OK let me put it another way, when the tide height is changing fastest
that is when the maximum flow is more likely to occur. The change in
height is due to a change in volume of water (at a given point). So, if
the volume is chaning faster it must be due to some volume of water
moving away faster?

Does that help?

Cheers

Thom Stewart wrote:

Nav,

Height is a measurement of distance from a reference point. It isn't a
rate. It is a static measurement. It just doesn't compute. I don't
follow you terminology?

Ole Thom