The Army's 21 Sri Lanka Sinha Regiment (21 SLSR) troops of the 563 Brigade of the 56 Division of the Security Force Headquarters-Wanni a few days ago, alert to information given by civilians attended to a water leakage in the Marailluppaikulam tank bund at Illeimaradankulam in the general area of Omanthai and mended it swiftly before it caused a major disaster.