Thanks, the pool has a diamond brite finish. I have not tested for iron. new house and new pool. i have tested for copper--Pristine Blue and it was 0.1. the stain has been getting better. i just poured 2 qts Jacks Magic The Blue Stuff in and We shall see what happens next week.
it has a auto cover, heater-chiller, no salt, no chlorine or bromine.
test results as of 10-19-09 are
ph 7.4
total alk 130
harndess 200
so i should get the water tested for irons
pool was cloudy when opened in may pool was finished in Nov of 08 and never opened, just filled with water.
the thing in no stains on the tile or the white grout lines.
Thanks for any help