Do i have to use a plastic liner with 100% polyester shower curtain to keep the water in?

Do i have to use a plastic liner with 100% polyester shower curtain to keep the water in?

just use WD40. It helps

I don't mean any harm or disrespect to you but wouldn't it make sense to use a plastic liner with any cloth curtain for a shower? Unless the polyester shower curtain is waterproof, then use the plastic liner! And please think about what your asking before you ask it! You answered your own question from the start!