However, I will say a tide changing does not move water very far in Puget Sound and other similar places. It may move it what, 18 miles tops overall and then turns around and moves a lot of that back into the hole, so to speak. Sides don't flush as well as the middle on top of that. I'm just sayin'...call it the curse of boating in Puget Sound.
Of course, I can afford to be pious as I've never cleaned a boat bottom on any of my moored boats in the slip, as it were, in either salt, brackish, or fresh waters. And I'm a trailer boater now without a boat in the water even at this time.