Depth finder problem solved and only cost a few cents! Garmin thru-hull transducer.

[Fini flight]

Transducer was not working. Liquid was somehow escaping. Filled a ziplock gallon bag with antifreeze and let it sit for a week to make sure it didn’t leak. Placed the bag in the hole, topped it off with fluid, rolled excess over edges, put cover back on with the screws and it has worked now for over a month.

 

[abastos]

That is a smart fix. I had the same issue and ended up reaplying the sikaflex. There is a thread here (https://www.tugnuts.com/threads/transducer.26997/post-170068) with pictures in case you need to re-apply the sealant at the bottom of the cup.

 

[Fini flight]

Thank you!