Strange vertical black stripes I'm new to Blender fluid simulation and want to fill a cylinder with water.

As you can see in the following image, it fills up the cylinder, but on the rendering result, there are strange black stripes.

I tried to increase the fluid resolution to 300, but it didn't resolve this issue.



The skyblue background is composed of 3 planes. I thought open space in other three axis could be a cause, so I put that cylinder in a cube, so that it resides in a closed area.



Unfortunately, it didn't solve the problem neither. 

Does anyone have an idea what causes this problem? I would really appreciate your help.
Your container is not properly scaled:


CTRL + A with your Container object selected, then apply Scale: no more black stripes.


Please note: in the image below I turned off object FluidDomaain for more clarity. 



Sorry for poor english