Battery drain - SOLVED

Yep.

In the immortal words of 67dart273 (I think) and now a story from long ago.


Had a cooling tower that would trip off a day or so after a rain.

Engineer could not figure it out.

I suggested he check the wires in a conduit where someone had previously been gas welding

He finally got tired of me digesting it and pulled the wires, every wire in the conduit was melted together, when it rained water collected in a poorly sealed j box at the top of the vertical run and found it's way down to the melted bits of wire. Short term short!