Dear LEED-experten,

has anyone experience about the low-flow lavatory faucet on the restroom washbasin in Europe? Actually the LEED-baseline has a much lower value (2 l/min) than the European standard value (normally up to 5l/m bis 7l/min).

We has planned to install the aerator on the facet to reduce the flow-rate on the same pressure condition, same as the other leed project in Europe. But we’re wondering if this measure really has the benefit for our project? When a project located in a developed campus und has the existing sewage systems and pipes, the too low waste water flow will not complain with the certain filling ratio of the pipe, it is also a risk to damage the pipes.

Has anyone some advices or idea about this situation?

Thank you very much in advance.