Silt Out
Definition
A silt-out is a condition where fine particles are disturbed and suspended in water, reducing visibility to near zero.
More on Silt Out
Silt-outs occur when divers kick up sediment from the bottom, particularly in freshwater lakes, caves, or wrecks with loose or fine substrates. The result is a cloud of particles that can obscure vision and disorient divers. Proper finning technique, buoyancy control, and the use of guidelines are crucial in environments where silt-outs are likely. Training for overhead environments includes practicing exits with no visibility to prepare for such events.
Frequently Asked Questions
Improper fin kicks or contact with the bottom can stir up fine sediment, reducing visibility dramatically.
Use frog kicks, stay neutrally buoyant, and avoid contact with the bottom. Awareness of environment is key.
It can be, especially in overhead environments like caves or wrecks. Disorientation and panic are risks.
Stay calm, follow your guideline if present, use your compass or tactile navigation, and signal your buddy.
Less common, but possible in silty bays or around wrecks. More typical in freshwater or enclosed dive sites.