An odd Transducer problem

[sailvayu]

A friend is on the hill right now and he pointed out an odd problem with his transducer. In nearly 40 years of looking at bottoms, (boat bottoms that is of course when it comes to the ladies....) I do not recall ever seeing this. The transducer is sort of eaten away in lines. I was going to just fill it in with epoxy but found it is not hard like epoxy but rather soft like dense rubber. I thought these were all hard at least all the ones I have seen. He says it still works fine. I would like to fill it in but do not know what with. I do not want to change the density as that might mess with the sound waves. Any thoughts?

[daddle]

Replace it. Looks very old, like it is headed for failure. That's my opinion.

[donradcliffe]

Don't mess with success. It looks like the kind that can be pulled from inside the boat. If so, lube it up so that you can easily replace it in the water, and put it back.