Asked on Nov 6, 2019

How can I clean calcium deposits & hard water stains from fiberglass?

Dianacirce70CindyAnn|The  Apple Street Cottage


5 answers
  • GrandmasHouseDIY
    on Nov 6, 2019

    Hi Kelly, I had a remodel with an old fiberglass shower that was NEVER cleaned. After hitting it with The Works toilet bowl cleaner I also used a razor blade and that finally took it all off!

  • Here's what I use:

    Fill a spray bottle with a 50/50 solution of Dawn dish soap and vinegar. Spray it on the hard water stains and let it work. If they are tougher stains, you may have to scrub with a plastic scrubbie!

  • Cindy
    on Nov 7, 2019

    I agree with Ann. Equal parts of vinegar and water. You could also soak a rag in this mixture and wrap it to fit handles and spouts.

  • Dianacirce70
    on Nov 11, 2019

    Vinegar and a mild scrubber usually gets that right off!

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