day.Petition Asks For Draining, Fencing Of Birdwell TankCity commissioners Tuesday evening studied a petition signed by 32 members of the South Ward Parent-Techers association asking that Birdwell tank, in eastern Big Spring, either be drained or fenced.The petition was prompted by the drowning of two small children, Kermit and Eloise Sharp, Sunday, according to the message to the commission.No immediate action was taken, but since the use of the tank and its dam has been included in the master flood control plan for Big Spring for retention purposes, the city manager was Inst-ucted to open negotiations for the property on which the tank is located. Under the flood control outline, the water In the tank would be drained slowly, thus cutting down on damage from excessive run-off.