No figures are at hand in regard to the cost of theoriginal plant, but there are approximate figures of thecost of the repairs made in 1908. Repairing main sewer $2,500 Repair of lateral sewers, manholes, etc 500 Alterations at septic tanks 50 Cleaning tanks and care of sewage 150 Removing cinders from coarse grain 1,000 Filling with broken stone 2,000 Automatic control 1,200 Masonry changes 500 Troughs and equipment 200 Total $8,100 COMPULSORY SEWAGE PURIFICATION INNEW JERSEY. In October, 1906, the State Sewerage Commission ofNew Jersey directed the town of Phillipsburg to ceasepolluting the Delaware River with sewage, allowing ittwelve months to install the plant necessary for the town took no action on this notice, the StateBoard of Health (to which in 1908 was transferred thejurisdiction over these matters) appealed to the Courtof Chancer) for a mandatory injunction compelling it totreat its sewage. Decision in this sui
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