For awhile I was using HE and low sudsing soap and I was happy that I was not battling so many suds. Well, for the first time we got stinky build-up! At first I was perplexed but then it dawned on me that residue was still sticking around although i could not see it because the suds (what little there were) rinsed away so easily. I don't know if this has happened to anyone else but i thought it was definitely worth mentioning for anyone wondering why they have stink and no bubbles.