Keeping a spool under control
A surface marker buoy is only useful if its line runs freely.
Safety and training
General field notes, not a dive plan. Stay within your training, follow local site rules and the operator’s briefing.
Field observation
Practice deployment with an instructor in suitable conditions. Keep line clear of valves, fins and buddies; never clip a running line to yourself and never let a snag pull you upward.
A practical approach
Inspect spool, line and buoy before entry; if it tangles, stop, maintain buoyancy and use your trained response rather than fighting it.
Dive-day checklist
Before you go
- Check local conditions and access rules
- Agree limits and the exit with your buddy
- Stop or change the plan if conditions differ
General guidance only. Follow your training, the dive operator’s procedures, and each manufacturer’s current instructions.
Ask the dive guide
Personal guidance for your next dive
Describe a dive scenario or an equipment-care question. The guide answers in your language and points you to relevant journal articles.
General educational guidance only. It is not medical advice, emergency instruction or a replacement for training, certification, manufacturer instructions, your operator's briefing or your dive plan.