With us this part fulfills only one task: to fill the paddling of our children with slightly warm water, so that they can jump in also not so hot days without get blue lips or a cold ... For the adapter is ideal - simply connect to the standard faucet (before you have to unscrew the aerator own and then the adapter with supplied screw aerator it) and you're done: Let the water flow. Nix injected next - a clean and simple solution that saves me long hauling buckets with hot water. Excellent!