Here is a photograph I took yesterday in Jardin House (Central, Hong Kong) this hand basin tap was obviously intended to save energy and water, in reality does neither. You will note that this particular model has the flat faced user sensor located very near the base of the stem, and that its downfall.
When using this tap water droplets adhere to the sensor plate. Therefore after you have finished, the sensor still detects “a user” and the tap continues to discharge water long after the user has left the room. Just because it says energy saving on the box doesn’t make it so.
– John Herbert, Consultant, Kelcroft E&M Limited
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