OCR Text |
Show FOR THE ORCHARDIST. The Application of Water Pressure as a Spray Power. Compressed air and gas have been used for somo yours ns powers for spraying. Gas is expensive, and when compressed air is used, tho air compressor com-pressor with engine at charging station sta-tion glvo high initial cost and some complications. Still theso types of sprayers havo been making headway for steep orchards where gasollno rigs 1 "T Water Pretiure 8pray Rig. could hardly go, and whero tho acre-ago acre-ago warranted the uso of several field rigs which wore charged at ono compressor. com-pressor. Whore high water pressure is avallablo, writes a correspondent of tho Rural New Yorker, I know tho charging of spray rigs working as above may bo simplified, for with an airtight pressure tank connected with tho water system it Is only necessary to turn in tho water to have the air compressed to tho water pressure figure. fig-ure. An air plpo leading from tho highest high-est point of tho tank will convey tho compressed nlr to tho spray rig, either to portion of tho iron spray tank or to n' separate tank, as the case may be. In tho caso of single tank sprayers tho spray tank would be filled, half full or less of spray material, and tho remaining re-maining space with air at a pressure of 1C0 pounds or moro, which will expel tho spray at a sufficient spray pressure If modern nozzles are used. Tho charging tank should bo large, for it must bu emptlod as soon as it fills completely with water, and to gain strength it would bo well to use several tanks of less size. Separate tanks on the field rig also give the advantage ot greater 'strength, and the pressure may be used at a more uniform uni-form rato if desired. Whero tho water pressure Is a little low It may bo supplemented by the uso ot a force pump or a gas tube. |