A device for dispensing water from a source of water under pressure to at least one water-using attachment, includes a basin and a water-dispensing adjustable diaphragm fill valve. The water-using attachments may have various configurations such as but not limited to garden planters and pots, terrariums, and farms, garden pot converters, underground springs, Christmas tree stands, animal waterers, animal waterer/feeders, bird baths, hummingbird feeders, amphibian habitats, animal cages, bird cages, pond filter/fountains, aquariums, air conditioners and water toys. The basin holds a volume of water and has a closed bottom, at least one side wall, and an open top and includes a water inlet port adapted to connect the basin to the source of water under pressure. A mounting rim is positioned adjacent to the open top for mounting the water-using attachments, and a seat is provided for readily accepting and releasing the fill valve within the basin below a selected water line. The adjustable diaphragm fill valve is mounted on the seat and maintains a volume of water in the basin at a predetermined level. The fill valve has at least one water outlet port for dispensing water from the fill valve into the basin.