Hi jesse, the Scale your resolution is too low. Always scale your Domain in Object Mode and then Apply the Scale (that will ensure the the voxels used for the resolution are cubes and not ‘stretched, like in you case; see bottom left in the Domain),
And the set your resolution so high that the voxel size is small enough for your liking. (Notice how the distance from the liquid to the walls is exactly one voxel…)
(I know! Physics Simulations can be sooo frustrating; you have too get everything right, but after doing it enough, it will become second nature and the results can be quite spectacular!)
