something on the bottom of the pool

[PoolDoc]

Bjaeram pics:

[PoolDoc]

Looks like it might be algae -- take a picture with the pump off, and the water still, if you want us to make a better guess.

Meanwhile, post another set of test results, after all that acid.

And, finally, remove ALL chemicals from the skimmer, if present, and begin adding 2 gallons of plain 6% bleach to your pools skimmer each evening. That will help your pool, AND clean any live algae out of your filter.