Just a quick Tech Tip.
This video is showing the newer Whirlpool or Maytag front loading washing machine. When you give the tub a spin, as techs, we are used to not hearing really much of anything. However, when you give the tub a spin on this unit, you hear liquid and what sounds like marble banging around. This is normal. The sounds you are hearing is the balance ring which contains heavy oil and ball bearings to try to counterbalance an off-balance load.