Generally, yes. In fact, they tend to eat PVC LESS than they eat iron or copper. But, doublecheck the bottles -- they usually say. And they do eat through the pipe a little.
A. Lab tests confirm that all Liquid-Plumr® products are safe for all household plumbing. However, we do not recommend using drain openers in rubber pipes. The products may damage rubber.
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Q. Are Liquid-Plumr® products safe for all pipes?
A. Lab tests confirm that all Liquid-Plumr® products are safe for all household plumbing. However, we do not recommend using drain openers in rubber pipes. The products may damage rubber.
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