Swiming Pool forming shell

[Stubbie]

Pool is drained awaiting new liner. Pool is 25 yrs or so old.

Got a few questions about a problem I'm looking at on a wet niche luminaire in a swimming pool. Original job call was for a inoperative luminaire. Luminaire is now working (broken neutral wire + burned out bulb).
Problem: When replacing the burned out bulb, I noticed the rnc has pulled out the back of the forming shell and the #8 bonding wire lug has also pulled out of the back of the forming shell. I can see them about 3 or 4 inches behing the shell.
Question: If I pull that forming shell I have this bad feeling that I'm going to get a few wheel barrows of backfill gravel out the exposed opening. This is going to leave a void below the concrete walkway if that happens.
My responsibility is to reconnect the conduit and bonding lug to the forming shell. This lug also has the #8 egc from the luminaire junction box.
Anybody ever removed a forming shell from an existing pool to correct the bonding requirement?

 

[hey_poolboy]

From inside the pool there is likely no way to remove the niche without losing gravel.

In almost every case I have had to remove concrete to access the back side to repair the connections. For that matter if it is a steel niche it's probably junk anyway. The PH of the pool water destroys them over time.
The metal gets so thin its like paper.

 

[Stubbie]

Ok... I see what you are saying. I've had time to look at the wet niche and luminaire jb some more since posting. Its my opinion that the whole conduit run from jb behind diving board and the forming shell and niche need to be completely replaced. A previous repair has been made at the luminaire junction box as there is a conrete replacement around the jb location. I am unable to remove the old wet niche power cord in order to pull a new cord from a new wet niche thru the rnc. It appears that a splice may have been made under the concrete best I can speculate. So looks like we call a coring company to cut the concrete and gain access to replace the forming shell and wet niche plus new jb and conduit.

Thanks for your time.

Stubbie