1.5 week old plaster, seems good but...

[JonathanD]

Want to make sure I am OK a few weeks after re plaster.

Test done around noon.
FC- 3
CC-.5
PH- 7.5
CH-350
TA- 60 (going to get baking soda today)
CYA 35 (ish....still getting used to the test)

The Pool math calculator is saying my CSI -.12 What should I do to get that number closer to 0?

Picture for fun

 

[YippeeSkippy]

Per PoolMath if you brought your TA up to 80,, and your CYA to 50, your CSI would be ZERO

 

[JonathanD]

Why is the target CSI at -0.11 on the pool math calc, when right below the CSI comments it says "Less than -0.6 is suggestive of problems for plaster, tile, stone, and pebble pools.
Greater than 0.6 is suggestive of problems for all pools."