=A Work-table= about three feet high. This should be built against the wall and strongly braced, as shown in the sketch (Fig. 169). Fasten a shelf to the wall about nine inches below the table, and under this make a rack with three divisions in it for trays. The rack should be fastened to the braces, as shown in the drawing.
=Running Water= is a great convenience in a dark-room, as it saves the bother of having to carry water in pails, or transferring your plates to a tub or wash-basin for the final bath after development.
If it is impossible to locate your dark-room where it will be supplied with running water, the best scheme is
=A Water-tank= with hose attachment. This is shown in Fig. 169. To carry it out, procure from your grocer a "half-barrel," such as is used for the shipment of salt mackerel, etc., and, after thoroughly cleaning it, bore a hole in the side about two inches from the bottom. Buy at a drug-store several feet of rubber tubing, a rubber stopper with a hole cut in the centre, two pinch-stops, a six-inch piece of glass tubing bent at right angles, and a small glass funnel. Slip one end of the bent piece of glass tubing into the rubber stopper, and stick the latter in the hole made in the barrel. Then slip a short piece of the rubber tubing over the glass tubing, and place one of the pinch-stops on it to be used in regulating the supply of water from the tank (see Fig. 171). Set the barrel on one end of the table, and run the rubber tubing through a hole cut for it in the work-table.
It is advisable to filter the water used from the barrel, that you may be sure it is free from dirt, so an arrangement similar to that shown in Fig. 171 should be fastened below the work-table. It consists of a glass funnel set in a hole bored in a block of wood (see _A_ in Fig. 171), which is suspended from the bottom of the work-table by means of a stick (_B_), one end of which is nailed to block _A_ and the other end to the work-table. Keep a piece of filter-paper in the funnel. The rubber tubing should be cut just long enough to reach the funnel, and the bottom of this filter should come within an inch or two of the sink, which will be set in the shelf below.
You will find an iron drip-pan about as cheap