I am not new to boating but I am new to sleeping on my boat at the slip we have rented. The other night my wife and I decided to sleep on our boat for her first time and only the second time for me. Something that we did not know was all the knocking that goes on during the night. Wow that was crazy. The first time I slept on the boat I did not notice it but I had recently put the boat into the water so there was no algae growing on the bottom yet. I of course thought this is great I can’t wait to have my wife join me, she will love it. That was not quiet the words she used.
It started happening about 3 am. One knock after another and another and another. My wife was getting out of bed to go tear someone a new one. thinking a neighbor was playing a prank on us. I stopped her and told her that another slip owner had mentioned that the fish would hit the bottom of the boat at times but I had no idea what he really meant till now. Of course I decided to do a little research and see what we could do to keep that from happening again.
From what I have read it is a good idea to pull the boat every so often and power wash the algae off. Another way is to paint the bottom of the boat with an anti fouling paint. From what I have read it does not completely stop the algae from attaching to the bottom of your boat but does slow it down drastically. These 2 ways are definitely something to look at but will cost time and money. There is another way that seems like a pretty good idea that I saw a person post and that he is using the aerators he used during the winter to keep the water from freezing around his boat. During the summer is turns them on at night and the banging on the bottom of his boat stopped. The fish did not like to work against the current to eat so they went somewhere else. Not a bad idea if you already have them there for the winter use. One last thing I thought was interesting is that someone said they used a salt block (yes the ones for the animals to eat) and that worked pretty good. I might have to try the salt block first to to see if it does. If anyone has any other great ideas I would love to hear from you. Thanks