Re: Tide Eliminators
 

Capt Frank is right that could be a sketchy situation with even a moon tide. Just go with a simple counter weight system. It's cheap, safe and easily adjustable!!

Re: Tide Eliminators
 

Get 4 of these (2" pvc conduit elbows) and glue them up. They make a perfect floating piling ring. Stronger than you think. On my 4th year with the ones I made, including Sandy.

Re: Tide Eliminators
 

You need them to float Fill with the PVC with spray in insulation to improve this design

We had these floating large collars on our boats at Sandy Hook Bay Marina. The collars were dropped over the piles. They worked great in season. Had to get them out of water up high if it froze there.

Idea design is these floating collars on the forward cleats and pulleyed dumbbells on the stern to hold position in the slip.