Asked on Aug 22, 2017

Black chunks and film in a toilet bowl?

by Mimi
Hello: we added a powder room, the plumbing is PEX. Now the toilet when you flush it has black chunks of heaven knows what that comes down from under the rim and after a few days a blackish grey film appears on the bowl what is causing this, how do I get rid of it??!!!!

  7 answers
  • Ginger Galloway Ginger Galloway on Aug 22, 2017

    Sounds like mold. I would spray a bleach cleaner under there and then get the kind that goes in the tank (with bleach) that will release with each flush.

  • Mimi Mimi on Aug 22, 2017

    Yes I have done that and the gunk still exists!!!! Thank you for your help!!!!!!

  • Karen Morin Karen Morin on Aug 22, 2017

    It could be from hard water like mine. I pour a few inches of vinegar in the tank and it comes clean. It is an ongoing issue. Once it is clean, maintenance is about once a month. Scrubbing does no good, nor does bleach.

  • Ljh28870977 Ljh28870977 on Aug 22, 2017

    There is a new product on the market to take care of that, but I used two denture tablets in mine last night, when I flushed this morning, didn't see any black flakes. I don't usually buy pop, but I bought a carton of diet pepsi, I hated it so gave it to my handyman. Had one in the fridge. Poured it in the commode and left it over night. Gads what a good job that did. no scrubbing.

  • Mimi Mimi on Aug 22, 2017

    I will give that a try, even though I do not have that problem in the main bathroom that has copper piping going to it!!! Thank you so much!!!

  • Sharon Sharon on Apr 02, 2018

    Sounds like mold to me. Put white vinegar in your tank to clean out the tank and toliet bowl. Do daily until it disappears. Then I would add one of those tank tablets to keep it clean.

  • William William on Apr 02, 2018

    The black chinks and film are caused by the presence of iron and manganese. Copper tends to neutralize the manganese. It's possible the PEX manifold and/or connectors have manganese in them. Would need to be replaced with copper or brass.