The rating is precise about what it covers, and a pressure washer is not in it.
Tools required
Tool one, tool two.
Before you start
The warning that saves someone a repair bill.
Step 01 — What the numbers mean
What to do, and what it should look like when it is right.
Step 02 — What a winter of rain does
What to do, and what it should look like when it is right.
Step 03 — Where the water actually gets in
What to do, and what it should look like when it is right.
If it goes wrong
The two or three most likely mistakes and how to undo them.