Sadly after calling all the pool supply places here in Vegas, none sell bulk refillable chlorine. Leslie's seems to have the best price I can find 12.5% 4 1 gallon for $13.56/$3.39 gallon. Last I bought was 2 1 gallon 10% for $7.88/$3.94 gallon. How do these prices compare or does anyone know of a better place to go in the Las Vegas/Henderson area