|Question: 05-17||Code Section: 7||Date: 5 February 2014||
OBC 2012 Reference:
1) If a building is under construction and I install a 2" trap on a fixture, would I be able to run this trap arm 2.4 M?
2) If I am stack venting and increase a bath tub trap to 2" in order to extend the trap arm length so that I can avoid separately venting it, would the load still be 1.5 fu's or 3 fu's?
1) Yes: as per Table 220.127.116.11, the maximum trap arm length for a 2” trap, installed at a 1 in 50 minimum slope, is 2.4m.
2) 1.5 fixture units should be assigned to the bathtub as it is a listed fixture according to Table 18.104.22.168