Working outside on triple-digit days doesn’t bother Hope Fink. All she has to do is tell her partner on the other side of the pool that she’s getting too warm, slips off of her stand, and drops into the cool water below.Such is the life when you’re a lifeguard with the Manteca Parks and Recreation Department and your office is the Lincoln Pool. “There aren’t a lot of jobs where you can just jump into a pool when you start to get hot,” Fink said.