The fluoride tablet feeder device is a device for dissolution of fluoride tablets into a water stream. The device is specifically designed for the fluoride tablets disclosed and claimed by U.S. Pat. No. 10,485,738 titled Tablet for Fluoridating Potable Water, which is incorporated by reference. The crux of ideal dissolution of fluoride tablets in a flowing water supply is total immersion of the tablets, with water flowing around all tablet sides for even dissolution.

An open-topped drinking cup and a lid comprising a lid cover and a mixing device for holding and mixing a condiment into a beverage held in the dinking cup. The lid cover defines a circular mounting aperture within which the mixing device is displaceably located. The mixing device includes at least two mixing elements which are connected to another so as to be telescopically displaceable relative to one another between a retracted condition and an extended condition wherein the mixing device extends into the beverage. The mixing device includes a condiment chamber which is defined within a mixing element for holding a condiment such as sugar. The mixing device further includes a mixing element which has a number of circumferentially-spaced slots through which the condiment is discharged into the beverage.

An open-topped drinking cup 10 and a lid 12 comprising a lid cover 14 and a mixing device 16 for holding a mixing a condiment into a beverage 44 held in the dinking cup. The lid cover defines a circular mounting aperture 22 within which the mixing device is displaceably located. The mixing device 16 includes four tubular mixing elements 32.1, 32.2, 32.3, and 32.4 which are connected to another so as to be telescopically displaceable relative to one another between a retracted condition and an extended condition wherein the mixing device extends into the beverage 44. The mixing device 16 includes a condiment holder comprising a condiment chamber 36 which is defined within the mixing element 32.1, for holding a condiment 38 such as sugar. The mixing element 32.4 has a number of circumferentially-spaced slots 42 through which the condiment 38 is discharged into the beverage 44.

An adapter including at least one wall defining a chamber, at least one opening within the wall, and a water-soluble additive coating at least a portion of the wall such that fluid flowing from one opening through the chamber dissolves the water-soluble additive within the chamber.

A floating dispenser for floatingly delivering a dispersant or dispersants to a body of water with the floating dispenser floating in an upright condition when a dispersant is present in a dispenser cartridge of the floating dispenser with the dispenser self inverting 180 degrees in response to consumption of the dispersant in the dispenser cartridge to thereby provide a visual alert that one should replace the dispenser cartridge in the dispenser with a fresh dispenser cartridge.

A floating dispenser having an external float or an internal float for supporting a cartridge or cartridges for floatingly delivering a dispersant or dispersants to a body of water with the floating dispenser having cartridges rotationally positionable with respect to one another to control the rate of dispensing while the dispenser floats in an upright condition with the floating dispenser changing its flotation orientation in response to consumption of the dispersant or dispersants in the a cartridge to thereby provide a visual alert to replace a spent cartridge with a fresh cartridge. In addition the inventions described herein permit changing the dispensing nature of the system from a multiple dispensing system to a single dispensing system without changing the floating characteristics of the floating dispensers through replacement of a dispersant in one of the cartridges with an inert or ballast material that has no effect on the water characteristics.

A method of preparing reagents includes inserting a cartridge into an instrument. The cartridge includes a plurality of reagent enclosures disposed in a cavity of the cartridge and exposing a port to an exterior of the cartridge. Each reagent enclosure includes a reagent container including a reagent and an internal cavity defining a compressible volume, an opening defined through the reagent container to the internal cavity. The method further includes connecting a plurality of fluid ports to the openings of the plurality of reagent enclosures; applying a solution through the fluid ports to at least partially fill the plurality of reagent enclosures; and cycling a pressure of the cavity, whereby for each of the reagent enclosures, during increasing pressure, the solution enters the internal cavity of the reagent container, combines with the reagent, and compresses the compressible volume, and during decreasing pressure, the compressible volume decreases and the reagent is ejected through the opening.

A filter well mountable dispenser holder securable within a hot tub filter well with the dispenser holder supporting replaceable dispersant containing dispensing cartridges positionable within a circulating flow of water through the filter well to thereby release dispersants therefrom without preventing the circulating flow of water from passing through the filter media proximate the dispensing cartridges.

A filter well mountable dispenser holder securable within a hot tub filter well with the dispenser holder supporting replaceable dispersant containing dispensing cartridges positionable within a circulating flow of water through the filter well to thereby release dispersants therefrom without preventing the circulating flow of water from passing through the filter media proximate the dispensing cartridges.

A floating dispenser having an external float or an internal float for supporting a cartridge or cartridges for floatingly delivering a dispersant or dispersants to a body of water with the floating dispenser having cartridges rotationally positionable with respect to one another to control the rate of dispensing while the dispenser floats in an upright condition with the floating dispenser changing its flotation orientation in response to consumption of the dispersant or dispersants in the a cartridge to thereby provide a visual alert to replace a spent cartridge with a fresh cartridge. In addition, the inventions described herein permit changing the dispensing nature of the system from a multiple dispensing system to a single dispensing system without changing the floating characteristics of the floating dispensers through replacement of a dispersant in one of the cartridges with an inert or ballast material that has no effect on the water characteristics.