Section 75. Water supply

1. In every multiple dwelling erected after April
  eighteenth, nineteen hundred twenty-nine, where space  is  provided  for
  cooking  there  shall  be  in every apartment a proper sink with running
  water and with a two-inch waste and trap.
    2.  The  owner  of  every  multiple  dwelling  shall  provide   proper
  appliances to receive and distribute an adequate supply of water, to and
  in  every  apartment  or suite of rooms at all times of the year, during
  all hours. Failure in the  general  supply  of  water  from  the  street
  service  main  shall  not  be  construed as a failure on the part of the
  owner, if suitable appliances to receive and distribute such water  have
  been provided in the dwelling.
    3.  For  dwellings three or more stories in height erected on or after
  April eighteenth, nineteen hundred twenty-nine, and  for  all  dwellings
  erected  after  January  first,  nineteen hundred fifty-one, such supply
  shall include both hot and cold water at all times of the  year,  during
  all  hours,  except that hot water service shall not be required by this
  section in a dwelling erected before April eighteenth, nineteen  hundred
  twenty-nine,  if  the  owner  establishes  to  the  satisfaction  of the
  department that such service was not furnished or required  before  such
  date.
    4. No multiple dwelling shall be erected unless it is connected with a
  street service water main.
    5.   No   required  sink  shall  be  placed  within  any  water-closet
  compartment or within any bathroom containing a water-closet.