This design was originally a friends design but I have modified it. I made this reactor system today (the day I posted this) and the most recent change is the underground shutdown system. I also have never had one meltdown. http://test.vendaria.net/index…HHUUUUHCCHHCCPPCCPPXXXXXX
here are some pics
In case you are wondering, the top of the reactors are 9 blocks under the surface of the reactor building.
Here is a picture of the inside of the reactor building.
What do you guys think?