Have 10oz of cya in a sock in my skimmer basket. Safe to swim or should I take it out? Thanks!!
Thanks.....I'll try that....so don't stare at it 'trying' to see the dot. Is there any more accurate/more precise test? I hate the 'can I see it, well maybe, add more solution, etc. etc."?If you added the CYA to the water, it is in the water. Give it another week and test again.
When you do the CYA test, try this next time.
Once you have your solution ready, back to the sun, etc. Fill the vial to a line, say 80, lower the vial to your waist level and glance for the dot, you see it, add solution to the 70 line, glance, see it, repeat until you no longer see it with a glance. Then use the CYA value one step above the line you read. So if you stopped at 50, use 60 ppm CYA.
The vial is in logarithmic scale. So it is not viable to interpolate between the lines. Just use the whole numbers, such as 50, 40, 30, ....
This is what I see on my test. This is a test using the CYA reference solution. It is calibrated for 50ppm. So you fill to 50 and look at it and it is supposed to be what you see for a correct test. As you can see, the dot is still visible. I go off of this view and have never had an issue related to CYA being too much or too little.Thanks.....I'll try that....so don't stare at it 'trying' to see the dot. Is there any more accurate/more precise test? I hate the 'can I see it, well maybe, add more solution, etc. etc."?
Nope this is the test.. The "glance trick" is so you don't see the optical illusion that is created by staring into the circle framed by the top of the vial. If you stare too hard you will be seeing googley eyes everywhere for the next hour.Thanks.....I'll try that....so don't stare at it 'trying' to see the dot. Is there any more accurate/more precise test? I hate the 'can I see it, well maybe, add more solution, etc. etc."?
Is there any more accurate/more precise test?
Hmmm. Interesting. Mine advises to not be able to see dot. I just checked again using waste level and looking down. Could def see it at 100 90 and 80. Couldn’t see at 70. I hope I didn’t overshoot it. But I guess 80 is still ok if it creeps up?This is what I see on my test. This is a test using the CYA reference solution. It is calibrated for 50ppm. So you fill to 50 and look at it and it is supposed to be what you see for a correct test. As you can see, the dot is still visible. I go off of this view and have never had an issue related to CYA being too much or too little.
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Hmmm. Interesting. Mine advises to not be able to see dot. I just checked again using waste level and looking down. Could def see it at 100 90 and 80. Couldn’t see at 70. I hope I didn’t overshoot it. But I guess 80 is still ok if it creeps up?
If you happen to have an HPLC instrument in your garage (and if you do, we should DEFINITELY be friends!).Is there any more accurate/more precise test?