09-12 Pre-plumbed shower stall

Question: 09-12Code Section:Date: 10 September 2009OBC 2006 Reference:

Question: (A) pre-plumbed shower stall with 1 rain shower head, 1 column telephone shower head and 8 body jets.

Is a 2″ drain acceptable in this application? Referencing Table (The contractor has reduced the drain to 1 ½” due to structural space of floor joists.)

Interpretation: The 2-inch drain is acceptable if specified by the manufacture and conforms to the appropriate standard if one exists. Furthermore, the drain must not be reduced in size.

Interpretation: Approved at AMES 2009