Alright so we made a bit of a mess the other day. Pulled the washing machine out and the pipe snapped off the back of it and flooded the place. It was connected to the pipe on the right. It had a stopcock on it identical the the blue circled one, but turning it wouldn't shut the water off so it was blocked off with a new part (red circle) today. Now we have a new pipe for the washing machine but this time connected to the pipe on the left. When we turn the stopcock to get water flowing, nothing happens. Main water is on and the sink works but the pipe on the left has no water flow to it. I'm sure this is a simple fix but can't get it going.