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The FAS-DPD Chlorine Test should not difficult if you are doing it correctly. 10 ml pool water, reach as far down in the pool as you can. 1 scoop of R-0870 powder. Swirl. It will turn pink if chlorine is present. Count drops of R-0871 reagent. Each drop of R-0871 represents 0.5 ppm of...

Why not use a pH meter as someone mentioned earlier? https://tftestkits.net/pH-Meter-p95.html Mine works well and as long as I wait for the numbers to stabilize, gives me consistent readings.

It seems like what you are doing would be fine. Consider saving up for the SpeedStir, though. It's definitely the way to go--as others have already said.

I definitely agree on the SpeedStir--it makes testing fun, sort of. On the SampleSizer, though, I have resisted buying one because I can't bring myself to spend $22 on a piece of aluminum. After a bit of research on how to use it, I realized it also forces you to use the specific Taylor...

I use the light on the SpeedStir to help determine the last drop. There will be a very slight pink tinge left and one more drop removes it. I do not subtract that last drop. It sounds like you would go one more drop to make sure there is no further change. If you do that, how does it impact...

The tftestkits.net instructions that came with my TF-100 kit do not even mention the 25ml test--only the 10ml, so now I see that this comes from the Taylor kit instructions. For the 10ml test, I follow the tftestkits instructions, which is one slightly rounded scoop of powder. So, I have never...

The sock will filter out any big chunks of CYA and what comes out of the sock should dissolve easily in the return jet stream. When you squeeze the sock, a small cloud of CYA will be released but it will be dispersed quickly. Mainly the sock slows the release of the CYA to avoid undissolved...

I believe the TF-100 kit says to use a single heaping scoop. That's what I do, just making sure the powder is mounded up a bit and dump it in. I think that two scoops, level or not, would be a waste.