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Solver message 221116
** WARNING 221116 ** For an initially closed valve gate, a first opening time of zero means it is initially open.
The initial closed state of a valve gate will be ignored if the valve gate is specified as opening at zero time.
Check that the correct initial condition has been specified for the valve gate and set the first opening time to a non-zero time.
Message will close by itself in seconds
Message timer has been stopped