You can't beat simplicity for ballast tank control (with apologies to David F, JR, Nigel, etc)
This is the basic wiring diagram using two microswitches for flood/blow of a ballast pump.

This is the basic wiring diagram using two microswitches for flood/blow of a ballast pump.

» 27Mhz - Radio Ideas
» Not the hobby I expected :)
» Upholder build instructions
» Antennas - Underwater
» Single Channel Remote for submarines
» self contained compressor and solenoid valve for bladder systems.
» New to this forum and first submarine
» USS Bluefish