A lot of the tender growth was near the transom, especially around the bung. I ponder whether or not getting plastic, rather than fibreglass, it dampened the ultrasound waves: Julian, What is the factor you've got installed the transducer on? It has to be about the hull, wherever the sound https://oxygen-chambers74950.loginblogin.com/43441818/not-known-details-about-oxygen-chambers-near-me