Leave the coupling and screw a nipple into it.
Wall connection to electrical box
I have an exterior masonry compartment for the hot water heater. The WH needs to be replaced so I disconnected water supply and electric.
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I put a temp hose to connect the cold to the hot for now.
The electric coming out of the wall is a liquid tight tubing. I would prefer to mount a metal box at the wall, then from there to the new WH.
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After I removed the liquid tight tubing, I noticed at the wall is a 1/2" rigid coupling sticking out by about an inch. I assume behind the coupling is a nipple through the 8" concrete block wall.
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I tried to turn the coupling counterclockwise and it turns, but I am not sure this is a good idea, if the nipple inside turns with the coupling, then I might end up backing out more than just the coupling.
What is a good way to mount a metal box at the wall to that connection? If the coupling is flushed with the wall, I can open a knock out hole in the back of the box and use a chase nipple. But with the coupling stick out an inch, I am not sure how to make a good connection.
I put a temp hose to connect the cold to the hot for now.
The electric coming out of the wall is a liquid tight tubing. I would prefer to mount a metal box at the wall, then from there to the new WH.
After I removed the liquid tight tubing, I noticed at the wall is a 1/2" rigid coupling sticking out by about an inch. I assume behind the coupling is a nipple through the 8" concrete block wall.
I tried to turn the coupling counterclockwise and it turns, but I am not sure this is a good idea, if the nipple inside turns with the coupling, then I might end up backing out more than just the coupling.
What is a good way to mount a metal box at the wall to that connection? If the coupling is flushed with the wall, I can open a knock out hole in the back of the box and use a chase nipple. But with the coupling stick out an inch, I am not sure how to make a good connection.
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