198
people found this helpful, as of 2023
ranked #164,373 most helpful
out of 571,544,897 reviews
★★★★★
Cleans like a Champ!
After reading online, I decided to purchase Citric acid in hopes to clean the rust from our toilet tank caused by mineral deposits in our hard water. I emptied the toilet, filled with a bucket of hot water and one cup of citric acid, then left alone for 3 hours. Here's the results after flushing. I could not believe how well this worked!
June 2019 · Grocery and Gourmet Food · verified purchase