Refrigerators connected in this manner have been found to be great ice savers. It prevents hot air from entering the boxes, as it does when a pan is placed under the waste pipe of the refrigerator, as the waste pipe does not come within several inches of the top of the pan. Soil stack is usually of two or three-inch galvanized pipe with galvanized fittings. Stack should vent to the atmosphere and before it is connected to the soil pipe, a trap should be inserted.
Beer Pump and Piping
Illustration shown here is beer pumps and piping connection. Different makes of beer pumps: this will give a plumber a good knowledge of this kind of work. These cuts show hydraulic beer pump and carbon gas pump outfits.
Janette Automatic Electric Beer Pump. The principal feature of this pump is, that it is automatic in its operating and can be set to operate at am pressure from 10 to 50 pounds, and when connected to a storage tank the air can be regulated.
The automatic cut-off is very simple, with the positive knock out never failing to start or stop the pump at the pressure desired. The connections as shown here are very simple to make if the sketch is followed outright. There is nothing to get out of order in the Janette Beer Pump.