Excellent point. But, if I decided not to do that, can I just build over the conduit and have it be safe, even if the wires may be connected to the breaker box? The fact that the electrician told me to keep the disconnect key in case I decided to put another hot tub there indicates, to me anyway, that the wires are still connected to the breaker box. He is the one who switched the fuse box switches to "Off".

Is it dangerous to just build over the conduit if I cannot find it?

Maybe I need to hire an electrician as I do want this to be done right.

Happy to see that this great informative group is still here. I have not posted in a long time.

Thanks!