LC lowers CSI?

[Rocket J Squirrel]

This morning my FC was low at 3.5 and CSI was 0.20.

I dumped in a gallon of 10% LC, waited half an hour with pump on high & Polaris running, and measured again.

New FC was 5.5 and CSI was 0.19.

Nothing else was changed in PoolMath. I was surprised to see CSI drop. It's not even a factor in PM's CSI page. Is this a correct calculation?

 

[ajw22]

@Leebo can check with the squirrels in the server room.

My guess it is a rounding difference.

 

[Rocket J Squirrel]

They have squirrels?

Thinking maybe the 0.9 g of water in the jug took the CSI over the line.

 

[ajw22]

They have squirrels?

Thinking maybe the 0.9 g of water in the jug took the CSI over the line.

Or the salt the LC added.