My toilet seems to accumulate stains below the water-line. Sometimes there are what looks like black mould strings. Sometimes the waterline is brownish. This happens even when I clean it with a bleach.
Md Ariful Islam
বিএসসি(সিএসই)
,
এমবিএ(মার্কেটিং)
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Dr. Md Rushad Rahman
এমবিবিএস(আরপিএমসি)
,
পিজিটি(মেডিসিন)
If the stain is happening at the waterline, it may be limescale. This can be removed by scrubbing the stain with a pumice stone.
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