It may be a govt requirement, or it may be a marketing ploy to advertise low water usage/costs, but the NORMAL cycle adds a ridiculously small amount of water...not even enough to fully wet the clothes. It's easy enough to bump that up with Deep Wash and Water Plus options, but you shouldn't have to.  The agitation of this impeller style is very gentle.  If you are expecting to see your clothes vigorously rolling during the cycle you will be disappointed.