The Spur East

Thirsty, tick-ed off and ready for battle in Riptide III

By GREGORY ZELLER // The people have spoken, and Rip Tide III is about to raise someone’s boat, big-time. The annual “Shark Tank” for East End entrepreneurs, a function of Southampton-based professional networking community i-Hamptons, has whittled down a field of 46 entries – with the help of an in-house selection committee and online public vote – and will put five finalists through their paces in a big final round, scheduled for Saturday at the…