SEPT. 6.] THE NEW ZEALAND GAZETTE. 2357

Range of lavatory-basins.

$(i.)$ Wherever a range of lavatory-basins is placed on the ground floor of a building outside a main building, and such ground floor is of concrete or other impervious material, the wastes of such lavatory-basins need not be trapped, but may discharge into an impervious channel in the floor graded to discharge in the open air over a gully-trap.

Chemical sinks.

$(j.)$ The provisions herein prescribed shall not apply to the wastes of sinks for the reception of chemicals, but such wastes shall be treated in an approved manner.

Terminal vent-shafts.

(9.) In respect to the ventilation of every drain connecting any premises to a sewer the following conditions shall be carried out :---

$(a.)$ At that part of the drain which is at the highest level there shall be connected to the drain a terminal ventilating-shaft which shall be carried up on the outside of the building in as direct a line as possible, and terminated in an approved position so that the terminal end shall be not less than $3 \mathrm{ft}$. above the eaves or parapet of the building to which it is attached, not less than $3 \mathrm{ft}$. from any chimney-opening, and not less than $6 \mathrm{ft}$. higher than any window below, or $12 \mathrm{ft}$. from any window above the level of the termination of such vent-shaft, and $3 \mathrm{ft}$. from any chimney-opening ; and such ventilation-shaft shall be constructed as follows :--

$(i.)$ It shall be made of lead, galvanized wrought iron, or cast iron.

$(ii.)$ It shall be of not less internal diameter than $3 \frac{1}{2}$ in.

$(iii.)$ There shall be a cap or cowl of approved material and design affixed to the top of the shaft.

$(iv.)$ Where owing to the situation or structure of the building it is not possible to carry the vent-shaft up wholly outside the building it shall be carried and constructed as directed by the Engineer.

$(v.)$ It shall be effectively protected from damage.

Terminal vents to be provided in certain cases for branch drains.

$(b.)$ At the highest portion of every branch drain which is over $15 \mathrm{ft}$. in length, or other branch drain where in the opinion of the Engineer it is necessary so to do, a terminal vent-shaft shall be connected to the drain similar in all respects to the vent-shaft prescribed in the last preceding paragraph.

$(c.)$ Wherever there is within $15 \mathrm{ft}$. of that part of the drain or branch drain which is at the highest level a soilpipe connected to such drain, and ventilated as prescribed in sub-clauses $(4)$ and $(5)$ hereto, it shall not be necessary to connect a main ventilation-shaft as herein prescribed to such drain or branch drain.

Terminal vents to be altered in certain cases.

$(d.)$ If by reason of the addition to or erection of any building, or if for any other reason an existing terminal ventilation-shaft is in a position contrary to these regulations, or whereby a nuisance or conditions adverse to health may be created, the Engineer may serve notice on the owner of the building on which such terminal ventilation-shaft exists requiring him, within a time named in the notice, to lengthen, alter, or remove such ventilation-shaft in such manner as to make it comply with the regulations, or so as to prevent a nuisance or condition adverse to health, and it shall be the duty of the owner to comply with such notice within the time specified therein.

General penalty for breach of regulations.

21. Any person who shall do or cause to be done anything contrary to these regulations, or omits to do anything which these regulations require him to do, shall be liable to a penalty of £20, and in the case of a continuous breach of these regulations to a fine of £5 for every day or part of a day during which such breach continues.