Quote Originally Posted by Amir View Post
OK. Here is my experience with the color Q. Got it a couple of weeks ago. Like the machine. All the test look good EXCEPT CYA! I have a CYA of about 50 and the machine shows 3 or 7 or 9 etc! After MANY conversations with tech support I was told that this is an issue with the machine and it is water temperature dependent. The temperature should be near 75 degree (mine is 81) to be accurate. The last conversation with tech support we left it at shipping the machine back to see if they can do better or receive a refund.
Regards
Amir

I am having the same problem with the CYA test. When I received the unit, my CYA level was around 40, based on the Pool Solutions test. About a week before, I installed a SWG, and following their advice, I added 4 Lbs. of CYA to raise the level towards 80.

The first couple of CYA tests with the ColorQ, was showing between 27 & 31.
The PS CYA test is showing around 60-70. Well after just adding 4 Lbs., I can know for a fact that the ColorQ test is way off.

But anyway, I am just going to test the CYA level several more times in the next week, and as long as the results remain consistent, I can then easily apply the correction factor. If the results start bouncing all over, I'll have to make the decision whether to keep it or not.

Other than that, all the other numbers look good. We will see what happens!!