The brown residue started out as what looked like "sand" mostly in the seams of the liner. On one day the entire bottom of the pool had a layer of this stuff and when I put the Aquabat cleaner in you could clearly see the tracks of where it was cleaning.
After I put the HTH clarifier in and ran the pump ovrnight the next morning the pool seemed clear but wth the residue on the liner. After putting in the Aquabot and running for awhile the water clouded up.

I am pretty sure we do not have much iron in our well water. We test it often and use it as our
potable water source. There are no iron stains where we use the sprinkler, etc.

Could there be another issue?