What the channel is for
Knowledge. Chemistry, contaminants, report reading, the test itself, and the business case for owners. Watch it before you come. It will make the three days go faster.
For owners and plumbers
Can't My Guys Learn This on YouTube? Why the Class Is Not on the Channel
I run the largest plumbing education channel on YouTube: more than 765,000 subscribers and 160 million views, teaching plumbers the things nobody taught me. So when an owner asks why his technicians cannot just watch the videos, it is a fair question, and I am the right person to answer it. If this class could be a video, I would have made the video.
A video can show a plumber what a test strip does. It cannot watch him run it in front of a stranger, and it cannot sign his credential.
Short answer
The Channel Teaches the Water. The Room Teaches the Plumber.
A video can teach a plumber what hardness is, how to read a city water report, and what the two pads on a chlorine strip mean. The channel does that for free and will keep doing it. A video cannot watch your technician run the test with a homeowner standing there, cannot hear him explain the number out loud, cannot grade him, cannot hand him a kit, cannot put a HALO unit in front of him, and cannot sign a credential. That is what the three days are for.
What the room is for
Doing it in front of people, being corrected, and being tested. Twenty seats, three exams, a kit in your hand, a unit you can touch, and your own numbers worked through with someone who holds the same license card you do.
What video does well
Start Here. It Is Free.
Everything a technician needs to know before day one is already written down on this site, with every number sourced, and most of it is on the channel too. Nobody should pay $5,000 to learn what a grain of hardness is.
The sixty-second water test
Report first, then hardness, total chlorine and total dissolved solids at the kitchen tap with the homeowner watching. Read it here.
What a grain of hardness is
17.1 milligrams per liter equals one grain per gallon, how to convert any city report, and what 5, 10 and 15 grains do to a water heater. Read it here.
Chlorine or chloramine
Free, combined and total chlorine, the two-pad strip, and why a free-only pad reads zero in a chloramine town. Read it here.
What scale does to a water heater
A tankless heater lost eight points of efficiency in 1.6 years on hard water, and the Saturation Index line on a report says whether a town deposits it. Read it here.
If your technician reads those four and watches the channel, he will walk into day one ahead of most of the room. He will still not be able to do what the room does.
What video cannot do
Seven Things the Room Does That a Screen Cannot
| In the room | What it is | Why a video cannot do it |
|---|---|---|
| Roleplay | Presenting to a homeowner out loud, in front of twenty people who will tell you the truth. | A video plays whether you did it right or not. Nobody stops the tape and says "say that again, and this time look at her." |
| Coaching on your numbers | The per-truck math run on your truck count, your dispatch average, your close rate and your pricing. | The calculator on this site gets you close. The room gets you corrected by someone who has done the work. |
| An exam every day | Three certification exams, one at the end of each day. The credential is earned, not attended. | Nobody fails a YouTube video. Nobody passes one either. |
| A kit in your hand | A complete water testing kit the technician keeps. It goes home with him on day three. | You cannot run a strip through a screen. |
| A unit in the room | A HALO system to see and touch on day two. Nothing is installed; this is a knowledge class. | Product knowledge from a brochure sounds like a brochure in a kitchen. |
| Twenty people, capped | The room stops at twenty because coaching and roleplay stop working past twenty. | A video has an audience of one, and the one is alone. |
| The instructor's card | A Texas Master Plumber at the front for all three days, holding the same license the room holds. | The comment section cannot answer a question about your market. |
What each day covers, and what the seat includes, is on the curriculum page. The "earned, not attended" line is from the fit call page.
Straight
What the Class Is, and What It Is Not
What it is
- Three consecutive days in a room of twenty, 8:00am to 5:00pm
- Water science on day one, product knowledge on day two, the sales day on day three
- An exam at the end of every day and the HALO Certified Water Quality Expert credential on day three
- A knowledge and presentation class for the people who run and grow plumbing companies
What it is not
- Not an installation class. Nothing is installed. Your technicians already know how to hang equipment.
- Not a webinar with 400 people and a chat box
- Not a plumbing license, and not a replacement for one
- Not an equipment purchase, a territory or a franchise. There is no minimum order and no exclusivity.
Why I built it
The Thing Nobody Taught Me
I treated water quality as somebody else's department for most of my career. I would get the question in a customer's kitchen, say something about looking into a filter, and move on to the job I came for. I have no idea how much money I walked past. It is a lot.
I built that channel teaching plumbers the things nobody taught me. This tour is that, in a room, for three days. The channel will always be free. The room is where a technician stops knowing about water treatment and starts selling it, and that is the part I could never get into a video.
Watch it
Roger on What He Wishes He Had Known
Questions
Questions Owners Ask About Learning It Online
Can a plumber learn water treatment from YouTube?
The knowledge, yes. Roger Wakefield's channel and the guides on this site cover water chemistry, reading a city report, the field test and the business case, for free. What a video cannot do is watch a technician run the test in front of a homeowner, correct him, test him, hand him a kit, or sign a credential. That is what the three-day class is for.
What does the HALO Water Tour class include that a video cannot?
Roleplay in front of twenty people, coaching on your own fleet numbers, a certification exam at the end of every day, a complete water testing kit the technician keeps, a HALO unit in the room to see and touch, and the HALO Certified Water Quality Expert credential awarded on day three.
Is the HALO Water Tour class hands-on?
Classroom, start to finish. Nothing is installed at any class and nobody needs to bring a tool. Attendees are licensed plumbers who already know how to hang equipment, so the three days are spent on everything that happens before the wrench comes out: reading the water, knowing the product, and selling the job.
Why is the class capped at twenty seats?
Because day three is coaching, roleplay and working your own numbers, and none of that survives a room of fifty people. Twenty is the largest room where every attendee still gets worked with individually.
Should my technician watch the videos before class?
Yes. Start with the four guides linked on this page: the sixty-second water test, grains per gallon, chlorine versus chloramine, and water heater scale. A technician who has read those walks into day one ahead of most of the room.
Sources
Where These Facts Come From
Checked in October 2026. Channel figures are Roger Wakefield's own counts across his channels as of 26 October 2026.
- Roger Wakefield Plumbing Education on YouTube (the channel; 765,000+ subscribers and 160 million+ views as of 26 October 2026, Roger's own count)
- About Roger Wakefield (credentials, the Texas Master Plumber license, the reason for the class)
- The curriculum (the three days, the exams, what the seat includes, why twenty seats)
- The fit call ("the credential is earned, not attended")
- The Dallas class (not a webinar, not an install class, no territory)
- For owners (no equipment purchase, no franchise, no royalty)
Written by Roger Wakefield, Texas Master Plumber
45 years in the trade and LEED AP. Published . More about Roger or visit rogerwakefield.com.
Keep going
Related Guides
The curriculum
Day by day, with exactly what the seat includes.
Water treatment certification for plumbers
Water Quality Association, Texas Water Quality Association and HALO side by side, with costs.
Who to send, by fleet size
One truck to thirteen, and what a seat really costs.
About Roger Wakefield
The instructor, the license and the channel.
Watch the channel for free. Then come get tested.
Three consecutive days, in person, twenty seats a city. An exam every day and the HALO Certified Water Quality Expert credential on day three. Dallas is November 3-5, 2026, and Carlsbad returns in early 2027 with the dates announced there first.