Can anyone tell me if this is electrolysis? I had my boat in the water (fresh) at the local state park for 3 weeks and when I pulled it out the front half of the pontoons on both sides look like they had scale or were being eaten. It's very strange because its on both sides but only the front half between the welds. I thought it was scaling or something but It's very hard and does not scrape off. I checked my grounding on the boat and nothing is grounded to the frame. While trouble shooting a bad live well bilge pump I did have a exposed wire under the water. Can anyone tell me by the picture what they think this it is? One picture is the smooth section from the transom to the vertical pontoon weld and the other is from the front section where I have the issue.



