CH Levels not in correct range.

[ecsii]

I have never been able to get my CH levels into the recommended range. My CH is 150. I have added 75 pounds of Calcium Chloride de-icer (over a period of time) and it only raised the CH from 120 to 150. What would be the best thing to do to get it into range?

 

[mknauss]

How are you testing your pool water chemistry? If you have added calcium to the water, it is in the water. Unless you drain a lot of water and refill with low CH water.

 

[ajw22]

What does the label say about the ingredients of that Calcium Chloride de-icer?

Over what period of time?

Was water added during that time?

75lbs of calcium should raise your pool by 300ppm.

 

[ecsii]

I put the first 35 pounds of Calcium Chloride in over a two week period then the next 40 pounds over the next week. I don't have the label for the box so don't remember the percentage. Usually in the summer I add about one inch of water per week ( some times a little more from evaporation). It hardly changed the reading after adding 75 pounds. I will try to get a label on the material I used and post it here. Pool Math says I need to add almost 40 ponds to bring it up to the correct amount. That's what it showed before I added the 75 lbs.

 

[mknauss]

How are you testing your pool water chemistry?

 

[ecsii]

With a TF-100 Kit

 

[ecsii]

When I did the Calcium Chloride I was using and HTF 6 way test kit.