an apparatus removes liquid from a liquid and solids mixture . the apparatus may include a bowl - shaped , rigid container having an upper portion , a lower portion , and a sidewall forming a chamber for receiving the liquid and solids mixture . the container includes a plurality of conduits extending radially outwardly along an inner portion of the sidewall . a filter separates the conduits from the liquid solids mixture in the chamber . means is also provided for reducing pressure in the chamber , which causes at least liquid to be drawn from the mixture through the filter and conduits . related systems and methods may be follow from use of the apparatus .