A group of tubing companies is trying to stop New Braunfels from banning disposable food and beverage containers on the Comal and Guadalupe Rivers. The city ordinance was passed 5-2 in August, but it will face a vote in November after opponents gathered more than the 1,666 necessary to challenge the rule. The drought has crippled the tourism business along the river, and a coalition of tubing companies that filed the suit in Comal County Court believes the ban will make matters even worse. Rockin R River Rides general manager Shane Wolf says his business is down 35 percent. He says his colleagues are reporting similar losses, which, he points out, digs into the citys tax base.