this post was submitted on 25 Jun 2026
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100%? So no water at all.
A closed loop system would achieve this, or at least after the initial filling of the system.
No closed loop system is 100% efficient. I worked in my youth with steam loop systems and even they developed leaks. Every few years needed to be shutdown and drained. 100% if they truly meant that is a fantasy/lie.
"Designed" to be 100%. Obviously there are some practical limits, like if something wears out or physically breaks / degrades over time. Limits on how well something can be sealed, etc.
If you have an automobile, how often are you topping off the radiator?
How often you change coolant in a automobile varies from manufacturer to manufacturer. If you have a Toyota you should replace it every two years or 30,000 miles. Everyone keeps trying to convince me its 100% but its not and it can't ever be. The infrastructure to achieve it is way too expensive. They will just drain the water table. We are not dealing with decent human beings.