Abstract: A device for use in a swimming pool to continuously dispense chlorine for sanitizing the water is disclosed which is advantageously made of five main segments which may be molded using only simple and inexpensive molds. The device is for the most part snapped together in a manner preventing relative rotation of the various components, with only a single adhesive operation required to seal the waterproof float assembly. The device is manufactured in a sturdy fashion, with all the parts being held firmly together in a unit not dependent on single axis connecting hardware.

Abstract: A device for use in a swimming pool to prevent a floating chlorine feeder from spending an inordinate amount of time near a single location in a swimming pool due to water currents is disclosed which uses a tether to place the feeder in a central location in the swimming pool. A retainer is attachable to a floating feeder, and a retainer hook is attached to the edge of the pool furthest away from the location to which the feeder is drawn by water currents. A tether cord between the hook and the retainer keeps the feeder in the central location in the pool, where it is maintained by the currents in the pool.

Abstract: A device for use in a swimming pool to continuously dispense chlorine for sanitizing the water is disclosed which provides an indication when the device has either depleted or nearly depleted its chlorine supply. The float supporting the feeder and the chlorine is of two colors, one color on the top and a second color on the bottom. When an adequate amount of chlorine is contained in the feeder, the bottom color is below the waterline and not readily visible, and when the chlorine is depleted to a desired minimum amount, the bottom color is sufficiently above the waterline to provide a readily perceived visual warning of chlorine depletion.

Abstract: A device for use in a swimming pool to continuously dispense chlorine for sanitizing the water is disclosed which has a metering valve designed for precise adjustment of the rate of dispersion of the chemical contained in the feeder. The metering mechanism is made of two segments, with a metering valve cap fitting over a metering valve body to adjust the apertures in the metering mechanism. Precise control is afforded both by a screw-type adjustment of aperture size and by a prevention of inadvertent readjustment of the metering mechanism caused by the device being bumped.