depth transducer cable failed - replacement ?

[catmandoo]

My ST40 depth instrument failed as the cable close to the transmitter was damaged due to vibration against the through hull transducer plastic casing edge

Raymarine said replace but admitted i could try to rejoin cable and re-insulate using heat shrink but was not successful due to restricted space and closeness to transducer .

I don't want to lift out next year just to replace a through hull transducer so am looking for an alternative to put in with out penetrating hull . I have thought of a transom mount but understand this could be affected by turbulence .
Also fish finder but where to mount ?

Any one gone down this route before ?

what did you do and was it successful ?

 

[bedouin]

I have two transducers mounted inside my GRP hull - one is mounted in an oil bath and the other epoxied directly onto the hull. Both work fine.

 

[prv]

Log transducers are designed to pop out for cleaning while in the water, replaced with a plastic dummy transducer as a bung. Do depth ones not do the same? If you can get a matching replacement (which ought to be possible for a well-known brand) then just swap it over.

If you have a solid GRP hull you can certainly fit a new one in an oil bath (that's what I have, and why I'm not certain about the popping out) but it seems like a lot of bother compared to the above.

Pete