Are you still allowed to install metered faucets in public lavs, you just can't claim an savings from the conversion? The reference manual is a little ambiguous by saying the duration-based "savings" from metered faucets is not allowed, but doesn't go so far as to say that you can't install them still, since they are not required to be water-sense. What if you put a .35 aerator on a metered faucet and only claim the reduction from .5 gpm to .35 gpm in the calculator? Is this still acceptable?