So I have had some metal staining last year. Tested via vit c tablet and it cleared right up.
The pool is topped off via a well that has iron and iron bacteria. I try to avoid it but sometimes there is no other choice.
Opened the pool early last week. Got chlorine down to 0 and added 4lbs AA. Stains at the shallow end were gone. Some remained at the deepend.
Left the chlorine Gen off due to cold water [50c] added Jacks purple stuff and some kemtek algecide.
Returned to check the pool this weekend. Stains had faded at the deepend but returned at shallow. So I added another 4lbs of AA and the pool has turned brown before my eyes. The water itself appear clear at least by the glassfull
Chlorine is still 0 (no chlorine source) but PH has dropped to 6.8 expected due to all the AA but it seemingly had the opposite effect on the staining this time (it kind of lighted a bit in places first. It over the course of not even 2 hrs the whole pool is brown)
Any help or advice great fully received as I am at a complete loss for how to proceed