Combat Dive Closed Circuit Diving Fundamentals Practice Exam

After a CCR dive, thorough post-dive maintenance keeps the system ready for the next use and protects the gear. Rinsing with fresh water removes salt, chlorine, and contaminants that can corrode components and foul the CO2 absorbent, then drying completely prevents mold and corrosion. A careful inspection for leaks or damage on hoses, fittings, and seals catches issues before they become big problems. Replacing the scrubber as needed maintains the unit’s CO2 absorption performance, since the absorbent has a finite life. Recharging the batteries ensures the electronics and back-up systems are ready for the next dive. Logging usage helps track how long components have been in service and plan future maintenance. Scheduling service per manufacturer guidelines keeps the entire system tested and certified for safe operation. Using seawater for rinsing or skipping rinse, keeping the scrubber unchanged, or storing without rinsing can lead to corrosion, contamination, and degraded performance, reducing readiness for the next dive.