Toilet Tank?
Question:In a effort to save time I put one of those blue things in the tank so our weird water wouldn't leave a ring after one day. Took the lid off today to check why the "flusher" was falling off (another question) and OMG it was full of scum- this has never happened before. do those blue thigns cause scum in the tank?
Answers:
Yes they do cause quite a lot of scum!!
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