I am confused - you just statedMarty... I already did a slam 2 weeks ago but the stains remain. Oclt was 0 for almost a week. So we proceeded to puck testing and now AA (vit c) testing
I brushed a decent amount of algae from some walls and the floor, but I don't want to add chlorine so that my fc can drop and I can measure ph.
thanks again Marty. I attempted the vitamin c test on Saturday, but I will call it inconclusive or improperly done. Since most of the stains are along the curved union of the wall and floor, the sock wouldn't stay put. In addition, since the stains aren't a super dark color, it might be hard to see an effect. Perhaps my eyes saw a change last Saturday because my eyes wanted to see a change. In other words, the stains are semi-faint, and I don't know if the vitamin C will do a white out effect.AA treatment is for iron. If iron, it should react to a Vitamin C test. Has that been done? If so, any change in color at all?
thanks James. the answers:What is the original color of the plaster?
I think that you probably have iron, copper and scale issues.
What are the chemistry readings?
What is the CSI?
Have you used copper?
If ascorbic acid (vitamin C) doesn't work, sulfamic acid might work, but it will lock up the chlorine for weeks.
You are using Poolmath, though not storing your test data. Be sure to save your test data by touching the check mark on the data entry page.CSI? I don't know
I just saved the results, but it didn't calculate the CSI. I entered the numbers into the webpage, and CSI = -0.62You are using Poolmath, though not storing your test data. Be sure to save your test data by touching the check mark on the data entry page.
CSI can be enabled in Poolmath. Go to Settings and enable it. It is calculated by Poolmath. You do need a water temperature for accurate information.
the pool was resurfaced a year and a half ago, and it is not painted.Is the pool painted?
When was the pool plastered?
I think that you have copper, scale and iron.
Sulfamic acid might work but it locks up the chlorine for weeks.
Touch the Gear icon in upper right and go to 'What do you want to track?'. Select Track CSII just saved the results, but it didn't calculate the CSI. I entered the numbers into the webpage, and CSI = -0.62
I do have that selected.Touch the Gear icon in upper right and go to 'What do you want to track?'. Select Track CSI
A CSI of -0.62 is too low. You are in the zone of etching your plaster.