[mprev]

A note on liquid versus powder detergents. In the UK, at least, my understanding is that liquid detergents do not contain bleaching agents, whereas powders do. That is, unless you buy a colour-safe powder.

If you're pouring bleach into your machine, it can erode the rubber seals. I use Dettol instead (I think it's called Lysol in the States), which seems to do the job.

[sumtechguy]

A bit of bleach once and awhile is ok. There is even a spot for it to be put in on the detergent tray. I do not use it all the time. I stick to the powder and a cup or so of bleach every now and then on a clean cycle (once or twice a year). Pretty sure it is a color safe powder I am using.