MAY 19.] THE NEW ZEALAND GAZETTE. 1543

more properties are drained by one pipe the Board shall determine by whom and in what proportion the cost of removing such obstruction shall be paid.

11. No person shall cause, suffer, or permit two or more premises to be drained by one common pipe.

12. All drainpipes, traps, and other fittings provided by the Board, and all drainpipes beneath public streets and footpaths, shall be the property of the Board.

13. No person shall connect any drainpipe, urinal, trap, cesspool, or other fitting with any drainpipe communicating or intending to communicate with any sewer unless he shall have previously obtained a permit from the Board.

14. No person shall remove or make any alteration in any drainpipe, urinal, trap, or other fitting communicating with any sewer unless he shall have previously given the Clerk three days’ notice in writing of his intention to do so. Such notice to be given on Form B in the Schedule hereto.

15. No person shall do any plumbing-work in connection with the drainage of any property unless he shall have been previously licensed by the Board as an “authorised plumber,” and shall have engaged to conform to and comply with these regulations.

16. No person shall lay any drains or remove or alter or make any connection with the drains of any property unless he shall have been previously licensed by the Board as an “authorised drain layer and connector,” shall have obtained the necessary permit, and shall have engaged to conform to and comply with these regulations.

17. All drainage-work shall be carried out expeditiously and with as little inconvenience to traffic as possible.

18. The Clerk shall keep a register of all licenses of drain-connectors and plumbers issued under these by-laws. Any such license may be revoked by the Board for any breach of the provisions of Part II of these by-laws.

Provided that before revoking any such license the Board shall submit to the licensee a statement in writing of any charge or charges made against him, and shall afford him and his witnesses (if any) a reasonable opportunity of being heard in answer to any such charge or charges.

19. The licensed plumbers or drain-connectors employed on any work shall carry their licenses with them, and shall produce the same when required to do so by the person for whom the work is being performed or by the Inspector. In the event of any license being defaced, lost, or destroyed, a fresh license may be obtained from the Clerk on payment to him of a fee of 1s.

All work undertaken by licensed drain-connectors or licensed plumbers under or in connection with this by-law shall be done by them personally or by some other licensed drain-connector or plumber, but the licensed drain-connector or plumber undertaking the work shall at all times be liable to make good any defects which may arise through the carelessness or incompetence of the person actually performing the work.

No person shall make use of a license which does not belong to him or allow his license to be used by any one else.

20. It shall not be lawful for any person other than a licensed drain-connector duly licensed under this by-law to execute any of the work hereinafter specified :—

(a.) To lay any private drain :

(b.) To alter, reconstruct, extend, repair, open up, or remove any private drain :

(c.) To connect any private drain with another private drain or sewer :

(d.) To disconnect any private drain from another private drain or sewer :

(e.) To affix, repair, or remove any disconnecting trap or gully-trap or other trap in connection with a private drain.

21. It shall not be lawful for any person other than a licensed plumber duly licensed under this by-law to execute any of the works hereinafter specified :—

(a.) Any work in connection with the laying-on of the water to and the trapping and ventilating of the traps of urinals and water-closets :

(b.) The affixing, repairing, or removing of lead and other safes under baths, sinks, and other conveniences :

(c.) The affixing, repairing, or removal of overflow or waste pipes connected with baths, sinks, and sanitary conveniences or appliances of any description :

(d.) The affixing, setting-up, repairing, or removal of the ventilation-shafts required under this by-law, and the caps or cowls thereof, and the connection of the said shafts with their disconnection from drains :

(e.) Any plumbing-work in connection with any sanitary convenience or appliance required to be provided, affixed, or set up by virtue of this part of the by-law.

22. Any footpath, road, channel, kerb, or other property under the control of the Board cut or opened up or removed by a drainlayer shall be repaired and put in a thoroughly satisfactory condition without delay by such drainlayer; otherwise the work will be done by the Board, and the drainlayer will be charged with the expense; and the same may be recovered by the Board as a debt.

23. Any person doing or causing to be done any work connected in any way with the drainage of any premises shall execute the same in every respect in accordance with these by-laws. All such work shall be inspected by the Inspector, and every facility shall be offered for such inspection. No underground or enclosed work shall on any account be covered up or concealed from view until the same has been duly inspected and passed by the Inspector. The owner or his authorised agent shall give notice in writing to the Clerk when any work is ready for inspection, and such inspection shall be commenced within forty-eight hours of such notification being received at the office of the Board, except when the notice is given on Friday or Saturday, when seventy-two hours’ notice must be allowed. The Inspector may apply any fair and good test to prove the thoroughness of the work done. The owner or his authorised agent shall remove or repair any defective material or work when so ordered by the Inspector. The owner or his authorised agent shall on the completion of the work file in the office of the Board a ground-plan of the work done under the permit of the Board issued for the same.

24. Any drainpipe, trap, urinal, water-closet, sink, or other fitting laid, used, or constructed otherwise than in accordance with these regulations, or which shall in the opinion of the Board or the Inspector be or become of bad or defective quality, shall upon notice in writing from the Board be removed or repaired in the manner and within the time fixed by the Board; and the Board may, should it think fit, on failure by the person liable to perform such removal or repair, remove or repair the said defective fitting, and the owner or occupier of the premises shall pay the cost incurred in such removal or repair to the Board.

25. The drain outside a house or building shall be constructed of stoneware pipes unless laid less than 2 ft. deep from surface to top of pipe in places liable to heavy traffic, when it shall be of cast or wrought iron. Heavy cast- or wrought-iron pipes must be used if the ground has been made up or filled in or adjoin a cellar.

26. No right-angled junction shall be permitted in any drain. All junctions of pipe drains shall be effected with Y junction pipes of their respective diameters. Every branch drain shall join a main drain, and a main drain the sewer, obliquely in the direction of its flow.

27. Trenches for drains shall be dug so as to meet the public sewers at the position of the Y branches indicated by the Board. The material thrown from the trench shall be placed so as not to obstruct and so as to cause the least inconvenience to the public. Proper barriers and lights shall be maintained on the banks of the trench to guard the public against accident during the progress of the work. In refilling the trench the earth shall be carefully rammed so as to keep the pipe in position and avoid settling. No stone shall be used in refilling until there has been a depth of at least 2 ft. of earth placed over the pipes.

28. As far as possible all pipe lines shall be perfectly straight. Where changes of direction or grade occur these shall be made by open manholes or by bend pipes and inspection openings, as directed by the Inspector.

29. The pipes must be laid with true gradients, the inclination being not flatter than 1 in 40 for 4 in. pipes and 1 in 60 for 6 in. pipes.

30. Pipe trenches must be carefully cut in the solid ground, and must be evenly graded before the pipes are laid. They shall be of such widths as to allow of the pipes being properly jointed and to permit of thorough inspection.

31. All 4 in. stoneware pipes shall be laid on a bed of concrete composed of one part hydraulic lime and four parts of fine scoria ash. The concrete to extend the full width of trench, be 3 in. in depth below the bottom of pipes, and be brought up on each side to the centre-line of pipes. All 6 in. pipes shall be similarly bedded in concrete, but where the grade for 6 in. pipes is steeper than 1 in 10 the concrete shall extend 4 in. below the bottoms of the pipes and be brought up on each side to the centre-line of pipes. All traps in the ground to have at least 4 in. of concrete under them.

32. The ends of all private drains not immediately connected with the plumbing fixtures, also all access openings,