water-seal

• “The tunnel must dip then come up like the water-seal trap under a kitchen sink.”

  Simon & Schuster: SERPENT

• “For example, water-seal slabs in latrines reduce the breeding sites for culicine mosquitos, vectors of filariasis; treatment of excrete prior to its disposal can kill the eggs and cysts of many human parasites (Ascaris, Entamoeba, and Schistosoma spp), thus preventing contamination of both ground and water.”

  Chapter 4

• “Fixed-dome plants are regarded as leaktight if the water-seal test shows less than 2% water loss, and the gas-seal test shows less than 5% gas loss.”

  7. Plant operation, maintenance and repair

• “One other factor to be discussed with women in early planning is the reuse of gray water for flushing of water-seal latrines.”

  Chapter 10

• “Vessels for, with a pressure cooker, with the water-seal outfit, with tin cans,”

  Woman's Institute Library of Cookery Volume 5: Fruit and Fruit Desserts; Canning and Drying; Jelly Making, Preserving and Pickling; Confections; Beverages; the Planning of Meals

• “-- A water-seal outfit, which may be purchased in stores that sell canning supplies, consists of a large metal vessel into which fits a perforated metal basket designed to hold jars of food.”

  Woman's Institute Library of Cookery Volume 5: Fruit and Fruit Desserts; Canning and Drying; Jelly Making, Preserving and Pickling; Confections; Beverages; the Planning of Meals

• “Thus, the water-seal outfit will cook the food in the cans in about one-fourth less time than will the water bath of the one-period cold-pack canning method.”

  Woman's Institute Library of Cookery Volume 5: Fruit and Fruit Desserts; Canning and Drying; Jelly Making, Preserving and Pickling; Confections; Beverages; the Planning of Meals

• “In one of the steam-pressure methods, what is known as a _water-seal outfit_ is required, and in the other a device called a _pressure cooker_ is employed.”

  Woman's Institute Library of Cookery Volume 5: Fruit and Fruit Desserts; Canning and Drying; Jelly Making, Preserving and Pickling; Confections; Beverages; the Planning of Meals

• “Gullies" in cellar floors should be properly trapped; and this does _not_ mean that they shall have bell-traps nor siphon-traps with shallow water-seal.”

  Burroughs' Encyclopaedia of Astounding Facts and Useful Information, 1889

• “The water-seal outfit, the steam-pressure outfit and the aluminum pressure cooker follow in order of efficiency as regards the time required to sterilize food.”

  Every Step in Canning

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