The high pressure pumps feed three house tanks on 

 the 27th floor, of a combined capacity of 5,000 gal- 

 ltn>. one on the 3!Mh Hoor of 7.000 gallons capacity, 

 ami one on the 13d Hoor of 1,500 gallon> capacity. 

 til rough one pump line. 



The -.'7th- Hoor tanks supply from the 2<>th story 

 <lo\vn to and including the fixtures in the 13th Me/- 

 xaniiie story and the roof houses of the Singer 

 Building and Bourne Building. 



The tank on the 3!)th Hoor supplies from the 35th 

 to the 27th >tori-> inclusive; connections are also 

 taken from this tank to supply the high pressure hot 

 water aii<l iee water systems. 



The 43d-floor tank supplies the fixtures from the 

 39th to the :5(itli stories inclusive. 



Owing to the wind bracing in the steel construc- 

 tion, these nine house tanks had to be set into place 

 directly after the floor framing under them had been 

 erected. 



Seven of these tanks were hoisted into position, 

 while two of them, those for the 39th and 43d floors, 

 had to be assembled in place. The 43d-floor tank 

 has a 12-inch sleeve passing through it to accom- 

 modate the flag pole, which extends down to this 

 floor. 



There are five 6-inch .standpipes extending from 

 the basement to the 13th floor and one each from the 

 14th and 43d floors, with over one hundred 2^-inch fire 

 hose connections in the combined buildings. There 

 are also hose connections on the roofs of the Singer 

 Building and Bourne Building, from which water 

 could be played on the adjoining buildings. Each 

 of these fire outlets has 75 feet of hose, which, to- 

 gether with the valve, rack and nozzle, are placed 

 in sj>ecially designed boxes set into the walls flush 

 with the finished trim, thus offering no obstruction 

 in the stairways and corridors, as fire appliances 

 usually do. 



There are Siamese connections for the Fire De- 

 partment steamers to attach to three on the Broad- 

 way side and two on Liberty Street. 



All office basins throughout the Tower are sup- 

 plied with cold, hot and ice water. There are two 

 hot water heaters, one for the high pressure system, 

 tested to 500 pounds, and one for the low pressure 

 system, tested to 250 pounds. 



The high pressure hot water system is supplied 



from the 39th-floor tank through a 4-inch down supply 

 running to the hot water heater. From there a 3-inch 

 hot water riser is run up to the 13th Mex/anine Hoor 

 where it branches horizontally on the ceiling and feeds 

 eight risers extending up to the 3!)th floor, supplying 



ixi 



Section f trough Tank 



[58] 



