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Application of Subclause 7.4.2.1.(1)(d)(i) of the OBC to floor drains located within walk-in coolers within a grocery store. This Subclause states:
d) the following devices shall be indirectly connected to a drainage system
- a device for the display, storage, preparation or processing of food or drink
A walk-in cooler would be considered a device for the storage of food or drink. The major concern of the Branch is the possibility of sewage backing-up and contaminating the food products located within the cooler. Depending on the use of the cooler and the temperatures involved, the freezing of the trap seal and maintaining the trap seal may also be an issue.
The question asked was whether a backwater valve would comply with Subclause 7.4.2.1.(1)(d)(i). Indirectly connected is defined in the OBC as "not directly connected". Directly connected is defined as "physically connected in such a way that water or gas cannot escape from the connection". The connection of a drain that includes a backwater valve is still a directly connected drain. While a properly maintained backwater valve offers protection against sewage backing up into the cooler it does not constitute an indirect connection as defined within the OBC.
June 03, 1996
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