A persistent waterline stain often comes from hard-water minerals, not poor housekeeping. Start with routine cleaning, then flush thoroughly to clear away the product before trying another. If discoloration remains, lower the bowl’s water level if possible and apply a toilet cleaner formulated for mineral deposits. Follow its instructions, allow the recommended contact time, gently brush, and flush. A second treatment may help more than aggressive scrubbing.
That Gross Yellow Ring? Here’s How I Actually Got Rid of Toilet Stains
