Chapter 7 of 718% of exam

Safety

Safety is about 18% of the C-53 exam: the safety of the finished pool and spa, and the safety of the job site. This page is a short survey; the PrepPass C-53 Swimming Pool study guide teaches each knowledge statement with worked examples and a full practice exam at CSLB's weights.

Pool and spa safety

Layers of protection against drowning, entrapment and shock.

Features
At least two of seven at a private single-family home.
Health and Safety Code §115922
Enclosure
60 inches high, 2-inch bottom gap, 4-inch sphere, gate latch at least 60 inches high.
Health and Safety Code §115923
Suction
Two balanced outlets 3 feet apart; covers removable only with tools.
Health and Safety Code §115928

Job site safety

IIPP, excavation, heat, silica and overhead lines.

Heat
Shade above 80 degrees; high-heat procedures at 95; one quart of water per hour.
Title 8 §3395
Silica
PEL 50 and action level 25 micrograms per cubic meter.
Title 8 §5204
Overhead lines
Treat as energized; 10 feet for booms and storage up to 50 kV.
Title 8 §2946

Keep going: the full CSLB C-53 Swimming Pool guide covers every section of the exam. CSLB C-53 Swimming Pool Study Guide — 2026 Edition — PDF + EPUB, $24.99 · 14-day refund →

Want the 6-page colour cheat sheet to print for exam week? CSLB C-53 Swimming Pool cheat sheet PDF — $9.99 →

Practice this topic →← All chapters
Studying in order?

Practice stays free. The full CSLB C-53 Swimming Pool study guide is the material itself, taught start to finish — a downloadable PDF + EPUB you keep.

Get the book — $24.99