HOW I CAN STOP LEAKAGE IN MY WATER TANK MADE OF 0.5 mm WALL THIKNESS SIZE Dia1050 mm x H 2300 mm USED AS PURE WATER STORAGE AT NO PRESSURE.I DO NOT HAVE ANY FACILITY OF SS WELDING AT SITE .NEED RECOMMENDATIONS OF ANY MARKET ITEM LIKE EPPOXY/DEPOXY ETC.