Black deposits in low flow toilets
Posted by Bev Jenkins on July 22, 2001 at 10:21:55:
Has anyone else experienced a problem with nasty black deposits at the waterline in the bowl of a low flow toilet? Ever since my apartment bldg replaced our old toilets with the low flows, I've had these black deposits appearing almost daily. I thought they were mildew stains, but mildew removers like X-14 have no effect. They come off easily with scrubbing, but I've found no way to keep them from coming back. What causes them? What can I do to prevent them?


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