Smaples107

I have a 2004 B52 Team Edition with 500 hours. As of lately, there is a very rough and loud clanking and crunchy noise coming from underneath the cockpit when idling and moving in either direction? I'm a new boat owner, and would appreciate some help trying to identify what that could be from? Boat still goes just fine, but the sound is fairly concerning.

I have a 2004 B52, with the triple-up ballast system. The front tank fills and empties no problem. The rear and left tanks do not do either. you can hear the left tank try to fill, and will shoot a little water when trying to empty. The right tank doesn't even try it seems. No noise or anything. I was hoping to get some help prior to paying someone to diagnose. Maybe the pumps? Any help is appreciated!