NCC 2016 Volume Three
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Section C Sanitary Plumbing and Drainage Systems

Section C Sanitary Plumbing and Drainage Systems

Part C2 Sanitary Drainage Systems

Delete C2.2(a) and insert NT C2.2(a) as follows:

NT C2.2 General requirements

(a)

The design, construction, installation, replacement, repair, alteration and maintenance of a sanitary drainage system must be in accordance with the following:

(i)

AS/NZS 3500.2 with the following variations:

(A)

Substitute clause 4.6.6.6 as follows:

4.6.6.6

A minimum height of 100 mm shall be maintained between the top of the overflow gully riser and the lowest fixture connected to the drain; and

(B)

Substitute clause 4.6.6.7 as follows:

4.6.6.7

The minimum height between the top of the overflow gully riser and the surrounding natural ground surface level shall be 150 mm, except where the gully riser is located in a path or paved area, where it shall be finished at a level so as to prevent the ponding and ingress of water; and

(C)

inspection openings are only required—

(aa)

at the connections to the Network Utility Operator sewer main; and

(bb)

where a new section of drain is to be connected to an existing drain; and

(cc)

as required by the Regulator; and

(D)

a domestic swimming pool must not be connected to sewer main; and

(E)

a swimming pool other than a domestic swimming pool, must not be connected to a sewer main without the approval of the Network Utility Operator; and

(F)

a clothes washing machine must not discharge into a floor waste gully; or

(ii)

AS/NZS 3500.5 with the following variations:

(A)

Substitute clause 4.36.6.6 as follows:

4.36.6.6

A minimum height of 100 mm shall be maintained between the top of the overflow gully riser and the lowest fixture connected to the drain; and

(B)

Substitute clause 4.36.6.7 as follows:

4.36.6.7

The minimum height between the top of the overflow gully riser and the surrounding natural ground surface level shall be 150 mm, except where the gully riser is located in a path or paved area, where it shall be finished at a level so as to prevent the ponding and ingress of water; and

(C)

inspection openings are only required—

(aa)

at the connections to the Network Utility Operatorsewer main; and

(bb)

where a new section of drain is to be connected to an existing drain; and

(cc)

as required by the Regulator; and

(D)

a domestic swimming pool must not be connected to sewer main; and

(E)

a swimming pool other than a domestic swimming pool, must not be connected to a sewer main without the approval of the Network Utility Operator; and

(F)

a clothes washing machine must not discharge into a floor waste gully.

(iii)

The requirements of this Part.