9.1.1 fluids as fluids ：It can only output one kind of liquid, such as electromagnetic science pack. After decomposition, it can only output electrolyte, but not holmium solution.

You must empty the main fluid pipes using filtered pumps in order to output a second fluid from the Reverse Factory.

Here's an image of the save file I was provided to test the fluid output functionality:

The central main line is the "mixed" output, which can only carry one type of fluid at a time. The filtered pumps on each side pull out each unique type of fluid until the main line is completely empty, which then allows a second type of fluid to enter the main line, which will then be filtered out by another pump, etc. repeat

The red cables are probably not required (I think they might only exist to save on power draw?), but the filter part is absolutely required, to keep the different fluid networks isolated from each other. I'll add this to the main page, or maybe the FAQ's, to make this functionality more obvious, since I don't think this sort of setup is ever required in vanilla.

I used the red wires to read the contents of the 'reservoir' Storage Tank and then activate the relevant filtered pump. I honestly just assumed that was a necessary precaution. Bit silly of me tbh!

fluids as fluids：electromagnetic science pack，it can only output electrolyte, but not holmium solution. I wonder if there is a mistake in the recipe.
I hope the author will try it.

Ah, I hadn't tested with recipes that used more than one fluid, I understand now.

I'll have to look into it, but I think the issue might be number of output fluid_box, which I copied from the input (so even if there's two pipes, they are both connected to the same fluid_box internally). I should be able to separate them into two distinct fluid_box outputs, which would at least cover that science pack, but anything with 3 or more fluids in the recipe would run into the same issues. I'll have to add a check for that to ensure they can't be recycled (micro machines also get reduced to 1 output pipe, so they would need a separate filter as well...)

Will look into this when I can, thanks for the clarification!