Hello,
I can't use import bus to import slurries in my applied network, storage bus work just fine and I can import gasses like sulfuric acid so my setup seem fine. I don't know if it's normal or a bug.

Mod version : Applied-Mekanistics-1.3.4

I have the same Problem.

Applied-Mekanistics-1.3.4
appliedenergistics2-forge-12.9.2
Mekanism-1.19.2-10.3.8.477

I can reproduce the issue.

The import bus seems to be buged. It is not possible to use the import bus to import dirty slurry. But it is possible to use a storage bus to make it accessible, so I can use an export bus + interface to "import" the slurry into a chemical storage cell.

So the export bus and storage bus can handle dirty slurry as intended.

Clean slurry can be imported via the import bus though.

Can you guys try this build? There should've been no distinction between clean and dirty slurry before through; are you sure your slurry IO config was right?

With the Version you posted it dosnt work either.
I added images on how i set it up just so you can test it.

Oh I think I see the issue; it's trying to extract from a gas storage (which is empty, but exposed as you didn't config gas IO to nothing on that face) but then doesn't continue to other chemical types

Try this build

it's trying to extract from a gas storage (which is empty, but exposed as you didn't config gas IO to nothing on that face) but then doesn't continue to other chemical types

this actually is the issue, i disabled all other IO on chemical tank and it import the slurries as intented (clean and dirty ones), it even work with the current release

Sorry, I forgot to publish a release for this. Get it here