Tell us about yourself!
I second the separate compartment for the battery. The out gassing could also corrode the electronics. I would also use a separate float charger on the battery to maintain the battery when not in use.
Better check on permits first!
Or Loctite blue/red.
Resistors are measured in "resistance"' not impedance. Just a FYI.
Awww..the little doggy wanted the oar!
Rain‑X® All Season Windshield Washer Fluid, run it all year, does it all, doesn't freeze, water beads off windshield.
I would have second thoughts about a power cord in the water with me, even if its meant to be.