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Maplewalnut
12-20-2010, 03:10 PM
What do you guys use for a PH meter for your ROs? Any recommendations or ones to stay away from?
802maple
12-20-2010, 08:07 PM
I don't use a PH meter, I use ph test strips that I get from a local dealer. PH meters would be more accurate though, would be my thought.
Amber Gold
12-20-2010, 10:27 PM
Is there anything special about the test strips you use? Can something like this be used?

http://www.grainger.com/Grainger/LAMOTTE-Test-Strip-4EVT9

I found this in Grainger. Pretty cheap. Can this be used?

http://www.grainger.com/Grainger/GENERAL-TOOLS-pH-Meter-3VXE7?Pid=search
Grade "A"
12-21-2010, 07:40 PM
Is there anything special about the test strips you use? Can something like this be used?

http://www.grainger.com/Grainger/LAMOTTE-Test-Strip-4EVT9

I found this in Grainger. Pretty cheap. Can this be used?

http://www.grainger.com/Grainger/GENERAL-TOOLS-pH-Meter-3VXE7?Pid=search

I have one like this http://cgi.ebay.com/Digital-PH-Meter-Tester-2-Pouches-Calibration-solution-/200556441816?pt=LH_DefaultDomain_0&hash=item2eb21870d8 , no problem so far.
sapman
12-21-2010, 09:25 PM
Matt, have you used it for awhile? I got one similar last year off ebay, and it worked fine for a few weeks, but then the reading went way off, and I couldn't even calibrate it. How are you supposed to get to the paper decently to trim it?

Thanks,
Tim
802maple
12-21-2010, 10:10 PM
Josh they are similar ut they go to 15 ph I think without looking. I get them from Mayottes Maple Supply in Fletcher, Vt 802 849 6810
Brent
12-21-2010, 10:43 PM
I don't know if current models are better than those of a few years ago, but they frequently go out of calibration and re-calibration is something to look into. I would guess re-calibrating in February would do you for a season.
Grade "A"
12-22-2010, 06:04 AM
Matt, have you used it for awhile? I got one similar last year off ebay, and it worked fine for a few weeks, but then the reading went way off, and I couldn't even calibrate it. How are you supposed to get to the paper decently to trim it?

Thanks,
Tim

I have used it for 2 years now. It still is working or was last I used it. I make sure I flush it out good after each use. Maybe I just got lucky.
Amber Gold
12-22-2010, 01:42 PM
What's the required pH range for test strips? They're just used to check the wash solution, correct?
maple connection
12-22-2010, 06:15 PM
Thanks for the info on the PH meter Matt. I ordered that same one off Of ebay. $10.00 free shipping.
Kevin
802maple
12-22-2010, 06:30 PM
Depending on what memebranes you have? Yes it is for your wash solution, I try not go over 11 ph no matter which membrane I am cleaning with the strips because I don't trust them even though I should.


What's the required pH range for test strips? They're just used to check the wash solution, correct?