B45.9-99

1. Scope 1.1 This Standard applies to macerating/pumping systems that collect waste from a single water closet, lavatories, and/or bathtubs located in the same room, and that grind these macerated wastes and pump them to some point in the sanitary drainage system. Note: A macerating system may comprise three major components: the container that houses the operating mechanisms, the pressure chamber that automatically activates and deactivates, and an induction motor that drives the shredder blades and pump assembly. 1.2 This Standard is intended to be used in conjunction with the applicable requirements, definitions, and reference publications of CSA Standard B45.0. 1.3 The purpose of this Standard is to establish a generally acceptable performance standard for macerating systems and related components for directly affixed water closets and other fixtures designed for above-the-floor installations. Notes: (1) Directly affixed systems consist of a macerating tank and integral grinder/pump mechanism and a water closet and related components. Integral systems consist of a single water closet with a built-in grinder/pump mechanism. (2) It is not the intent of this Standard to prevent the use of any alternative materials or methods of construction. 1.4 The values given in SI (metric) units are the standard. The values given in parentheses are for information only.