Description of the Bug
Filled the iron tank full of lava it deleted the lava from the drum after it was filled

To Reproduce
Step1: Fill iron tank with lava until its completely full
Step2: iron Tank deletes lava after full

Expected behavior
I expected the iron tank to stop accepting lava after it was full

One would assume they were using a drum from extra utilities 2 as a source of the fluid.

Drum?

And how did they get that fluid into the tank?

i used a fluiduct from thermal expansion

One would assume they were using a drum from extra utilities 2 as a source of the fluid.

i was actually using ender tanks for it

Hi! I built a 334 iron tank with one valve in beta2 filling it with oil in creative mode with buckets the level meter said full after 64 bucket and keep accepting new buckets of oil. It is not deleted but the scale is wrong. After switching to survival mode i can extract the oil i pured in and the scale wont drop untli i get the overflow out.
Further more all tank size indicate that they are full afer 64 bucket of oil. even the 998 one.

So possibly an issue with the fluid widget.

So this is actually a duplicate of #1567. Moving the talks there.