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Issue description:

don't know know how to solve this problem

Steps to reproduce:

1.use eltric pump
2.oil
3. won't pump

Version (make sure you are on the latest version before reporting):

Forge:
Mekanism:
Other relevant version: 1.5?

If a (crash)log is relevant for this issue, link it here: (It's almost always relevant)

[gist / pastebin / etc link here. Please make sure that it isn't set to expire.]

No idea what the issue is due to the lack of information you have provided but if you want to reset which blocks it has marked as already having picked up I believe breaking and placing the pump will reset said calculation. In terms of it pumping it should work on any fluid as long as you place it over a source block and provide it energy.

I would assume from the info provided this is a duplicate of #6907