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1 Site. 2 Pressure. 3 Catch cans. 4 DU and precip rate. 5 Soil and ET. 6 Runtime and report. Every step gets its own pages: the drawing first, then the numbers you need, with worked examples. 65 illustrated pages.
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Every page has one big drawing and a box with the numbers and formulas you need to know:
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These are real pages from the book. The table of contents is the full one: 9 parts and 61 topics.
You're at the hose bib with a gauge on it and the zone off. You turn the zone on and the needle drops. Which number goes on the sheet?
The manual covered it in three paragraphs on flow, friction loss and elevation. You read it at night, and by morning it was gone.
In the book it's one page: the same point drawn twice. Valve closed: static. Zone running: dynamic, lower because of friction loss.
Every other topic works the same way: the catch-can grid, the lower quarter, precip rate, soil texture by feel, runtime with cycle and soak. Each one has its own page.
You look at the gauge, you know what you're reading, and you write down the right number without going back to the manual.
The audit job and the 6-step method, site inspection, pressure and flow, the catch-can test, DU, precip rate, soil and ET, scheduling and the report, and review and practice: 65 pages, all illustrated.
Think of it this way:
You're on an HOA's front lawn with 24 catch cans on the grid and the community manager watching. You need the DU before you leave the site.
You went over the DU page the night before: the cans drawn on the grass, the lower quarter marked in color, and the formula with every number in its place. You do the math right there, without opening the manual.
Same with static vs dynamic pressure, net PR from catch cans, soil texture by feel, runtime with the scheduling multiplier, and cycle and soak: each one on its own page.
Irrigation Auditor Illustrated is 9 parts and 61 topics, all drawn, with one complete worked audit, the formula page and the most frequent mistakes at the end.
What you see drawn, you don't have to memorize.
What an audit measures, the 6 steps in order, who asks for an audit, the field kit, US units, and gross vs net.
Reading the site, the controller, point of connection and backflow, sprays vs rotors vs impacts, matched precipitation, head-to-head coverage, and the defects checklist.
Static vs dynamic pressure, the pitot tube, the right pressure per head type, elevation, and zone flow from the water meter.
Picking the zones to test, laying the grid on spray and rotor zones, test conditions, reading mL, the filled-in field sheet, and spotting a bad test.
DU in one picture, the lower quarter in color, the formula, a worked example, rating the result, the usual causes of low DU, and the scheduling multiplier.
Precip rate in inches per hour, net PR from catch cans with a worked example, gross PR from GPM and area, square vs triangular spacing.
Soil texture by feel, infiltration vs precip rate, available water, MAD, ETo, plant factor and landscape coefficient, and hydrozones.
The base runtime formula, the multiplier, days per week, cycle and soak, seasonal adjustment, water budget in gallons, and the audit report.
One complete audit start to finish, the formula page, unit conversions, the most frequent math and field mistakes, and the audit day checklist.
At the end of the book: One complete worked audit, a formula page, unit conversions on one page and the most frequent math and field mistakes.
Practice every topic with exam-style questions and an explained answer for each one, so you find your weak spots before exam day.
All the formulas and unit conversions on a few printable cards you can keep in the truck and review in five minutes.
📄 This is a digital PDF book sent to your email: nothing is printed or shipped.
PDF by email: We email you Irrigation Auditor Illustrated as a PDF, together with the two free books. It's a single payment: no installments, no extra charges.
Every formula is drawn, with worked examples in inches, GPM and PSI, so the math stops being the part you dread.
The formula page, unit conversions and the most frequent math mistakes, to review in one evening. The practice book shows you your weak spots.
Print it and keep it in the truck to check the catch-can layout or the runtime math on site before you hand in the report.
📄 This is a digital PDF book sent to your email: nothing is printed or shipped.
Try Irrigation Auditor Illustrated for 30 days, bonus books included.
We refund everything if the file won't open, if the book isn't what you see here, if you were charged twice or if the email doesn't arrive. Just email us.
You pay once. No subscriptions.
Yes. It's not a beginner's gardening book. It assumes you know the systems and focuses on what the exam asks: the audit method and the math. Every formula comes with a worked example, step by step, with real numbers in inches, GPM and PSI: DU from catch-can readings, net and gross precip rate, runtime with the multiplier, and cycle and soak. There's also one complete audit worked from start to finish.
From the Irrigation Association's recommended audit guidelines and the published content outline for its auditor exam, cross-checked with EPA WaterSense specifications. ET examples use reference ET (ETo); in your state, use your local ET source (CIMIS in California, your state climate network elsewhere).
No. It's independent study material. It isn't published, endorsed or reviewed by the Irrigation Association, the EPA or any certifying body, and it doesn't give you a certification: you still register and take the exam with your certifying body. The book is for studying the method and the math before you go.
No. It's a book for studying and review. It doesn't replace an official course, hands-on field training or your certifying body's materials.
No. They're written for this book, in exam style, so you can practice each topic. They aren't official questions from any exam.
The book and the 2 bonus books come as PDFs by email, sent to the address you enter at checkout.
No. It's a one-time payment, with no subscription.
It's a PDF you can print at home or at a print shop, then keep in the truck.
You have 30 days. We refund everything if the file won't open, if the book isn't what you see on this page, if you were charged twice or if the email doesn't arrive: just email us.
No more rereading without anything sticking.
Static vs dynamic, DU and runtime: you see them drawn, and that's it.
You walk into the exam knowing where everything is.
Drawings make studying faster.
The book is right below.
One-time payment: US$ 27 · Guarantee: 30 days · PDF by email
YES, I WANT IRRIGATION AUDITOR ILLUSTRATED FOR US$ 27📄 This is a digital PDF book sent to your email: nothing is printed or shipped.
