A Man Fell Into A Kvass Cistern

A man fell into a kvass cistern in a citric acid factory. His workmates promptly removed the stop to let the drink out, and reported to security on duty. They could not get the unlucky fellow through a narrow outlet, and called a rescuer, who quickly coped with the task. The man was on the verge of fainting with the gas, and had to go to hospital, say municipal civil defence and emergency service PR.