The fight for control of Hidalgo County Water Improvement District #3 is headed to Austin — again. State Sen. Juan “Chuy” Hinojosa, D-McAllen, said he plans to introduce a bill that would allow the city of McAllen to dissolve the tiny water district.  The fight will pit Hinojosa against District #3 board President and General Manager Othal E. Brand Jr., who is running for mayor of McAllen, in the middle of his campaign. “It just seems like Othal Brand uses the water district as his own company,” Hinojosa said. “Not really to serve the citizens of McAllen.” Brand said the bill is pure politics. “Truthfully,