Thanks, I have tried that. Guess I will try to force water through the skimmer line next.

Still no luck. Does anyone think you could a put 1” flexible Hose inside the original line?

Could a slug of leaves/etc gotten into the skimmer line? You may need to devise a way to blow it out with a reverse flow.

I have tried that from both directions. Can you snake these like a plugged drain?

It depends on how many 90 degree turns it takes, but it might be worth a try.

When you tried the reverse flow, did any air or water come out of the skimmer, or was it plugged solid?

Nothing came out. I’m afraid the hose might be split because I let the water run about 15 minutes. What’s strange though I’m not losing any water day to day. It’s getting very discouraging.