water_source_conversion
booleanJava 26.2 onlyControls whether two converging water flows can generate a new water source block. When false, water behaves like lava — it flows but cannot create new sources, making water management far more difficult.
Enable water_source_conversion
Water source blocks can be created by two converging flows — water is renewable (default).
Java
/gamerule water_source_conversion trueDisable water_source_conversion
Water cannot create new source blocks. Water drains rather than fills.
Java
/gamerule water_source_conversion falseDefault: true. Restore with /gamerule water_source_conversion true
What water_source_conversion does
Controls whether two converging water flows can generate a new water source block. When false, water behaves like lava — it flows but cannot create new sources, making water management far more difficult.
water_source_conversion is a Java Edition-only gamerule and is not available in Bedrock.