Jim Hazen

With Saf-T-Swim splash, big fish dives into LI waters

By GREGORY ZELLER // A longtime Long Island swimming school dedicated to teaching people to love and respect the water also loves and respects a good deal. And so Deer Park-based Saf-T-Swim, founded in 1984 and now operating 13 instructional locations across Long Island, has been acquired by Streamline Brands, a global franchiser and North America’s largest swim-school manager. Terms of the deal were not disclosed. But the acquisition, announced Thursday, sees Saf-T-Swim’s six Nassau…