Napa's old Exertec pool is definitely not fit to swim in today. In fact, not much remains of the lap pool, once part of the Exertec Fitness Center on First Street in downtown Napa. Construction crews recently filled in the pool with dirt and gravel and installed an industrial-sized grease âinterceptor.â The special drainage compartment is a must-have if a restaurant decides to open at the site, explained construction manager Bob Bradley. Support local news coverage and the people who report it by subscribing to the Napa Valley Register. Special offer: $1 for your first 3 months! Br...