Australian Capital Territory Consolidated Regulations

WATER AND SEWERAGE REGULATION 2001 - REG 16

    (1)     The following requirements are prescribed:

        (a)     if a closet pan and cistern are to be installed—the pan must be a reduced-flush closet pan and the cistern a dual-flush 6/3L cistern;

        (b)     if a closet pan only is to be installed—the pan must be a reduced-flush closet pan;

        (c)     if a cistern is to be installed that is connected to an existing full-flush closet pan—the cistern must be a separate dual-flush cistern that—

              (i)     is of at least 11L capacity; and

              (ii)     gives an effective full-flush not larger than 10L, and for test purposes, 9L; and

              (iii)     gives an effective half-flush not larger than 5.5L, and for test purposes, 4.5L;

        (d)     if a cistern is to be installed that is connected to an existing reduced-flush closet pan—the cistern must be a dual-flush 6/3L cistern;

        (e)     if a closet pan is to be flushed with water drawn from a central storage cistern installed before 1 January 1994 and—

              (i)     the pan is a full-flush closet pan—the pan must be flushed with an effective full-flush not exceeding 10L and for test purposes, 9L; or

              (ii)     the pan is a reduced-flush closet pan—the pan must be flushed with an effective full-flush not exceeding 10L and for test purposes, either 6L or 9L;

        (f)     the pan may be flushed with a half-flush of at least 4.5L and not exceeding 5.5L if a full-flush closet pan is to be flushed—

              (i)     with water drawn from a central storage cistern; and

              (ii)     by control fittings that allow the user to decide whether to give a full-flush or half-flush;

        (g)     the pan may be flushed with a half-flush of at least 3L and not exceeding 4L if a reduced-flush closet pan is to be flushed—

              (i)     with water drawn from a central storage cistern; and

              (ii)     by control fittings that allow the user to decide whether to give a full-flush or half-flush;

        (h)     if a central storage cistern installation is to be installed—

              (i)     reduced-flush closet pans must be installed; and

              (ii)     control fittings must be installed that automatically control the amount of water used in a way that each flush uses—

    (A)     on a full-flush—at least 6L and not exceeding 7L; or

    (B)     on a half-flush—at least 3L and not exceeding 4L.

    (2)     In this section:

dual-flush 6/3L cistern means a cistern that is at least 8L capacity—

        (a)     giving an effective full-flush not exceeding 7L and for test purposes 6L; and

        (b)     giving an effective half-flush not exceeding 4L and for test purposes 3L.

"full-flush closet pan" means a closet pan that is a full-flush pan under AS 1172, as in force from time to time.

"reduced-flush closet pan" means a closet pan that is a reduced-flush pan under AS 1172, as in force from time to time.