I stopped using pods/packs/powerballs types and pre-scrubbing after this video. I thought cheaper liquids just didn't work, because I wasn't filling the pre-wash. I tried cheaper store brand liquid detergent with pre-wash, and with pre-wash gels work great.
Right now, I'm using Cascade Gel, really happy for the price and amount. 6 bux. It's the same price as generics if you don't buy it on amazon.
TIL, use the pre-fill