LA JOLLA — It was a tough summer for the Coggan pool, located at 800 Nautilus St. — because summer never really arrived. “When you rely on warm weather and families coming to the pool, this was not our best year,” said Randy Franke, aquatic director for the Coggan Family Aquatic Complex, a privately-run entity that’s open to the public and provides pool services for La Jolla High School. “Attendance and swim lessons were down, and it’s hard to say if that’s due to the economy or the weather or a combination of both.” The complex is hoping for sun on Oct. 17, when it will hold its ninth annual Splash Bash, the only fundraiser the pool hosts to help defray its operating costs. This year, La Jolla Aquatic Complex Foundation Board’s goal is to raise $50,000 to offset losses in revenue that were brought on by low attendance as well as needed pool repairs. In June, California enacted new safety measures outlined in the Virginia Graeme Baker Act that required that the pool’s drain covers be replaced. The cost of repairs totaled about $22,000, said Franke, in addition to loss of revenue that came along with having to close the pool for a week and a half. Organizers expect 600 to 700 people to turn out for the Oct. 17 event, which will feature a hula hoop contest, relay races and a “swim-a-thon” in which participants collect pledges based on how many laps they can swim. A $5 admission fee covers food, activities and live music by a DJ and local high school band Neveready. There will also be a chance to win an iPod Touch, an iPad or an Amazon Kindle. For information about the event, call (858) 456-0945.