Sounds like the jell coat on the pool needs redoing.
It sounds like there is a broken water line under the sand. Perhaps from a sprinker system?
Sounds like some of your radials are broken
Scrape some of it of the pool and take it to your pool shop, it sounds like it might be black algae, the shop wit have something to kill it of this is really hard stuff to kill so its good that the pool is empty.
The human gene pool is exactly what it sounds like. This is the collection of genes found in the human race.
Check the map sensor.
sounds like you have a leak some where
It means just what it sounds like -- something is really hard.
The water will level itself so you can live with it if you would like. Otherwise, emptying the pool and setting it up again sounds like what you have to do.
Is it hard to keep running sometimes when you try to restart it ???? It sounds like the idle air control valve. That's what the problem with my '97 was.