XtraGood
Well-Known Member
Same water, two temperatures: that's not what you want to see!
Ph pen madness
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I used to use Oakton too. It seemed to take forever to register and after the bulb change it still took as long. I changed up to Bluelab and haven't regretted it.
Hollatchaboy
Well-Known Member
Bluelab for the win! I use a guardian and a long as I keep up with cleaning, calibrating, storing correctly, it stays on point.
I have to admit to not taking really good care of it. One reason I'm happy is it survives my careless attitude. It also calibrates easily and fairly quickly.
Hollatchaboy
Well-Known Member
Well I have to make an admission also, I didn't used to take care of it. It can take a beating for sure, but I go thru less probes if I clean it and store it properly.
That's why I love my Bluelab so much. She's taken a beating from me and keeps on calibrating and reading fast and accurate. I have to say the Oakton was also accurate just slow. I've looked at the Apera products and they look very nice, as an aside they have a really sharp looking DO meter, but when I finally manage to kill my Bluelab I'm getting another.
MickFoster
Well-Known Member
No calibration needed and never wrong.
Did I mention it's a hell of lot cheaper?
Did I mention it's a hell of lot cheaper?
XtraGood
Well-Known Member
I wonder what the fastest probe to give a reading is, has anybody raced the Bluelab against the Apera? They both about 20-30 seconds to go from reading the storage solution to final reading on the res, I've only used the Aperas?
Billy the Mountain
Well-Known Member
Even with a good meter, having some test drops is a good sanity check. The drops are both fast, accurate, consitent, and never need calibration.
Its easy to discern 0.1 pH by the color.
I have a nice pH meter, calibration and storage solutions, but use the drops 90% of the time.
hotrodharley
Well-Known Member
Or just use the damned drop kit.
icetech
Well-Known Member
I used those pens.. they are absolute shit... get a Apera PH60 pen.. i have had one for about a year and a half and it stays correct and never lets me down..
worth it.
Apera Instruments AI311 Premium Series PH60 Waterproof pH Pocket Tester Kit, Replaceable Probe, ±0.01 pH Accuracy: Amazon.com: Industrial & Scientific
Apera Instruments AI311 Premium Series PH60 Waterproof pH Pocket Tester Kit, Replaceable Probe, ±0.01 pH Accuracy: Amazon.com: Industrial & Scientific
www.amazon.com
Roger A. Shrubber
Well-Known Member
i've used the same nutes for so long i don't really need the meter any more, i add my nutes, add 8 ml ph down, then wait about 20 minutes and check them just...because ...99% of the time i'm sitting between 5.95 and 6.1, which is where i want it to be in coco...there is a day about once a month when they must do something at the water plant, and i'll have to add about 2 more ml of ph down, because i'll still be sitting a little above 6.2
Lenin1917
Well-Known Member
some nutes mix to murky for the drops, but yeah if the solution is clear that works just fine and is pretty impossible to fuck up unless you’re color blind.
Billy the Mountain
Well-Known Member
Nute color is not an issue in my experience. I use FNB which is quite dark once mixed, but in the clear vial its irrelevant.
Three Berries
Well-Known Member
My rainwater is usually in the mid 6s for pH. For some reason the last batch is 7.4. Even made me do a two step calibration of the AP20.