Bidirectional tidal flow

[sphelps]

Originally Posted by golf nut

How did I edit your post?

haha, get that out of there! I can't remove it

BTW that still wouldn't work as simply as you think. Once the switch makes contact and shuts off the movement what then tells it to move on? You still need a smart relay. And you can't run a cam, is it not sealed to prevent water leakage, it would think it would have to be magnetism which wouldn't react properly with the magnets already present.