This Project started out to replace the auto switch for my Bilge Pump in the boat. The previous owner had the float switch wired up with "speaker" wire - which did not instill confidence in me for his wiring skills - and possibly why the pump did not work.
![Bilge Pump Switch - Front]()
Bilge Pump Switch - Front
![Wiring Diagram]()
Wiring Diagram
![and rear]()
and rear
I bought a new switch (and even read the instructions). From that I made the following drawing as a WIP guide ..... (nice paper ;-) )
I first wired everything up using the old switch and the thing worked :-) Testing the Float Valve a few times I found it only worked some of the time. Back to the
shop and swapped the new switch for a new float switch. Wired it all up again - perfect.
Now where am I going to save this drawing for future reference - VOILA ! here.
This then got me thinking "What has this got to do with this Forum"? Think outside the square .... How about a security device for your camper or caravan while your away?
You could replace the Float Switch with a pressure plate in the annex doorway. The Bilge Pump could simply be a light (or a bloody big air horn at head height - just remember to turn it off when you get back).
The mind boggles ......
Malcolm