<https://forum.tuflow.com/index.php?/topic/2027-pipeflow-not-returning-to-0/#comment-4870>
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"Hi Josh,\n \n\n\n\tRecently we had model (not rain on grid) with similar behaviour and double precision was the fix. Due to not enough significant numbers in single precision there was a trickle flow remaining throughout the pipes.\n \n\n\n\tThe rest of Peter's suggestions are also worth checking, e.g. 1D timestep and justification for the trickle flow, especially with your model being rain on grid.\n \n\n\n\tIf you can't get to the bottom of this, please send the model to support@tuflow.com for investigation. Thank you.\n \n\n\n\t \n \n\n\n\tKind Regards,\n \n\n\n\tPavlina\n \n"
<https://forum.tuflow.com/index.php?/topic/2027-pipeflow-not-returning-to-0/>