I finally found what you're refering to, FFF 351.
https://factorio.com/blog/post/fff-351#:~:text=Fluid%20Mixing%20Prevention
I don't see any reference to fluid in machines there ?

Also, that's not mixing, mixing would be something like oil and sulfuric acid turning into lubricant if they ...

Before i look more, lets be clear we are on the same page. This is known behavior for fluid mechanics:
(In/out connections are not filtered, same type fluid connections are connected, fluid backflows from pipe to internal buffer)
Fluid mechanics.mp4


Known intended behaviour or unintended ...

But it is a pretty severe limitation that pipes cannot ever run out or you risk your entire pipe network the entire time.


From my experience running a pipe dry wont cause the "leak", but if the pipes are already contaminated (by https://forums.factorio.com/119600 or something else) then yes ...

When I changed the recipe from electro science to the lightning collector it stopped working. When I tried to move it down so I could add a tank, the pipe fills with holmium solution...

I could be wrong but if i guess correctly then the machine's internal fluid buffers do not reset when you ...

Once again I am faced with this bug.


Check https://forums.factorio.com/119600 to see if it could be the same issue. Currently caused when the game updates and I've seen a few new fluid mixing reports posted since 2.0.15 released. (edit: one of which was you :lol:, didn't read the names to see ...

Check https://forums.factorio.com/119600 to see if it might be the same fluid mixing issue as what you are experiencing, if you aren't doing anything to cause it yourself. Currently happens every time the game receives an update.

As for fluid output disappearing, EM plants have multiple outputs ...

While trying to fix a fluid mixing issue, I came across what I think is a seperate bug.

Use attached save file to reproduce.
1. Deconstruct electrolyte plant
2. Using either ctrl+z or manual build, replace electrolyte plant.
3. Electrolyte plant will produce electrolyte, but even without output ...

Once again I am faced with this bug. Attached save file. Place a pipe to carry electrolyte between the two machines, it will fill with holmium solution...
Could we get some info on this subject? Are we all crazy people who can't see something or is this something that is being looked into?

Edit ...

Also experiencing this issue in 2.0.13, makes it impossible for me to finally play space age after spending a lot of time shoring up defences...

Reproduce:
Use space thruster blueprint in hotbar to paste over the approriate section in the "Space debris 2" platform.

The pipes will instanly mix. I ...