When I do the alkalinity test. When I mix chemical 7 and 8 it turns purple not green
Alkalinity
- Thread starter Terry24
- Start date
Welcome to TFP!
If you add a couple drops of R-0009 to the purple solution does it change color?
If you add a couple drops of R-0009 to the purple solution does it change color?
Can you share a picture of it? I have a couple ideas but seeing the actual solution will help narrow it down.
First picture is with number 7 and 8 mixed. Second picture is after I added 10 drops of R-0009
That you for sharing the pictures, that does clear it up. That is what I would call red (the scale behind it makes it look a bit purple, but it's red) and means your alkalinity is zero. That's bad as it means your pH is off-the-scale low and potentially doing damage to your pool and equipment.
Any chance this is a new plaster pool? If not then this needs corrected ASAP. Adding enough baking soda to get the TA up to 50 ppm would be a good start, then retesting after a couple hours to make sure the TA and pH have increased.
Any chance this is a new plaster pool? If not then this needs corrected ASAP. Adding enough baking soda to get the TA up to 50 ppm would be a good start, then retesting after a couple hours to make sure the TA and pH have increased.
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