Professional licensed plumbers universally recommend mechanical cleaning methods—such as using a plastic zip-it tool, a hand-cranked drain auger (snake), or a wet/dry shop vacuum—rather than harsh chemical drain openers. Chemical liquids often fail against dense hair clogs and can pit metal pipes or damage PVC glue joints over time, whereas physical removal completely extracts the root cause of the blockage safely. Verification: Test drainage flow by running the shower tap at full volume immediately after clearing the line.
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