PRESSUREWASHRTHE COURTYARD ↗

01 TEST FIRST

THE TEST PATCH

A LIGHTER TOUCH↔ FOLLOW THE GRAIN
PATCH CLEAN
0%
WOOD INTACT 100%WITH GRAIN —
Try a broad fan. Sweep left and right across the marked patch.
REAL-WORLD GUIDE ↗

PRACTICE JOB / WOOD DECK

KEEP
THE GRAIN.

A small test patch. A gentler touch.
Then a whole deck to bring back to life.

  1. Try a fan on the marked patch.
  2. Inspect the wood, not just the dirt.
  3. Sweep with the grain to finish the deck.

Simulated weathered boards, fixed washer setup. Real wood needs its own care instructions and a test patch.

READ THE WOOD DECK GUIDE ↗
LEARN BY DOING FIELD NOTES / 001

PATCH INSPECTION

A LIGHTER TOUCH.

CLEAN100%
WOOD INTACT100%
WITH GRAIN100%

TAKE IT OUTSIDE: READ THE GUIDE ↗

FIELD NOTES / WOOD

A LITTLE
KNOW-HOW.

01

Test first.In this simulation, narrow jets and prolonged contact roughen the boards. A broader fan and steady movement help preserve them. Reset the patch to compare tips.

02

Follow the grain.The boards run left to right. Use overlapping horizontal passes. Wood intact measures unmarked area; with grain measures the share of spray applied while moving along the boards.

03

Inspect before continuing.Pass the test with at least 97% wood intact and 55% of spray along the grain. These are game goals, not real-world safety thresholds.

Real wood varies by species, treatment, and condition. Follow the board and washer instructions; a brush-and-hose clean may be appropriate. Kärcher’s wood-care guidance ↗

SEE THE NOZZLES / SIMPSON CLEANING

Quick-connect tip overview from the manufacturer. General nozzle reference; the lesson’s wood response is simulated.

Watch on YouTube ↗YouTube loads only when you choose the video.

KEYBOARD Arrows to aim · Space to spray · 1–4 to switch tips · R to reset · Escape to pause