Section 122

satisfactory provision has not been, and ought to be, made for the drainage of such building; or

any private sewer, private drain, pipe, spout, sink or other necessary appliance provided in respect of such building, is insufficient; or

any private sewer or private drain provided in respect of such building which communicates directly or indirectly with a public sewer is so defective as to admit subsoil water; or

any private sewer or private drain formerly, but no longer, used for the drainage of such building is prejudicial to health or a nuisance, the local authority shall by notice require the owner of the building to make provision satisfactory to the authority for the drainage of the building, or require either the owner or the occupier of the building to do such work as may be necessary for renewing, repairing, or cleansing the existing private sewer, private drain, pipe, spout, sink or other appliance, or for filling up, removing or otherwise rendering innocuous the disused private sewer or private drain.

Further provisions as to drainage of existing buildings.