We are just getting our fiberglass pool going this year and have let of all chemical levels just drop completely. We ran our pump all winter often and keep the pool fairly clean but have turned the SWG off and need to treat for some faint staining.
Tested the water yesterday- our numbers are:
I'm sure the salt is at 0 too.
(Not sure how relevant but I tested with my T100 kit however it has oldish chemicals)
While our numbers are low- I want to remove the staining from the pool walls. We used a Vit C tablet last fall to determine that they are Iron and have waited until now to work on the stains. They are pretty faint but are visible to me.
How would you recommend that we start? Do I need to drop the Ph? I have a jug or two of Ph Down from last season if necessary.
What chemicals would be best? What chemical adding order would I work on regaining control over the chemical balance?
FYI-I do NOT use any Borax- our dogs drink from the pool on occasion.
Thank you for any guidance and suggestions!