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Figure 1. 10 datasets of experiment (x) 
with the ensemble average (red line) for the old setup.
Figure 2. 10 datasets of experiment (x) with the ensemble average (red line) for the new setup.
Figure 3 illustrates the effect of different setups of tube flocculator. Using similar initial parameters, the new setup shows a faster drop than the previous setup. This could be an indicator that the new setup has more bigger flocs during the settling state than the previous one. Data smoothing is applied to eliminate fluctuation due to recirculation problem that previously indicated. Only one dataset is chosen to illustrate the pointThis is possible due to the fact that the previous setup has greater number of horizontal pathways that allow bigger tube flocs to settle during flocculation.
Figure 3. Ensemble average datasets for both old and new setups.