I want to buy an aerator for my kitchen tap to improve the flow of water and make it soft like all those lovely taps in Zurich, Switzerland (it also reduces water consumption by up to 60%), but I don't know which kind to buy: male or female. This website says:
For taps with a thread on the outside you need a Female Aerator. For taps with the thread on the inside you need a Male aerator.Does this mean my tap is female? I wouldn't call that a thread and I don't think I could unscrew it.
Can you help?