What type of detergent should I use, and can I use regular detergent?

You should use only low-sudsing, high-efficiency (HE) detergent such as Tide® HE. Using too much detergent is a common cause of laundry problems, and oversudsing can lead to detergent residue being left on clothes or even leaks. You can use less detergent if you have soft water, a smaller load, or a lightly soiled load. (Page 8, 10)