Need to say at the start i am not very good with this unit. My problem is down imaging is washed out, my side imaging is good but when i go to di it is washed out. I have had this unit about 3 years and all was good until about 3 months ago. As you can guess i don't get a lot of use, my fault. I did loose a rod over board and would like to look for it with di. The water is about 8ft should be able to find if the di worked. Any input on what to check.