F%^& ... F%^&* ... F^&* who does this shyte ???

So I am busy with a double storey domestic rewire ... couple hours to rewire the ground floor ... pull in neutral and earth wire to the each switch ... and we done ... ran into one Tee piece which was plastered closed on the ceiling ... took out the metal detectors ... easy find ... scan the ceiling ... find where the it tees off ... out with a 4 lb hammer and boom there it is ... remove the cover ... pull the cables and we done.

Then we started the 1 st floor ... removed the lights and switches ... start with the 2 way switching on the stairwel ... removed the ground floor 2 way switch and pulled on the wires ... wouldnt even move an inch ... check the wires in the switch upstairs and downstairs ... one has an additional neutral and the other an additional live ... straight away it tells me that there is a junction box somewhere in the wall or ceiling ... cut all the wires and switch on the power ... to make matters worse .. .the feed from the DB is also in the junction box ... out with the metal detectors and a pencil following the wires up the wall and onto the ceiling ... scan left to right to see if the gap in the beeps increases ... indicating that there is an object wider than a pipe ... nothing ... out with the bright torch and the hammer ... tap on defects on the ceiling ... the sound would change if ther ewas a junction box ... nothing ... next try pull on the wires as hard as you can hoping a joint will release and we can measure the piece to get and idea of distance to the tee/junction box ... wires just snap off (old material wiring ... hence the rewire)

I considered smoking a joint and blowing smoke into the conduit ... like we do when we trying to identify pipes to or from a DB ... works like charm ... but in this case ... it seems the box is buried deeper.

Tomorrow I am going to pour water down the pipe and leave it to stand for a while ... hoepfully it will create a wet spot on the roof within a couple hours ... I will take my thermal imager with to site ... to scan the ceiling once we have poured the water ... it might pick up a slight temp change ... other wise I will chop open where I know the pipe is running and use a blow torch to heat the pipes and track the piping like that.

Any other tips?