**UPDATE EVERYONE

I have determined that I have two separate things going on.

1. My 2" main drain is 50% blocked by concrete, left over from a resurfacing job done in 1992. Tihis is causing restricted water flow, and cavitation in my pump. (top 1/8 of my pump is continual air)

2. My skimmer line is broken, somewhere underground, anywhere from the bucket to the pump. (This is causing my water loss.)

I am hiring a reputable leak guy for $150 to pressure test the skimmer line and find the link using compressed air and the electro-detection.

So I've got two pretty good problems to contend with. To me, the most important is keeping water in the pool.

I'll keep working at the main drain crete using a screwdrive and dive tanks. My red knuckles, even with dive gloves, thank you.

D.L.