To make a cheap syphon washer that will keep photographic prints in circular motion, to one side of a bucket solder a syphon of ordinary lead piping, the short leg inside being lin. above the bottom. At the top of the syphon punch a hole and fit a cork. Fix in a circular sheet of perforated zinc inside the bucket 3 in. from the bottom. At the top of the bucket opposite the syphon attach another pipe, connected with the ordinary water tap by rubber tubing, through which the water flows. This keeps the prints moving. The contaminated water falls below the perforated disc and is removed by the syphon. When the cork of the syphon is in, the washer will run dry, but in use the cork should be removed, so that, in the event of any obstruction or failure of the water supply, the washer will remain filled level with the cork-hole. The edges of the zinc must be bent downwards, as there must be no sharp edges to come in contact with the prints.