Skimmer Air Leak

Hi,
Have problems with one skimmer bubbling after blowing the line and plugging it. Installed a new gizmo with tape and got air bubbles. Tried using a new plug and still got some bubbles. Any suggestions on how to seal this?
Appreciate any help...

Try smearing some silicone seal on the threads. The sealer doesn't stick well to PVC or the gizmo so it comes out easily in the spring.
Al

Al,
That sealed a little better. Still difficult but finally got it. I assume you remove all water from the skimmer to let the silicone cure? Hate to do this as I can't see bubbles with out water....
Thanks for the help.
E.

You can actually do it wet but I do shove a rectangular piece of foam in the skimmer opening then suck the skimmer dry with a shop-vac. I leave that foam in place over the winter bacause I don't drain below the skimmer and it isolates the ice block in the pool from the one in the skimmer. The foam doesn't form a good seal but good enough to let you suck the water out. As for curing, silicone doesn't want to stick to wet surfaces but once in place it will cure under water.
Al