43. The overflow-pipes from water-closet cisterns must discharge into an open sink, or where its discharge will attract attention and indicate that waste of water is occurring, but not into the bowl of the water-closet, not into the soil or waste pipe, nor into the drain or sewer. When the pressure of the Croton is not sufficient to supply these tanks, a pump must be provided.

44. Tanks for drinking-water are objectionable ; if indispensable, they must never be lined with lead, galvanized iron, or zinc. They should be constructed of iron, or wood lined with tinned and planished copper. The overflow should discharge upon the roof, or be trapped and discharge into an open sink, never into any soil or waste pipe or water-closet trap, nor into the drain or sewer.

45. Rain-water leaders must never be used as soil, waste, or vent pipes, nor shall any soil, waste, or vent pipe be used as a leader.

46. When within the house, the leader must be of cast-iron, with leaded joints; when outside of the house and connected with the house-drain it must be trapped beneath the ground or just inside of the wall, the trap being arranged in either case so as to prevent freezing. In every case where a leader opens near a window or a light-shaft it must be properly trapped at its base.

47. No steam-exhaust or blow-off pipe from a steam-boiler will be allowed to connect with any soil or waste pipe, or directly with the house-drain. They should discharge into a tank or condenser the waste from which, if to be discharged into the sewer through the house-drain, must be connected on the sewer side of the running trap.

48. Subsoil drains must be provided whenever necessary.

49. Yards and areas should always be properly graded, cemented, flagged, or well paved, and properly drained; when the drain is connected with the house-drain, it must be effectively trapped. Front-area drains must, where practicable, be connected with the house-drain inside of the running trap.

50. Cellar and foundation walls must, where possible, be rendered impervious to dampness, and the use of asphaltum or coal-tar pitch in addition to hydraulic-cement is recommended for that purpose.

51. No privy-vault or school-sink will be allowed in any cellar or basement; nor shall the general privy accommodation of a tenement or lodging house be allowed to be in the cellar or basement.

52. No privy-vault, or cesspool for sewage, will be permitted in any part of the city where water-closets or a school-sink can be connected with a public sewer in the street.

53. School-sinks must be of cast-iron, not more than two feet in depth, connected at the upper end with the Croton supply, and at the lower end with a drain leading to the street-sewer, and provided with an outlet at the lowest point and on the bottom so as to admit of a complete discharge of the contents whenever the outlet is opened and the sink flushed with water.

54. The sink must be set so that the flange will be at least two feet below the yard surface, to prevent freezing. It must be at least ten feet from any window or as near that distance as practicable.

55. The waste-pipe from a hydrant-sink in the yard must be properly trapped, especially where it discharges into a school-sink, a privv-vault, or cesspool, or the house-drain.

56. Open light and air courts must be properly drained.

57. When a privy-vault or cesspool must necessarily be used, and the water-supply of the premises is from a well, they must be at least fifty feet from the well; and the privy-vault must be absolutely tight.

By order of the Board, Charles F. Chandler, Emmons Clark, President.

Secretary, Brooklyn Construction Of Drains, Soil-Pipes, And Plumbing Of New Buildings Plans And Drawings.

25 - I. There must be a separate plan for each house, giving the exact location of the same in the manner specified on the plan, including the ward, block number, lot number, and street number, when possible.

II. Every plan must contain a clear description of the plumbing, on a blank prescribed and supplied for this purpose, showing size, kind, and weight of pipes and kind of traps, closets, and fixtures to be used.

III. Plans will be approved or rejected within ten days from the time of filing.

IV. All drawings must be legibly drawn in ink on heavy white paper, or on tracing linen.

V. The size of the paper or linen must be 8 by 12 1/2 inches, or 12 1/2 by 15 inches, and the drawing so made as to leave not less than an inch of margin outside thereof. The former size is preferred, and should be used whenever practicable.

VI. One vertical drawing will be sufficient for a building when it can be made to show all the work. If the work is intricate, and cannot be shown by one drawing, two or more should be made.

VII. This Department (Department of Health) must be notified when any work is ready for inspection, and all work must be left uncovered and convenient for examination until inspected and approved. All notifications of this nature must be in writing, specifying the plan number.

VIII. After a plan has once been approved, no alteration of the same will be allowed except on the written application of the owner. All applications for information or rulings from this Department (Department of Health) must be made in writing, addressed to the Commissioner.