law: 189. Power of Chairperson to affix shafts, etc., for ventilation of drain or cesspool.
  For the purpose of ventilating any drain or cesspool, whether vested in Council or not, the Chairperson may, in accordance with bye-laws made in this behalf, erect upon any premises or affix to the outside of any building or to any tree any such shaft or pipe as may appear to him to be necessary.