One question, a million answers. Can you give me advice? [View all]

[Paper Roses]

I have Googled and found too many answers.

I have a fabric shower curtain with a heavy duty liner(w/magnets). No mildew on either, just soap residue on the liner. I have tried to wash the liner in the machine but I think there must be something I can add to the cycle to clear the soap from the liner. My efforts look OK to begin with but as the liner drip dries, the soap residue still shows. This was an expensive liner and is in good shape. I want to make it look good but am finding no real solution. What do you use? I know this is just soap residue. Any suggestions as to what might dissolve it? I paid a lot for liner one with the heavy duty magnets, don't want to give up.
Thanks for any help.