How Do I Clean Brown Scale From Plastic Pots?

Question

I have African violets that sit on a plastic shelf in a water reservoir. The edges of the shelf are encrusted with a brown build up. I have tried soaking them in vinegar and vinegar/baking soda mixture. I have scrubbed them with Bar Keepers Friend and scrubbing pad. While I have removed some of it, most of it stubbornly remains. Is it time to replace them?

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Answer 1

We don't make product recommendations, but if the tips below don't help, replacement could be your best bet.

https://hortnews.extension.iastate.edu/1994/3-16-1994/clean.html

You might also try baking soda alone, mixed with enough water to make a paste, then apply to stain. Wait about 30 minutes, then rinse.