I have a problem trying to use MFFS containment for my breeder reactor.
The breeder i run is neutral (heat should be stable) and requires full water cooling outside. The problem is that once blocks of water in the top layer evaporate the MFFS containment field doesn't replace them, and i have no way to get them into the field.
I've set it to shut down once heat goes above 9200, and flip the shield off and back on to regenerate the water. But that's sub optimal (cooling back down takes time during which the reactor is stopped, and once it turns back on more water evaporates and the process starts over) and dangerous (if something else unexpected fails, turning off the shield on a reactor that's about to go orbital seems like a bad idea lol).
It would be cool to have some upgrade that could regenerate water blocks, or an option to make the containment field bigger so that water source blocks could stay outside the 5x5x5 area...