Verify the correct CH target...

[roguegeek]

Here's where I'm currently at:

Test	Reading
FC (ppm)	5.5
CC (ppm)	0.0
pH	7.6
TA (ppm)	70
CH (ppm)	190
CYA (ppm)	75
Salt (ppm)	2000
SWG (ppm)	2700
Temp	62

According to the water balance documentation, CH needs to be around 350-450. Just got back from my local pool store where they were saying it really shouldn't be much above 200. Yes, they know I have a plaster pool. Which is it and what's your best guess as to why the other source is saying otherwise?

Thanks!

 

[Jimrahbe]

Rich,

Look at your CSI...

Using your numbers above you are at -.76 or corrosive

Increasing your CH to 450 drops you to -.34 and increasing your pH to 7.8 gets you in the -.16 range...

You only have two choices.. believe the Pool Store or us... and remember, we are not trying to sell you anything...

Jim R.

 

[woodyp]

Pool School - Recommended Levels

There's our answer. Best guess on their answer?............cause it's their "best guess".