So I know most people buy the thermactor plugs but I'm looking at and wonder why people just don't cap it where the check valve screws on on the top hose. They have to make a cap that fits those thread sizes I would think. In other words, the hard tube would still run to the back of the head but the check valves and things would be gone. Is that possible and has anyone done it. Seems like it was be way easier to do that.