First, a big thank you to TFP for helping me turn this:
(I rotated the photo and vbulletin still put it in upside down )
Unfortunately, once all the backwashing was over and the solar cover was on, I kept losing water. That's to say, fill it to the top of the skimmer Thursday night and by Sunday evening adding water again.
So I did the bucket test. Bucket evaporated 1/4" while the pool (still with cover) lost 1-1/4". American Leak Detection wanted $325 and couldn't make it for 2 weeks, so I let it leak down. We tried food coloring with a dropper, thought we ruled out the return, but the leak finally leveled off around there.
Drained the shallow end down to about 1"... Changed the return faceplate & gasket, changed all 3 stair gaskets... Refilled it, adjusted PH, CYA, started SLAM. And now 14 hours later I'm down 1-1/4" from where I started...
I'm stuck. I can't afford a replacement liner this year. Any advice?