How do I remove black marks at bottom of shower?

Leon
by Leon

The bottom of the shower is marked with black marks. We have tried everything to remove them, but nothing works. It gets lighter, but then the dark spots return. Thank you.

  5 answers
  • GrandmasHouseDIY GrandmasHouseDIY on Feb 12, 2019

    Hey Leon, have you tried The Works toilet bowl cleaner? This is not great advice because it is extremely toxic and I hate to use it as I go all natural in my home. However, with my incredibly hard water, I've had to break down and use it a couple of times to get off calcium deposits in my tub and toilets. I haven't found anything that it can't clean up yet! But be very careful with it!

  • Dwp7470b Dwp7470b on Feb 12, 2019

    Easy Off should work. It gets off Tough Burned on Grease.

  • CLR (calcium, lime, and rust) works great with a stiff brush

  • Brandy Brandy on Feb 14, 2019

    Have you tried Magic Eraser by Mr Clean? I swear by that thing!!

  • Lynn Sorrell Lynn Sorrell on Feb 14, 2019

    Is it mold? if you don't kill it ,it will continue to return.JUst wiping it off won't help. is it on tile surface,grout, around drain,coming from underneath you may have leak around drain undertile.