Verdigris in bathtub drain?
May 27, 2010 9:58 AM Subscribe
How to treat the bright green deposit in my bathtub drain?
posted by Iridic to home & garden (10 answers total) 2 users marked this as a favorite
While cleaning my bathtub from an unusual angle, I noticed quite a lot of brilliant green beneath the crossbar trap in the drain. I plumbed the drain with a wad of paper towel, which came back smeared with a bright turquoise deposit. Verdigris, I assume - which surprises me, because I'm in a relatively new building and I didn't think any of my plumbing was copper.
Whatever it is, how do I clean out or neutralize the green? This is a matter of a little concern, because despite regular and vigorous plunging my tub remains a slow drainer, and water (probably with a bit of that poison-green stuff dissolved in it) will occasionally back up and wash over my feet during showers.