Unlike basic switch testing (just pressing a key), the Aqua Key Test is done or after lubing to catch defects:

The Aqua Key Test is a diagnostic tool used to assess the water quality by measuring the presence of certain ions, specifically calcium and magnesium. These ions play a vital role in determining the overall hardness of water, which is a critical parameter in various industrial and environmental applications. The test is designed to provide a quick and accurate assessment of water hardness, allowing users to identify potential issues and take corrective measures.

: Unlike many other testing tools (such as PassMark), Aqua's KeyTest ignores "fake" keystrokes generated by scripts or macro programs like AutoHotKey. It only registers the actual electrical signals sent from the keyboard hardware. Usage Scenario