brilliant . Thanks for that, will give it a go tommorow night and see how it goes. Another question and please forgive me if its a dumb one, I am not brilliant with electronics ( I just about know which way to hold a soldering iron
) If I connect the + wire from the BB switch to the on/off switch on the bottom of the tank, what do I do with the remaining - wire from the BB switch
cheers
Glyn