Question about CSI

[drestes]

Hi all - I tested my water today and everything looked to be in range. Below are my test results:

FC 4
CC 0
pH 7.5
CYA 70
TA 60
CH 50 (pool is vinyl liner)
Salt 3300
Current Pool Temp 76

I plugged my results into Pool Math and got a CSI of -1.35, well outside the suggested range. Do I even need to be worried about CSI since my pool is vinyl? I don't have a great understanding of the whole CSI thing

 

[Mr Bruce]

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

So don't sweat it!

 

[pooldv]

That's right. Vinyl pools only need to worry about high positive CSI, above 0.6.