Strange pH test

[KurtV]

...
But pink . . . is NOT a color that would normally EVER be produced by a phenol red solution, regardless of pH, and regardless of whether R-0004 or R-0014 is used. The only pink I know of, with any of the chemicals in the kits added alone, would be DPD in chlorinated water.
Ben, The 7.8 and 8.0 pH colors on my comparator tube (Taylor K-2006) are both very pink (the 8.0 is a darker and richer pink). I confirmed this with several people, include non-blood relatives, to rule out my color-blindness as a cause; they all agreed.

Since the R0014 is NOT a reagent we fill, I can think of only a couple of possibilities:

• Somehow, we sent you an old bottle of R0002 DPD solution that had gotten mixed in with the R0014. I would have said this was impossible, since we haven't kept any of that around for several years, but after all the problems I'm having this season, finding out that we'd made yet another 'impossible' error wouldn't surprise me.
• Alternatively, you got a bottle of Taylor R0014 that was misfilled. Taylor has (as have we) misfilled or mislabeled bottles before. This is the scarier alternative, since if true, it's unlikely we got only ONE bottle of bad stuff.

Either way, if you'll email me with your name / address, etc. and reference this thread, I'll try to send out some known good R0014 to you this week.

I definitely got the 0014 from you but it's not worth the hassle for either of us to replace it. The lot number is 1136D if you're going to bother tracking down want went wrong; please don't do so on my account.

...

P. S. Thanks for the websites.

[Poconos]

Thanks for killing it Ben. One less thing to quibble about.
Al

[PoolDoc]

Kurt, is the stuff you have labeled R0014 or labeled R0002?

I'd like to get it back, if it is R0014, simply because it's very unlikely you were the only recipient. But, I don't want to send out a general warning, without having tested the stuff myself, and then checked with Taylor.

We get the R0014's in 144-packs, all from the same lot. So, if it is labeled R0014, we may well still have some (I'll check the lot number on what we have now -- thanks!.) If we don't, then odds are 143 OTHER people have messed up phenol red, too.

Of course, there's some chance that you're seeing a wierd reaction I'm not familiar with, and if so, I need to know about that, too.

So . . . any additional info would be great.

Ben

[KurtV]

Ben,
0014. I'll be happy to send it back if that helps you.

Kurt

[fcfrey]

Thanks for killing it Ben. One less thing to quibble about.
Al

DITTO from me!!