fuses and circuit breakers. Fuses are devices that melt or destruct at a certain current flow, like five amps. Once they melt they must be replaced. Circuit breakers are mechanical devices that trip and open the circuit without damage to themselves. Since circuit breakers can also be used as...
Depending on the combined backing block +hull thickness, the thru-hull fitting length may need to be reduced so it does not bottom out inside the seacock before proper compression is achieved The valve is closed when the handle is horizontal (perpendicular to the thru-hull fitting) and is open...