(1)

The municipal drains shall be so constructed, maintained and kept as to create the least practicable nuisance and shall be from time to time properly flushed, cleansed and emptied.

(2)

For the purpose of flushing, cleansing and emptying the said drains, the Commissioner may, when authorised by the corporation in this behalf, construct or set up such reservoirs, sluices, engines and other works, as he shall from time to time deem necessary.