I wash my cashmere sweaters by filling a small pail with some cold water and putting a very light amount of soap in it, then mix up the soap until there is very little suds (and no concentrated soap anywhere), and then dip the sweater into it and swish it around a bit. Then I take the sweater out quickly, and rinse it about 3 or 4 times with clean cold water. I then fill a different pail with cold water (no soap) and put my sweater in the new pail of clean water to soak for about 10 minutes. After that, I pull the sweater out, ring it gently a few times, and then lay them flat on a thin towel (which we lay on a table) on our back deck (it is a covered deck) overnight to dry. Sometimes it takes up to 36 hours to dry. Believe it or not, this tends to do a better cleaning job than machines, and my cashmere sweaters last a LOT longer. I dry them on a towel because I found that if I hang-dry the sweaters, they tend to stretch a bit and lose their shape. If I lay them flat on a towel, they tend to keep their shape very well over a long period of time. It does not require much soap at all. I hardly use any. If you use too much soap, it will not rinse completely.