OK, I'm going to quibble with the volume. If your pool is 16x32 and 6 feet deep everywhere, then it's roughly 23,000 gallons, not 40k.
HOWEVER, if it's gunite (or concrete, plaster, shotkrete, pebbletec or tile) then the extra chlorine shouldn't hurt, and may clean it up faster. Hard-sided pools are far more impervious to high chlorine than vinyl, which will bleach out.

Other than that, read everything you can at PoolSolutions.com (our sister site) and here, on every topic that applies to you, the stickied threads.

Welcome!

Carl