November 25, 2018 at 2:19 PM #1 Compressor not accept partially filled Cells with compressed air for refill to full.Partially filled Cell not extract compressed air with right-click.Maybe this spread to other fluid, I not test.
November 25, 2018 at 9:04 PM #2 That's because the recipe for compressed air cell is coded to take universal fluid cells, not partially full air cells. To empty the cell, throw it into a blast furnace with space for air and it should dump all the air out.