Orange stains if water at ideal levels!

[CaptnKebec]

Hi all,

I installed a SWG 2 weeks ago. I got my water analysed, added salt and after a couple of days I succedded to balance the correct level for the PH, the chlorine and the total alkalinity.
My problem is if I keep the total alkalinity between 80 and 120 as recommended, all the walls of my pool are turning orange! :grrrr: (I've got a fiberglass pool)
I have to keep the alkalinity below 50ppm to have perfect white walls.

Is that normal for a fiberglass pool?
Can I add something to the water to keep it between 80 and 120 and have no stains?

Thanks for any advice.

 

[Guest]

post a full set of test results including tests for Iron.