After pulling the pontoon out of the water for the off-season don’t forget to scrub the face of your sonar’s transducer before any scum has a chance to dry on the down-facing surface of the sending unit. A quick wipe with a rag will do it if you tackle the task while the transducer’s still wet.
Photo by: Boating Magazine Editor
Pontoon Transducer
Keeping the face of your sonar’s sending unit clean will allow you to maintain an unobstructed view below.