Our 20-year-old underground concrete pool has a pair of Certikin PU9 underwater lights. To cut a very long story short, the "guts" of the light at the deep end were destroyed, and needed replacing, so I got a replacement "guts" pack. I disconnected the wiring at the junction box, and tied on the supplied string, to pull it through the conduit.
As the pool was full, I got into the pool, to try and pull out the cable through the niche (the part that's embedded into the pool wall), but found it wouldn't budge. Grappling around, I felt that the cable was clamped in place by a gland, held in by a plastic hexagon nut on the back of the niche. The below picture shows a PU6 - a similar light - the red circle shows the approximate placement of the gland. Note that the PU6 has the glad on the side edge (which would have been easier!), the PU9 has it right at the back - this image shows it better. I tried using a spanner to undo it, but due to the size of the spanner being bigger than the niche, I couldn't get a good purchase on the nut. It seems that I need an angled spanner or something like that.
What is a suitable tool I need to purchase to be able to undo this plastic nut, please, especially that I'm doing the work while the pool's full of water? Many thanks in advance!
- Pool-Light-Pu6-Quick-Change-Light-Replacement.jpg (35.98 KiB) Viewed 617 times
