How do I clean an old fiber bath/shower insert? Its old w/ stains.

I have an old Fiber bath/shower insert that had /has stains. I want to sell the house but I need to try to remove these stains. Any ideas? Please and Thank you
  7 answers
  • Janet Pizaro Janet Pizaro on Jan 21, 2017
    What are the stains?
  • Lorlq Lorlq on Jan 21, 2017
    try the vinegar and baking soda paste or try Magic eraser depending on the stains

  • William William on Jan 21, 2017
    Easy Off No Fume Oven Cleaner in the BLUE can. Spray the tub/shower down. Set it foam and set for about 30 minutes. Then rinse.
  • Johnchip Johnchip on Jan 21, 2017
    Last ditch you can use some muratic acid diluted wash.
  • Sallie Wolff Sallie Wolff on Jan 22, 2017
    Where I use to live we had very heavy iron in our well water we used Zud cleaner it worked amazingly.
  • Hillela G. Hillela G. on Jan 22, 2017
    Try vinegar and baking soda mixed with dish detergent
  • L.K. Ober L.K. Ober on Jan 24, 2017
    Use automotive polishing compound and buff the entire surface. This will remove the stains and water spots. Then use an automotive paste wax. Your fiberglass will look like new.