Plumbing Basics, free class. Hands fit a white P-trap under a sink above a bucket. Panels: the P-trap assembly, tailpiece, J-bend, waste arm and a two-inch water seal; drain pitch of a quarter inch per foot; water supply versus drain-waste-vent; sealing, hand tighten plus a quarter turn and check for drips; tools, channel locks and a bucket; why it matters, it blocks sewer gas.

A Class · Global Sovereign University · Trades

Home Plumbing

The plumbing tree, the tools, the P-trap, clogs and disposals, faucets, toilets, the water heater, prevention, knowing when to call a plumber, and the codes behind all of it. Ten lessons, one per chapter of the book, all open. Free, no account, nothing to install.

Step one · Read

The chapter, broken into the separate ideas you will be asked to use. Read it, or have it read to you.

Step two · Work

A practice bench of real situations from the chapter. Pick the move the book would make, and a wrong pick tells you why. Then go find the same thing in your own house.

Step three · Prove

A new situation every attempt. Miss one and you are told why that choice fails, and sent back to the exact idea it was testing.

Your progress is kept on your own device. Nothing is transmitted and nobody is asked who you are. This class teaches homeowner plumbing; it is not a license, and it does not replace a licensed plumber for gas lines, the main sewer, or anything your local code requires a permit for.

The ten lessons

One per chapter, in the book's order.

    The Certificate of Comprehension

    Working the lessons is practice, and practice does not earn a certificate. The certificate comes from a separate exam of 30 questions, three from each lesson, graded on our server so no answer key ever reaches your browser and no score can be reported by the student.

    Score 80% or better and a serial-numbered certificate prints with a link anyone can use to verify it. It records comprehension of the book. It is not a plumbing licence or a qualification issued by any authority.

    Sit the exam Read the book free How to become a plumber

    Home Plumbing Basics — cover

    The book behind the class

    Home Plumbing Basics was written by our founder, Dr. Gene A Constant, and donated to the Foundation. Published by Global Sovereign University Press. The class is free. The book is how the Foundation pays for it.

    Buy a copy — it funds a free seat

    Global Sovereign University is a 501(c)(3) nonprofit and book sales are its only income. A purchase is not a tax-deductible donation.

    Questions about the class

    Is the Home Plumbing class free?

    Yes. All ten lessons are free, with no login and no paywall. The class is taught from Home Plumbing Basics by Dr. Gene A Constant; buying the book is how the Foundation pays for free classes like this one, and it is never required.

    What does the class cover?

    One lesson per chapter of the book: decoding your home's plumbing system, the essential DIY toolkit, the P-trap, clogs and disposals, faucet fixes, toilet troubles, water heater maintenance, proactive plumbing, knowing when to call a plumber, and plumbing codes and regulations.

    How is each lesson built?

    You read the chapter's ideas, work a practice bench of real situations from the chapter, then answer questions about new situations. Miss one and you are sent back to the idea it was testing. Your progress is saved in this browser only.

    Is there a certificate?

    Yes. A separate, free exam of 30 questions, three from each lesson, is graded on our server. Score 80% or better for a Certificate of Comprehension with a serial number anyone can verify.

    Does this class make me a licensed plumber?

    No. It teaches homeowner plumbing from the book. It is not a licence, apprenticeship or trade qualification. The book itself teaches when to call a licensed plumber, and lesson nine covers exactly that.

    Accreditation notice: Global Sovereign University is not an accredited institution and does not grant degrees, academic credit, licenses, or industry credentials. Learners who pass GSU's online exams earn GSU certificates of comprehension.