Issue description: Infinite liquids withdrawal

What happens:

Extracting liquid from system with < 1000 mb yields more liquid

What you expected to happen:

No liquid in storage

Steps to reproduce:

1. Have fluid storage block with 350 mb (any liquid, any amount < 1000mb)
2. Attach an exporter in liquid mode to any tank

At single cycle tank will be filled with 350 mb, but 650 mb will remain in system

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

• Minecraft: 1.10.2
• Forge: .2092
• Refined Storage: 1.04

Does this issue occur on a server? [yes/no]
yes

If a (crash)log is relevant for this issue, link it here:

[pastebin/gist/etc link here]

Whoops, thanks

Does this happen to really any tank? Which ones did you try?

Yes, with any of IC2, Mekanism and TiCon

setup preview


notice filled tanks

...Fluid Interface?

https://github.com/raoulvdberge/refinedstorage/blob/mc1.10/src/main/java/refinedstorage/tile/TileFluidInterface.java#L122