The problem is not a regular washing machine vs. a front loading/HE. I have used both and it made no difference, even with a sanitary cycle. However, the advice to use 1 cup vinegar to 1/2 cup borax did work; however, on one towel it didn't work, and we replaced it. We live on a levee road that runs along a river and you can smell that river water when the tap flows - more so with the cold water than the warm/hot. In our case, the problem is our water as I never had this problem in other homes that I have lived in. It has nothing to do with the closet that they are stored in, but, I believe, is all related to your water system. If you are in N. CA, then the towns of Davis, Elk Grove, and Carmichael all have some of the worst water. You can get a carbon filter for your shower, to help with your head hair and diminsh the harmful chemicals in the water. Dr. Oz had a program on recently about things we need to be doing to better filter our water (on channel 58 in the morning and channel 3 at 3:00 pm), and you can acess tips from the program online. Hope it all helps, K.