The quantity of water flowing past a design- ated point within a specified time, such as the number of gallons flowing past a point in 1 minute - abbreviated as gpm
the quantity of water flowing past a designated point within a specified time, such as the number of gallons flowing past a point in 1 minute - abbreviated as gpm Reagents: the chemical agents, dyes, indicators or titrants used in testing various aspects of water quality Residual bromine: the amount of measurable bromine remaining after treating the water with bromine The amount of chlorine left in the pool or spa water after the chlorine demand has been satisfied Residual chlorine: the amount of measurable chlorine remaining after treating the water with chlorine The amount of chlorine left in the pool or spa after the chlorine demand has been satisfied