Can I wash a plastic shower curtain in the washing machine?
The fabric one should wash up fine. I have washed plastic shower curtain liners and sometimes they wash up well and other times, they shred into a million plastic ribbons. I would use a warm wash (to keep the plastic pliable) and watch it, or check it often. Use a gentle cycle, too. I think that it depends upon the curtain liner — the heavier vinyl-plastic ones probably wash better than the cheaper plastic ones. I quit trying to wash them and I have to just replace ours periodically. Good luck.