the fluid 35 and are then withdrawn from the fluid 35 as illustrated in fig2 after the carcasses 15 are withdrawn from their respective reservoirs 25 the fluid 35 is poured out of each reservoir 25 into a sump 75 the sump 75 can be any tank or container operable to receive a quantity of fluid 35 from the reservoirs 25 in some embodiments the sump 75 is the same element or structure used to capture and or collect fluid 35 spilled as the reservoirs 25 are filled as described above in other embodiments such spilled fluid is collected by a separate sump and can be re circulated back into the reservoirs 25 regardless of whether fluid 34 in which carcasses 15 are immersed is re circulated to the reservoirs 25 as described below some embodiments of the sump 75 can have a screen or other fluid permeable cover to inhibit foreign particles from entering the sump 75 in other embodiments the sump 75 has an open top portion to freely receive any fluid 35 and particles from the reservoirs 25 the sump 75 can have any shape and size suitable for receiving fluid 35 from the reservoirs 25 in some embodiments the sump 75 can further include or be connected to at least one filter 80 and or one or more fluid processing devices not shown the filter 80 can filter particles and or bacteria out of the fluid 35 in some embodiments fluid 35 that has been received within the sump 75 and that has passed through any filters 80 or fluid processing devices as described above can be re circulated e g through conduit.