Hey fisherpeoples. I have 2 old 1995 Koden colour sounders. Sound sok but here's the drama. They are not using through hull transducers, they have wet boxes. I dont know if any of you have had any experience with these but when I get in shallow water they cut out. No signal and needless to say, the berty normally bottoms out. Luckily I have not done any serious damage so far but it cant be far away. Is there a way to make these damn wet boxes work as good as a normal transducer. Am I not doing something right? I have played with the settings and even read the books. But when I get to about 2-3 metres and if the water is a bit murky. No sounder.