Oxidation Reduction Potential -- HELP

[hamop78]

OK ---- Evan ---- Time for me to eat a big slice of humble pie .

More investigation at a community pool led me to question the tests of yesterday. Seems that the guy from work told me that he discovered a problem with his equipment and that the "Standard" may have been contaminated. So Much for "dead on". OH WELL!!

Anyway ---The meter is definitely toast--



[post trimmed by PoolDoc]



Edit: I did a 2 point pH calibration of the Hanna meter with NEW standardized solutions --- 7.00 & 4.01 --- Hanna now recommends frequent calibration for accuracy

[hamop78]

Well 4 down --- ??? to go. Yesterday the Hanna showed an ORP of 550 --- I'm getting closer --- FC was 7.5. Other results about the same. This morning FC 6.5 ORP 534. Went to give better half instructions on how to get the readings ----- DEAD!!! ----- Won't even turn on. Does anybody make something that works???? DISGUSTED!!!


[PoolDoc note: This is exactly the sort of problem I had with Hanna products years ago!]

[Jakebear]

[SNIP! PoolDoc]


Would love to get a running dialog about ORP started somewhere. Perhaps in China Shoppe. I am a believer in the science but lack experience. I will be upgrading my ORP Instrument because sample rate is tooooooo slooooooow! Takes an hour to stabilize if I move it to a different location.

( PoolDoc Note: This is typical of ORP electrodes. )


[SNIP! PoolDoc]