Online course

Water Operator Math Course

Math is where most operators lose the exam. This course is how you pass it.

They hand you the formula sheet in the exam, so it was never about memory. It is about knowing which formula the question wants, getting the units to match, and rearranging it without panicking. That is what these eleven modules drill. It is a water treatment math course that covers distribution math too, so it works whichever license you sit for.

Pass or your money back, good for a full 6 months
$49
one time, lifetime access
Under $5 a module
Enroll for $49 Watch Module 3 free

Why this gets you through the math

Of every category on the free practice tests here, operator math is the lowest scoring one. This course was built to fix exactly that.

Course slide titled One formula, three ways to ask it, showing time equals volume divided by rate worked against an exam-style question

It drills the questions operators actually miss

Every module is built from the real math questions in the practice banks on this site. You learn each formula and the three ways the exam asks for it, not a general math refresher.

Handwritten worked solution finding detention time for a 40 by 20 by 12 foot basin, ending at 0.24 days

You watch every problem worked by hand

Not a slide of answers. Each problem is set up and solved on paper, every step down to the boxed answer, the way you will work it in the exam room.

A quiz question asking for the brake horsepower of a 78 percent efficient pump, with the explanation naming the mistake behind each wrong answer

You find your mistakes before the exam does

A quiz after each of Modules 1 through 9, 74 questions in all. Every wrong answer is a mistake operators really make, and the explanation tells you which one you made.

The three page Water Operator Math formula sheet

You practice the way you will test

A 3-page formula sheet ordered by module, built to print and keep beside you while you study, the way you will have one on exam day.

Try it first: Module 3 is free

The pounds formula, the single most tested idea on the exam, worked start to finish. A whole module out of the course, not a trailer.

Liked that? The other ten modules teach every formula the same way. $49 one time, lifetime access, pass or your money back.
Enroll for $49

The eleven modules

0  How to beat operator math
1  Foundations and conversions
2  Areas and volumes
3  The pounds formula FREE ▶ Watch
4  Flow, rate and time
5  Disinfection math and CT
6  Flow, velocity and area
7  Loading rates
8  Wells and source
9  Pumps and hydraulics
10  Test day
Albert on site in a hard hat and hi-vis vest, a storage tank behind him

Who is teaching it

I’m Albert, a water plant manager who has been licensed in Texas, Florida, Virginia and Delaware. I have sat these exams myself, and I helped write the 4,300+ practice questions on this site.

I built this course first because after thousands of tests taken here, the data said math is where operators needed the most help. Together we’ll walk from the basics all the way through the advanced operator equations.

And you are not on your own. Stuck on a problem, from the course or from your own study guide? Email it to me. I’ll work it out by hand and send it back.

Get the whole course for $49

One payment, lifetime access. Less than $5 a module.

Enroll for $49

Pass, or your money back. If you sit your exam and do not pass, or the course just is not for you, email me at contact@wateroperatorpracticetest.com within 6 months and I will refund every dollar. No proof of your exam result needed.

Not ready yet? Practice the math free on the operator math practice test or the wastewater operator math test, or browse every practice test.