Struggling with a leaky faucet, clogged drain, or a full bathroom remodel? You’re not alone—68% of U.S. homeowners attempt at least one plumbing project annually, often without proper guidance. That’s where Plumbing Complete: Expert Advice From Start to Finish by Rex Cauldwell becomes your go-to resource. This practical, step-by-step manual bridges the gap between beginner confusion and professional confidence—giving you the knowledge to tackle projects safely and correctly, the first time.
Who Was Rex Cauldwell, and Why Does His Plumbing Book Still Matter?
Rex Cauldwell (1943–2022) was a master plumber, licensed contractor, and prolific author known for translating complex plumbing codes into clear, actionable advice for everyday homeowners. Unlike dense codebooks or oversimplified online hacks, his book Plumbing Complete blends real-world experience, local code awareness, and safety-first principles.
His approach aligns perfectly with Google’s E-E-A-T guidelines (Experience, Expertise, Authoritativeness, Trustworthiness)—a standard increasingly critical for ranking high-quality DIY content. In fact, the book has remained a top-selling plumbing guide on Amazon for over 15 years, with 4.7/5 stars from 1,200+ verified buyers.
“Rex didn’t just tell you how to fix a pipe—he explained why certain methods prevent future disasters,” says Mike D., a licensed plumber in Colorado who used Cauldwell’s book during his apprenticeship.
For more context on plumbing standards in the U.S., see the International Plumbing Code overview on Wikipedia .
What’s Inside Plumbing Complete? A Chapter-by-Chapter Breakdown
Cauldwell’s book is structured like a mentor walking you through your home, room by room. Key sections include:
- Understanding Your Home’s Plumbing System: From main shutoff valves to vent stacks.
- Tools & Materials: What you actually need (no gimmicks).
- Fixing Common Problems: Leaks, clogs, low water pressure.
- Installing Fixtures: Toilets, sinks, showers, water heaters.
- Drain-Waste-Vent (DWV) Systems: Often the most misunderstood—but critical—component.
- Code Compliance Tips: How to avoid failed inspections.
Unlike generic online tutorials, Cauldwell emphasizes local code variations—because what works in Arizona may violate regulations in Massachusetts.
Step-by-Step: How to Fix a Leaky Faucet (Per Cauldwell’s Method)
Even a minor drip wastes 3,000+ gallons of water per year (EPA). Here’s Rex’s streamlined 5-step process:
- Turn off the water supply under the sink (or at the main if no local shutoff exists).
- Plug the drain to prevent losing small parts.
- Disassemble the faucet using the correct screwdriver or Allen wrench—never force it.
- Replace worn cartridges, O-rings, or washers (take old parts to the hardware store for matching).
- Reassemble carefully, then slowly turn water back on to test.
Pro Tip: Cauldwell insists on using plumber’s grease on new O-rings—this extends seal life by up to 3x.
DIY vs. Hiring a Pro: When to Call a Licensed Plumber
Cauldwell was a strong DIY advocate—but with limits. Use this decision table:
| Faucet or toilet repair | ✅ Yes | Minor water waste |
| Installing a new sink | ✅ Yes | Moderate leak risk |
| Water heater replacement | ❌ No | Gas leaks, scalding, code violations |
| Main sewer line clog | ❌ No | Health hazard, structural damage |
| Rerouting DWV pipes | ❌ No | Venting failure → sewer gas backup |
If your project involves gas lines, sewer mains, or structural modifications, always hire a licensed plumber. Cauldwell stresses: “Your safety isn’t worth $200 in labor savings.”
Why This Book Outperforms Online Plumbing Videos
While YouTube tutorials are abundant, 58% lack code references or safety disclaimers (HomeAdvisor, 2024). Cauldwell’s book offers:
- Accurate, code-aligned diagrams (not shaky phone footage).
- Troubleshooting flowcharts for diagnosing issues.
- Material compatibility charts (e.g., copper vs. PEX vs. PVC).
- Permit guidance for major renovations.
Plus, unlike a 10-minute video, the book remains accessible offline—no buffering during a midnight plumbing emergency!
Common Mistakes Beginners Make (And How to Avoid Them)
Based on Cauldwell’s warnings and real homeowner surveys:
- Ignoring the permit requirement → Leads to failed home inspections.
- Over-tightening fittings → Cracks pipes or strips threads.
- Skipping the pressure test → Hidden leaks cause mold.
- Using mismatched materials → Galvanic corrosion between copper and steel.
His golden rule: “Measure twice, cut once—and test before you close the wall.”
FAQ Section
Q: Is Plumbing Complete suitable for total beginners?
A: Yes! Cauldwell writes for homeowners with zero experience. He explains terms like “trap arm” or “water hammer” in plain English and includes full-color illustrations.
Q: Does the book cover modern materials like PEX tubing?
A: Absolutely. The latest edition (2021) includes updated sections on PEX, push-fit connectors, and tankless water heaters—plus how to integrate them with older copper systems.
Q: Can I use this book to pass a plumbing inspection?
A: While it’s not a substitute for your local codebook, it teaches you how to interpret code requirements and prepare for inspector visits. Always verify with your municipal building department.
Q: Where can I buy Plumbing Complete by Rex Cauldwell?
A: It’s available on Amazon, Barnes & Noble, and major hardware retailers like Home Depot. Look for ISBN 978-1580172301 to ensure you get the correct edition.
Q: Did Rex Cauldwell update the book before he passed away?
A: Yes. The 2021 edition was his final revision, incorporating feedback from readers and plumbers nationwide. It remains the most current version.
Q: Are there video companions to the book?
A: No official videos exist, but many plumbing educators (like This Old House) reference Cauldwell’s methods in their content due to his trusted reputation.
Conclusion
Plumbing Complete: Expert Advice From Start to Finish by Rex Cauldwell isn’t just another DIY manual—it’s a legacy of safety, clarity, and empowerment. Whether you’re fixing a dripping tap or planning a full bathroom renovation, this book gives you the confidence to do it right, avoid costly mistakes, and stay compliant with U.S. plumbing standards.
If this guide helped you, share it with a friend tackling their first home project! 💧
➡️ Tag someone who just bought a fixer-upper!
➡️ Save this page for your next plumbing emergency.
Remember: Great plumbing isn’t seen—it’s felt in peace of mind.
Leave a Reply