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    ph tester needed

    i have bought 2 electronic ph testers that dont seem to work, can anyone reccomend a ph tester that they use

    #2
    I use this one
    https://rover.ebay.com/rover/0/0/0?m...2F113574106842
    A garden is its own perfect world
    Where everything has a place
    Every leaf, every stone, every speck of dirt
    But where's my place? ~M.P.

    https://forum.growweedeasy.com/forum...plant-training

    Comment


      #3
      What do you mean by not working? Did you calibrate them?
      4x4 600w HID (empty for the summer)
      3x3 400w HID with 4 skywalker kush (new strain for me)
      2x2 LED 300w Mars Hydro with 4 mother strains
      running all simultaneously for a perpetual harvests.

      Comment


        #4
        I use this one: https://www.amazon.com/HM-Digital-Hy...web_2593569011

        It's 2 years old; I always leave it soaking in 7.0 pH calibration solution that I buy in bulk here: http://www.omega.com/pptst/PHA4_7_10.html?bt=cart
        4/15/19 Grow #10: roomie 1: Green Crack (Cali Con), OG Kush (RQS), & Dr. Greenthumbs Em dog (HSO);
        roomie 2: C99 (G13 Labs), White Widow (DP), & Shiva Skunk (Sensi).
        2 BCNL Roommate hydroponic boxes w/ 400w COB LEDs & attached chillers.

        Future Harvest nutes

        Comment


        • oldjarhead100
          oldjarhead100 commented
          Editing a comment
          you give the best links ATU , the birds must know I'm talking to you they keep circling me ,you know hootie chases buddy around me but is to slow for buddy lol

        #5
        I use the same meter as ATU and it is real important to not let it dry out cause its junk then , bring it in to a store and they will test it for you and show you how to calibrate it if you dont know. and it takes longer than 15 seconds for ph to balance out .In fact how long does everyone leave there ph meters in nute mix before taking the reading , I go until it stops changing 20 seconds
        new grow room built summer of 2017 ,argo max tent for veging ,big kahuna reflector, 1000hps with added leds for the full spectrum . 15th indoor grow ,5 years outside gorilla grows(stealth is the key),veg under t5s growing autos under 300w leds
        current grow https://forum.growweedeasy.com/forum...-new-grow-room

        https://forum.growweedeasy.com/forum...-auto-vs-photo


        https://forum.growweedeasy.com/forum...-week-4-update

        Comment


        • Toker1
          Toker1 commented
          Editing a comment
          Yes, I test until I reach stability. I swirl around the water with the ph pen and test while mixing the water around. This ensures PH uniformity through out the medium. Then I clean with DI water and store ph probe bulb in a storage solution. Calibrate 1-2 per year.

        #6
        Het RC...I had a Nutradip meter that I used for fifteen years, it needed new probes every few years, even though they were well looked after. As everyone will tell you...you can't let them dry out and you should store them in pH 4.0 test solution or storage solution. I'd recommend that brand based on my experience

        My new meter is a BlueLab combo meter. I've had it for about a year and a half, and it's great, but it displays one output at a time. I liked the Nutradip better, it displays all three reading simultaneously, and doesn't run on batteries, which may or may not be an advantage I suppose.
        3ft x 3ft tent
        California Lightworks Solar System 275 with spectrum control
        GH Floro - DWC
        Current grow - Humboldt Fem Blue Dream

        Comment


          #7
          never failed me yet.
          "Treachery and Old Age will overcome Youth and Skill"

          Current grow. All hermied seeds.

          1 Purple Kush (5 year old seed)
          1 Somango (1year old seed)
          2 unknown (6 year old seeds)
          2 Black Jack (2 year old seeds)

          2nd Grow

          3 Sour Diesel (Blim Burn)
          3 Girl Scout Cookies (420 seeds)

          Comment


          • 9fingerleafs
            9fingerleafs commented
            Editing a comment
            i too think the strips are the best choice, specially the ones with the 5-9 ph range. i cannot get them locally and/or cheap

          • Toker1
            Toker1 commented
            Editing a comment
            If you are testing 1-2 buckets, sure. I can see that. Now if you are testing 100 buckets, that would require way too many man-hours to use the strips.

          #8
          i have the same that ATU and OJH have but i also have a cheap yellow chinese one and the yellow one its always spot on and needs no calibration, the fancy one needs calibration once a month at least. buy a cheap yellow one i would say
          current grows
          https://forum.growweedeasy.com/forum...-coco-question
          https://forum.growweedeasy.com/forum...picture-update

          Comment


          • Toker1
            Toker1 commented
            Editing a comment
            Agreed, my cheap $10 no name brand yellow PH pen has lasted me about 5 years now. I went a year with no calibration at all and the pen was only .1 off the calibration solution rating.

          • starramus
            starramus commented
            Editing a comment
            Tariff man's gonna make us pay $12.50 for these cheapsters!

          • 9fingerleafs
            9fingerleafs commented
            Editing a comment
            hahaha yeah, we should all stuck up on Chinese goods

          #9
          Originally posted by rcsaw View Post
          i have bought 2 electronic ph testers that dont seem to work, can anyone reccomend a ph tester that they use
          You might try soaking them in distilled water for about an hour. I resurrected one of mine with this procedure. Give it a shot you've got nothing to lose.

          Comment


          • starramus
            starramus commented
            Editing a comment
            are your batteries OK?

          • Mr.furley
            Mr.furley commented
            Editing a comment
            Good info starramus

          • HappyDaze
            HappyDaze commented
            Editing a comment
            I think soaking in pH 4 calibration solution or KCl would be better. Based on what I've read, keeping a probe in RO or distilled is what screws them up. Oakton, BlueLab, Hanna....all of them say the same thing.

          #10
          Some manufacturers recommend soaking in distilled water. I did purchase MA 9015 pH electrode storage solution, but I prefer neutrality. This method has worked on two different manufacturer’s pens. The results have proven satisfactory for me.

          Comment


          • starramus
            starramus commented
            Editing a comment
            Could it be that the “high end” manufacturers just might want to sell you expensive solutions? I would need to see the science to change my mind.

          • HappyDaze
            HappyDaze commented
            Editing a comment
            Could you name a manufacturer who recommends distilled water? No one recommends what you're suggesting.... KCl is what you want that's what's IN the probe, and pH 4 reference solution will work...at $10 a liter, it's way cheaper than a new probe....those "High end" manufacturers supply equipment to real scientists, not just hobby gardeners, so it pays to learn from them.

          • Toker1
            Toker1 commented
            Editing a comment
            Agreed. You should not be soaking in DI or distilled. Just for rinsing off solution films over the sensor after testing.
            But not all probes are the same. Some have the fluid (no soaking required) and others do not (dry bulb = dead meter). I have seen $3000 professional meters turn into paper weights because some moron let the bulb go dry. This was at a hydro power plant and had nothing to do with gardening. More for corrosion effect on metal.
            http://www.just4growers.com/stream/h...-ph-meter.aspx
            Last edited by Toker1; 06-16-2019, 07:54 PM.

          #11
          HappyDaze It seems you are determined to be right. I stumbled upon this solution myself, but later picked up this manual with a $14.95 pH pen. See attached photos. As you can well see the manual says soak in distilled. Since you are a self acclaimed scientist where is the "science" I requested? Click image for larger version

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          Comment


            #12
            It even worked on this higher end pH/TDS meter which didn't cost and arm and a leg. You do realize that scientists have unlimited expense accounts?

            This meter is kind of nice, because you can change out the probe as it has a coaxial cable connector. That is the usual failure the electrode. This is the pH/TDS-2983 Multi parameter continuous measuring instrument. (Damn sounds "scientific"!) I don't like getting into flame wars....Go do a bowl!

            Comment


            • HappyDaze
              HappyDaze commented
              Editing a comment
              Flame war?? haha...do what you want with your dollar store gear. Advising others to follow along? meh, not so helpful to the community.

              Just sayin...

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