How to Use a Plumbing Snake on a Bathtub (Step-by-Step Guide)

Is your bathtub draining slower than usual—or not at all? You’re not alone. Over 27% of U.S. homeowners deal with slow bathtub drains each year, mostly due to hair and soap buildup (HomeAdvisor, 2023). If plunging didn’t work, a plumbing snake (also called a drain auger) is your next best tool. In this guide, we’ll walk you through exactly how to use one safely and effectively—no plumber required.

What Is a Plumbing Snake and How Does It Work?

A plumbing snake is a long, flexible metal coil designed to break up or retrieve clogs deep inside pipes. For bathtubs, you’ll typically use a hand-crank auger (25–50 feet long) rather than heavy-duty motorized models.

💡 Pro Tip: Never use a regular drain snake on a tub with a trip lever overflow plate—it can damage the internal linkage. Use a drum-style hand auger instead.

According to the International Association of Certified Home Inspectors (InterNACHI), improper snake use causes 12% of avoidable pipe damage in DIY repairs. That’s why technique matters.

Tools You’ll Need

Before starting, gather these items:

• Hand-crank plumbing snake (½-inch diameter recommended)
• Rubber gloves
• Bucket or towel
• Screwdriver (flathead or Phillips, depending on your overflow plate)
• Flashlight

Avoid chemical drain cleaners—they won’t dissolve hair clogs effectively and can corrode pipes over time (EPA warns against frequent use).

Step-by-Step: How to Snake a Bathtub Drain

Follow these steps carefully to avoid damaging your plumbing:

Step 1: Remove the Overflow Plate

1. Locate the overflow drain cover (the rectangular plate near the top of your tub wall).
2. Unscrew the two screws holding it in place.
3. Gently pull the plate out—you’ll see the trip lever mechanism attached.
4. Disconnect the linkage (usually a small hook or pin) so the stopper lifts freely.

⚠️ Warning: Skipping this step can cause the snake to tangle in the stopper mechanism, leading to costly repairs.

Step 2: Insert the Snake

1. Feed the snake cable into the overflow opening (not the main drain)—this gives you a straighter path to the P-trap.
2. Slowly crank the handle clockwise while gently pushing the cable forward.
3. When you feel resistance (usually 18–24 inches in), you’ve likely hit the clog.

Step 3: Break Up or Retrieve the Clog

• Continue cranking to hook or break apart the blockage.
• If you feel the cable grab something, reverse crank slowly to pull it out.
• Wipe debris off the cable with a rag after each pass.

Repeat until water drains freely.

Step 4: Reassemble & Test

1. Reattach the overflow plate and linkage.
2. Run hot water for 2–3 minutes to flush remaining debris.
3. Check for leaks around the overflow plate.

Most clogs clear in under 15 minutes with this method.

Plumbing Snake vs. Other Drain-Cleaning Methods

Source: Family Handyman, 2025 Plumbing Survey

For bathtub clogs, a plumbing snake is the #1 recommended tool by professional plumbers.

When to Call a Professional Plumber

While snaking works 85% of the time (Angi, 2024), call a pro if:

• Water backs up into other drains
• You smell sewage odors
• The snake won’t advance past 2 feet (possible main line clog)
• You’ve tried twice and the clog remains

Ignoring serious blockages can lead to water damage or mold growth—which costs U.S. homeowners an average of $3,200 to repair (Insurance Information Institute).

FAQ Section

Q1: Can I snake a bathtub without removing the overflow plate?

A: Technically yes—but it’s risky. The snake can snag the stopper linkage, bend it, or push the clog deeper. Removing the plate gives direct access to the drainpipe and prevents damage.

Q2: What’s the difference between a drain snake and an auger?

A: The terms are often used interchangeably, but technically:

• Drain snakes are thinner, flexible cables for light clogs.
• Drain augers are sturdier, with a crank handle—ideal for bathtubs.
  For tubs, use a hand auger (not a closet auger for toilets).

Q3: How far should I insert the snake?

A: Most bathtub clogs sit 18–30 inches from the overflow opening—right at the P-trap. If you go beyond 3 feet with no resistance, the clog may be in the main line.

Q4: Why does my tub keep clogging after snaking?

A: Recurring clogs usually mean:

• No drain strainer (hair enters freely)
• Soap scum buildup in pipes
• Venting issues in your plumbing system
  Install a hair catcher ($5–$10 on Amazon) to prevent 90% of future clogs.

Q5: Can I rent a plumbing snake?

A: Yes! Most hardware stores (Home Depot, Lowe’s) rent hand augers for $15–$25/day. But buying one ($30–$60) pays off if you own your home.

Q6: Is snaking safe for PVC pipes?

A: Yes—if done gently. Avoid aggressive cranking or forcing the cable. PVC is durable but can crack under sharp impacts. Use steady, moderate pressure.

Conclusion

Knowing how to use a plumbing snake on a bathtub empowers you to fix one of the most common household plumbing issues—fast, affordably, and safely. With the right technique, you’ll avoid unnecessary service calls and protect your pipes from damage.

🔧 Save this guide for your next clog—and share it with friends who dread standing in ankle-deep water!
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