Abstract: A method of maintaining a safe free chlorine level in a body of water for recreational use where the free chlorine level at a harmful level comprises determining if the free chlorine level in the body of water is above a safe level and adding sufficient DMH to the body of water to bring the free chlorine down to a safe level.

Abstract: An improved lighted fishing float is illustrated using a two colored high intensity light source which may be composed of either one duo colored high intensity light emitting diode or two separate colored high intensity light emitting diodes. The entire upper section of the casing is illuminated making it easier to be seen from greater distances than any other lighted fishing float on the market. The color of the light switches in response to a fish contacting a hook attached to the fishing float. The upper portion of the casing may have a magnifying lens to intensify the light beam.

Abstract: An illuminated fishing float with high intensity multi colored high intensity light emitting diodes signals fish activity beneath the float. When the float is activated a single color of light is emitted. When fish activity occurs beneath the float a flashing light is displayed. When a fish takes the bait the flashing light and the single color steady light are extinguished and a steady light of another color is displayed. The float is hollow and is composed of two sections which screw together.