A change to the minimum flow rate sizing table lowered the flow rate to showers, lavatories and sinks. This table is used by a designer to size the water piping system. Photo courtesy of American Standard
The committee hearing the plumbing and mechanical changes is unique. Four representatives from the National Association of Home Builders serve on the committee. That’s four of 10 total voting members, including the chair, coming from one association. The four NAHB representatives tend to vote as a block on most issues.