Not sure about your 17T, but most curtains are stapled to a cornice which it screwed in place. The cornice is covered with a fabric which is also stapled. To wash those curtains, you would have to remove the cornice, remove the staples holding the curtains wash then reinstall in reverse order. Or, you could sew new fabric curtains in a different color scheme and update. My DSO and I have carried our sewing machine for just such changes when the weather turns bad or we're just bored.
2703 Tow Lite
Bonita Springs, Fl. &