Before revision: Conversion between an open and a closed lake If the amount of water entering a closed lake is increased beyond a certain level - for most closed lakes far more than would normally enter the lake - it is possible that the water level in the lake would rise so much that the lake would no longer be capable of containing it.
After revision: Conversion between an open and a closed lake If the amount of water entering a closed lake is increased beyond a certain level — for most closed lakes far more than would normally enter the lake — it is possible that the water level in the lake would rise so much that the lake would no longer be capable of containing it.