Mud eruption in some region in Indonesia has received attention because the increase in burst points. The incident gave negative impacted on the sustainability of the surrounding ecosystem. The Piping system was applied to deliver the slurry to a reservoir as a method for disaster management. Problems in slurry flow such as the sedimentation of particles in the bottom occur. The recent study on slurry drainage was using spiral pipes which showed more efficient results than the circular pipe. Spiral pipe application can minimize deposition at the bottom side of the pipe that was caused by the flow pattern which forms a tangential flow pattern following the shape of the pipe wall. Therefore, these present studies aim to examine the characteristics of mud slurry rheological in some variation of concentration weight, Cw 20%, 30%, and 40%. Then each fluid working is compared with the change of mass variation when slurry flowed. The method used is to compare the flow of mud slurry in the spiral pipe ratio of pitch per outside diameter (P/Do) = 7.3 and 3.1 and a circular pipe with a diameter of 25.4 mm. The data are collected by varying flow rate of valve opening angle in 20 points of steps. To determine the power law index as the properties constants of non-Newtonian flow, all data were calculated using the basic equation as tools of the rheological model. Based on the experimental, it revealed that to control the efficiency of slurry in the piping system, the appropriate concentration and geometry of channel are very important.
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