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What Causes a Slow Shower Drain Without a Complete Clog?

A slow shower drain usually points to a partial blockage, not a full clog. Common causes include hair and soap-scum buildup, biofilm in the P-trap, mineral scale from hard water, and small items caught under the strainer. Venting issues can also slow draining. In Las Vegas homes, heavy buildup may call for hydro-jetting or rooter service. If it keeps returning, consider a camera inspection to “Know Exactly What is Clogging Your Las Vegas, NV Plumbing,” or get a full camera inspection for $99.


Updated: 2025-12-24


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