See It in Action: Step-by-Step Blueprint for an Infinite Water Well in Minecraft
Can I build an infinite water source using only one bucket?
Yes, through two specific methods. You can craft a cauldron, hang pointed dripstone under a block with that single water source on top, and collect water from the cauldron as it fills to yield a second bucket. Alternatively, place your single source block in an ocean or river biome, plant kelp in flowing water to turn it into additional sources, and scoop up the freshly generated blocks.
Why did my 3x1 water trench turn into flowing water?
You likely collected water from the left or right side rather than the exact center block. A 3x1 design only regenerates when water is taken from the middle space, where the opposing ends can flow into each other. If you scoop from either edge, you deplete one of the two foundation sources and break the replenishment cycle.
Does an infinite water source freeze into ice in cold biomes?
Yes. In snowy plains, frozen peaks, or high-altitude builds, exposed water blocks turn to ice if their sky access is entirely unobstructed and the local light level drops below 13. To keep your infinite well from freezing over, suspend a solid block, glass slab, or lantern directly above the water surface to block cold sky exposure.