Ph meter vs Taylor color indicator

revitup

Gold Supporter
Bronze Supporter
Nov 30, 2019
334
Pawleys Island, SC
I collect a sample and conduct testing in the garage at a bench I set up for it.
I really like my meter, much better than the drop/color test. I've never found my PH60 meter to be out of cal. I'll calibrate every 4 - 6 weeks or so anyway but when I just stick it in the 7.0 cal solution to check it it's pretty much always dead on. When checking pool samples it'll drift up for a few minutes before the reading stabilizes but being that it displays two decimal accuracy, that drift is over a .1 or .2 range. No big deal, it's close enough if I don't wait. It usually takes me 5 minutes at the bench anyway.
 
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Dirk

Gold Supporter
TFP Guide
Nov 12, 2017
6,844
Central California
I was taught here to sample mid-pool, away from skimmer and returns, and about 18" below the surface. I've never done the experiment myself with drops, but it'd be interesting to know if one of you with a ".01" meter could detect measurable differences between different areas of the pool: surface, 18" below, bottom, deep end, shallow end, sun-lit, shadow, in the skimmer, etc. Or if mis-handling the sample makes a difference: between gently carrying it back to a test bench vs shaking it up a little, Or if testing at home is measurably different than driving to Leslies, maybe a 1/2 hour later, with a little jostling in the front seat. Which would contribute to the justification for our "test with your own kit" mantra...
 

CrystalRiver

Well-known member
Jun 19, 2020
236
Massachusetts
I was taught here to sample mid-pool, away from skimmer and returns, and about 18" below the surface. I've never done the experiment myself with drops, but it'd be interesting to know if one of you with a ".01" meter could detect measurable differences between different areas of the pool: surface, 18" below, bottom, deep end, shallow end, sun-lit, shadow, in the skimmer, etc. Or if mis-handling the sample makes a difference: between gently carrying it back to a test bench vs shaking it up a little, Or if testing at home is measurably different than driving to Leslies, maybe a 1/2 hour later, with a little jostling in the front seat. Which would contribute to the justification for our "test with your own kit" mantra...
Just for giggles, after taking a proper reading with my Taylor kit, I shook the tube for a few seconds. Increased the reading by a solid 0.2. Then I shook it for a minute or two - no further change. I suspect that if TA is quite high, you're going to get a bigger change from shaking.
 
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Dirk

Gold Supporter
TFP Guide
Nov 12, 2017
6,844
Central California
Just for giggles, after taking a proper reading with my Taylor kit, I shook the tube for a few seconds. Increased the reading by a solid 0.2. Then I shook it for a minute or two - no further change. I suspect that if TA is quite high, you're going to get a bigger change from shaking.
Great. Please get started on all the other experiments I required for my analysis! 🤪