Spa draining overnight; spa return line check valve replaced

[ck2]

@Poolbreh I plugged the spa water feature, and that didn't fix the issue.

I now suspect that the spa light conduit is leaking. Do you have any recommendations on diagnosing a leak in the conduit? Can I safely unscrew the light fixture while it's underwater and check for leaks? If I do find a leak, what's the best material to use to fix it? Thank you.

 

[Poolbreh]

Did you plug the intake and return under the drain covers like Marty and Jim said? The light has a niche screw and a hook opposite side of the screw that slides into a bracket, if you remove the screw the light should come out and you should have enough cord to put the light on the deck. They make a non hardening plumbers putty you can stick in the conduit going into the wall around the cord. If you want something more permanent use silicone. Silicone will have to removed if you ever want to pull a new light.

 

[66promod]

@mknauss I recently replaced the diverter valve on the suction line, so it's brand new. Is it possible that I installed it incorrectly?

Just curious since I didn’t see this asked, but was it losing water before you replaced that diverted valve?