After doing the plumbing work, it was time to hit the electrics. I had some scraps of old wood lying around, so thought that they would as something to mount the switches on. It could be prettier, but it’s pretty simple to move it to something nicer.
Sports CameraSports Camera

The label maker came in handy for this job, as we were bound to forget what the switches do! From left to right:

  • Selects between the internal or external tank (SPDT)
  • Turns the float switch on or off (SPST) (if the external tank is empty for example)
  • Forces the external tank to be on (SPST) (if we want to over-fill the internal tank)