Is there another (better more accurate) test available for CYA aside from the ole' watch the black dot dissapear?
And I like the weight shown on my driver's license more then the one my bathroom scales tell me.... Doesn't make it accurateHonestly, I like their CYA number better than the one I came up with.
If my other tests are the same as Leslie's, can we trust the one at Leslie's? It's a digital test..... I don't know how often or if they calibrate the machine.... I really don't trust myself with the CYA test. Honestly, I like their CYA number better than the one I came up with.
If you keep adding the mixture to the test tube, you will have a CYA number LOWER than you think. The more solution in the test tube, the LOWER the reading.The main issue is that the test instructions from Taylor are wrong (in my opinion). The dot does not disappear. If you add drops until it disappears you'll have a CYA level higher than you think. See below for what you should see. I highly suggest you get the 50ppm test solution so you know what you should be looking for.
Ah yes, but, once you get that lower number, you add CYA, increasing the number.If you keep adding the mixture to the test tube, you will have a CYA number LOWER than you think. The more solution in the test tube, the LOWER the reading.
I agree, the best thing is to buy the 50 ppm standards and run the test with that, see what I looks like when it’s complete with your own eyes in your own lighting situation.The main issue is that the test instructions from Taylor are wrong (in my opinion). The dot does not disappear. If you add drops until it disappears you'll have a CYA level higher than you think. See below for what you should see. I highly suggest you get the 50ppm test solution so you know what you should be looking for.
Are you suggesting your picture is where you measure "not seeing the dot"? Because I still see the dot.The main issue is that the test instructions from Taylor are wrong (in my opinion). The dot does not disappear. If you add drops until it disappears you'll have a CYA level higher than you think. See below for what you should see. I highly suggest you get the 50ppm test solution so you know what you should be looking for.
Are you suggesting your picture is where you measure "not seeing the dot"? Because I still see the dot.
I agree, the best thing is to buy the 50 ppm standards and run the test with that, see what I looks like when it’s complete with your own eyes in your own lighting situation.
Everyone hates this test though. If there was an $80 meter that have good results like my Apera PH60 PH meter I’d have it already.
Or just a photo of what it really should look like at end of test.I think the tf-100 should include a 50ppm test sample with the TF-100 kit. It doesn't have to be the giant bottle that you get when you buy it outright it just needs to be enough for maybe 1-2 tests.
Or just a photo of what it really should look like at end of test.
In that photo it looks like the dot “disappeared “. I think we’ve concluded that is an inaccurate indicator of end of test. The 50ppm standard indicates the dot will still be slightly visible.
In that photo it looks like the dot “disappeared “. I think we’ve concluded that is an inaccurate indicator of end of test. The 50ppm standard indicates the dot will still be slightly visible.