I inspected a 2006 built home and noticed the master bathroom vent stack pipes being a double sink tied into the right side sink vent pipe. I am not sure if this is installed correctly with the left side sink pipe rising and then 90 degree horizontal. I am not sure if the AHJ allows this type of installations. We are under the Florida Building Code which I believe adopted the IRC plumbing code. I don’t want to call out something that is not a big deal.
No sewer smell and the drains are functioning great. Thanks for the help.