Our local lake is pretty cruddy. It has sea water back up into it at high tides and road salts that wash down from the local culverts.
It also has about 4 feet of rotting vegetation on the bottom, huge leaches and weird snails that stick to your floats.
Plus two huge Powers lines that lay on the bottom of the lake.
So I have a real problem with blood red algae which refuses to scrub off the floats. And lots of rough aluminum under the water line. SEE PICS
But I did not have as much of a problem when I was running a non-electric Cub for 10 years.
Plus my old Cub was light enough to partially beach every night.
HOWEVER, now that I have a C-172 on PK-2300s, I have all sorts of problems. I suspect that under the water-line electrolysis has a lot to do with my problems.
The Cub had no battery system to complete a circuit and the floats were often touching the ground out of the water.
SO....... I wonder if hooking a ground cable to my plane at night would reduce ( or encourage) the effects of electrolysis on my poor floats ??????
Detaching the battery cable every night is a big pain in the butt.