Board Thread:Questions and Answers/@comment-5934890-20130701190349/@comment-3075738-20130706222157

Using a pump will most likely encounter the infinite water generation feature. If you can't use a Volcanite Amulet, you can try dumping a bucket of lava on the water, and just mining away the stone produced. If you still can't use a bucket of lava, theres always the option of removing it by hand.

If you would like to dump water somewhere else you can use Redpower's Pump along with Fluid Pipes and two Grates. Note that the pump requires Blutricity to function so it may take quite some time to accomplish. By doing this, the water pumped out may still encounter the infinite water generation feature.