A time-release composition and method of making and using the time-release composition. The time-release composition may include an active ingredient that is useful in deterring unwanted growth, such as bacterial and fungal growth, in high-flow water environments. The composition can include several active ingredients to provide a multiple use tablet. The multi-use tablet can be used to dispense any combination of active ingredients that act as clarifiers, minerals, medications, buffers, chemical dosing, and/or other maintenance components, such as growth deterrents and water filtration augmentation and any combination thereof.

The invention relates to a metering device (D) for metering a reagent by dissolution in a liquid flow, characterized in that it comprises a plurality of parts: a fixed base (200) grouping together said enclosure and a liquid inlet, means for bringing the liquid into contact with the reagent roller (G) and liquid outlet means, one or more cartridges (300) forming a separate detachable volume grouping together said reagent magazine, means for forming at least one liquid jet directed substantially radially towards the roller (G) to be dissolved, and means for supporting the roller (G), said cartridge (300) coming to be associated with said base (200) which is preformed with at least one area for receiving said cartridge (300) for the purpose of dissolving the reagent.

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 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.

The present invention relates to a chemical feeder that includes a housing having a housing chamber, a sieve plate residing within the housing chamber, and a funnel residing on an upper surface of the sieve plate. The funnel includes upper and lower openings, an interior funnel space, and at least one funnel sidewall aperture. The sieve plate includes a plurality of sieve plate apertures at least a portion of which are in fluid communication with the interior funnel space via the lower funnel opening. During operation, a feed liquid passes up through at least a portion of the sieve plate apertures and into the interior funnel space where it contacts a solid chemical material, so as to form a treated liquid that includes dissolved chemical material, at least a portion of which passes out through the funnel sidewall aperture(s) and exits the chemical feed through an outlet.

A dechlorinating device includes a mixing chamber having an inlet and an outlet, and the dechlorinating device is configured to receive a fluid. The dechlorinating device also includes a dechlorinating conduit disposed within the mixing chamber and a recirculation zone disposed within the mixing chamber and positioned between the dechlorinating conduit and the outlet. A dechlorinating system includes a storage tank, an overflow pipe in fluid communication with the storage tank, and the dechlorinating device in fluid communication with the overflow pipe. A method of dechlorinating includes providing the dechlorinating device and feeding the fluid to the inlet of the dechlorinating device.