IC2 block that turns water into distilled water under sunlight at about 1 mB per 3.5 seconds.
Java Edition Guide
Set the Solar Distiller on a flat surface with no blocks above it; opaque cover stops distillation.
Pipe in regular Water using BuildCraft Waterproof Pipes, an IC2 Fluid Pulling Upgrade on a pump, or right-click with a Water Cell / Water Bucket.
Each daylight tick produces a small amount of Distilled Water; expect roughly 1 mB every 3.5 seconds in clear weather.
Attach a fluid pipe to the Solar Distiller's output face or use an IC2 Fluid Ejector Upgrade to push Distilled Water into your Steam Generator loop.
Build rows of Solar Distillers on a flat roof so you can sustain a Steam Generator without distilled-water shortages.
No — the Solar Distiller runs purely on sunlight and consumes 0 EU.
Check that no block covers the Solar Distiller's sky line and that it has Water in its input tank; it pauses at night and in rain.
Distilled Water is required by the IC2 Steam Generator coolant loop; regular Water would calcify the heating element.
Roughly 1 mB of Distilled Water every 3.5 seconds in clear daytime weather — you usually need several Solar Distillers per Steam Generator.