Hi all!
I would like to ask about documenting flow rates for aerators used in projects.
1) Is there some specific requirement that the aerator needs to comply with or is a manufaturer's declaration on its flow rate sufficient? I do not have it in english so I need to translate it yet. Question is if it is enough?
2) I think it doesn't need to be WaterSense certified yet, does it?
3) Are there any requirements on testing methods to determine flow rate?

Thanks for your opinions...
Petr