 | Wisconsin. State Board of Health - 1916 - 156 ˹éÒ
...sketches 12 and 12 a.) (e) When Deep Seal Resealing Traps of the Centrifugal, Self-Scouring Type Must be Used. (1) When a common trap is not adequate protection...the waste pipe, extended at a grade of not less than J inch per foot. (3) When it is impracticable to vent, a deep seal resealing trap shall be installed.... | |
 | 1917 - 370 ˹éÒ
...revent pipe provided the total fall between the water level of the trap and vent pipe does not exceed the inside diameter of the waste pipe, extended at a grade of one-fourth inch per foot. (See Sketches No. 15 (a) and 15 (b) and Sections 8 and 19 (c).) Section 16.... | |
 | Wisconsin. State Board of Health - 1917 - 344 ˹éÒ
...revent pipe provided the total fall between the water level of the trap and vent pipe does not exceed the inside diameter of the waste pipe, extended at a grade of one-fourth inch per foot. (See Sketches No. 15 (a) and 15 (b) and Sections 8 and 19 (c).) Section 16.... | |
 | George A. Hool, Nathan C. Johnson - 1920 - 706 ˹éÒ
...Type Must be Used. 1. When a common trap is not adequate protection against sewer air. 13 Above roof 2. When the total fall of the soil or waste pipe between...the waste pipe, extended at a grade of not less than K in. per ft. 1_ Flo. 30. — Method of installing loop vent. Clean cuf3 Info hajsr arum Into house... | |
 | George A. Hool, Nathan Clarke Johnson - 1920 - 684 ˹éÒ
...vent pipe provided the total fall between the water level of the trap and vent pipe does not exceed the inside diameter of the waste pipe extended at a grade of % in. per ft. (Figs. 35 and 36 and Sect. 8 and 19c). (6) Back Vents not Required. — Basement or cellar... | |
 | Wisconsin. State Board of Health - 1922 - 212 ˹éÒ
...fall of the soil or waste pipe between the water level of the trap and the point of venting exceedsthe inside diameter of the waste pipe, extended at a grade...vertical leg, conforms with the provisions as shown in sketch No. 20. Size of pipe. Ma*. Total grade, Max.. dtv&lopzd JJist 1/4- in. 1/4- in 5ft. l"fc " l'/Z... | |
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Traps of this type will not be permitted under any circumstances in new construction. (2) When the total fall of the soil or waste pipe between the water level of the trap and the point of venting exceeds the inside diameter of the waste pipe, extended... 