My plumber, who is really into his engineering has installed brand new plumbing in my kitchen. The endpoint valves for washing machine and dishwasher are "non return" valves.
Both of these valves have some sort of a "button" inside. When the valves are open and water is flowing, pushing that button stops the flow.
- Why is this there?
On the other side, the water-in hose that came with my washing machine has a "rod" inside, which is clearly designed to push the "button" inside the valve...
- Why is that there?
Basically, it feels like the hose and the valve were designed in some way to interface with each other and prevent me from doing what I am trying to do (get water into my washing machine)
- What am I doing wrong and can I adjust my system to work for me?