Thanks for the quick response bimr.
The intent of the figure I posted was to show the relative elevation of the process equipment and piping. I've attached the P&ID with notes.
The entire plant is automated and is controlled by the liquid level in the clearwell (start-up, shutdown, and...
I have a situation where a water treatment plant that operates intermittently drains on shutdown to the clearwell because much of the process equipment and piping is at higher elevation than the discharge point (clearwell manifold). (see attached sketch).
To prevent this, is it best to install...
