1. We are currently experiencing issues with viewing and uploading images, our team is working on the issue.
    Dismiss Notice

Bluelab ph pen dries out...

Discussion in 'General Marijuana Growing' started by shiva71, Feb 1, 2018.

  1.  
    shiva71

    shiva71 Well-Known Member

    Hiya
    As title says, i got a Bluelab ph pen, and despite clear intructions to keep the probe wet Ive let it dry out. Is it farked?
    Cheers!
     
  2.  
    Lordhooha

    Lordhooha Well-Known Member

    Is the glass bulb in there cloudy? Does calibrate when using the solution?
     
    since1991 and Stink Bug like this.
  3.  
    Stink Bug

    Stink Bug Well-Known Member

    IMG_1591.PNG I would soak it in storage solution for 24hrs to rehydrate. Then clean and see if it will calibrate. That's about the only way to know.
     
    theslipperbandit likes this.
  4.  
    shiva71

    shiva71 Well-Known Member

    Great thanks for that, ill order some storage solution, whatever that is!
     
  5.  
    Lordhooha

    Lordhooha Well-Known Member

    I have always used whatever water I dip it in but I use my well water. To note the storage solution is simple saline water.
     
    Dr. Who likes this.
  6.  
    shiva71

    shiva71 Well-Known Member

    Yeah it seems you can make a storage solution with a pH4 buffer solution with a pinch of salt...would this be ok?
     
  7.  
    ANC

    ANC Well-Known Member

    You know what doesn't dry up on you suddenly?
    pH measuring drops.
     
    since1991 likes this.
  8.  
    Dr. Who

    Dr. Who Well-Known Member

    On a Blue lab or a Hannah multi meter. Once gone dry, your most likely going to be buying a new probe to make it work right again.

    Found that this HM model pH -80 is the most durable pen ever used... She dried out for over a year. Soaked her for 14 hrs and recalibrated it. Shell move to .1 high and sit that way for over a month.

    For the price, feel this is the best one out there short of a lab quality and over $400 per handheld unit.

    https://www.ebay.com/itm/HM-DIGITAL...646355&hash=item2a9a4a5778:g:zk8AAOSwPpZaPSTV

    So, if you have to get another probe for that Blue lab. Get the HM one instead, you'll save money over buying a new probe!
     
    Budley Doright and since1991 like this.
  9.  
    since1991

    since1991 Well-Known Member

    The Blue Lab pens are nice but the kicker is the probe isnt replaceable. You gotta buy a whole other pen. Alot of brands and models from Hannah..Oakton..Milwaukee..have pens where when (not if - they are finicky by nature) the glass bulb takes a shit..you can just buy that alone and pop it in. The Blue Lab pens...nope. I own the Blue Lab combo meter that has a seperate EC/TDS/Temp probe along with a replaceable pH probe. A little pricey compared to the pen but shes been hanging in there with me for quite awhile now.
     
  10.  
    since1991

    since1991 Well-Known Member

    HM makes some of the best units. I have an HM TDS pen in my veg room that has been with me for a very long time. Good piece of gear.
     
  11.  
    Stink Bug

    Stink Bug Well-Known Member

    No matter the make. Proper storage and care is necessary for long term performance and accuracy. My Bluelab pen is over 3 years old and still going strong. Due to proper care and maintenance.
     
  12.  
    Cold$moke

    Cold$moke Well-Known Member

    True but some nutes are next to impossible to tell a corect color
     
    Stink Bug and since1991 like this.
  13.  
    Cold$moke

    Cold$moke Well-Known Member

    I bought a bluelab constant read
    So its always wet lol
     
  14.  
    NrthrnMichigan

    NrthrnMichigan Well-Known Member

    The Blue Lab pen I have is nearly 5 years old. I neglected my pen for over a year when I purchased a Blue Lab Multi meter. I re hydrated the pen, calibrated it and works great.
     
    zem, since1991 and Stink Bug like this.
  15.  
    since1991

    since1991 Well-Known Member

    I use pH drops for backup but they are worthless if your nutrient solution has dyes or if you use black coffee like kelps and humic addys. I also keep a yellow cheapo pen for backup. Clean and calibrate the pH meters often. And store in kcl solution when your not using it. Best I can tell yall.
     
  16.  
    Stink Bug

    Stink Bug Well-Known Member

    Dried up or not. The reagent still has a shelf life.
     
    Last edited: Feb 2, 2018
  17.  
    Stink Bug

    Stink Bug Well-Known Member

    Litmus paper rather than reagent drops gets you around the Nute stained water issue.
     
    since1991 likes this.
  18.  
    ANC

    ANC Well-Known Member

    Stop using nutes with colorants in then.
     
    Observe & Report and Dr. Who like this.
  19.  
    since1991

    since1991 Well-Known Member

    I sometimes add liquid humic acid and kelp extract. They are not nutrients. Or very little nutrient. They are additives. And they are black. Color drops dont work for me. Btw..Hanna has a new meter out called the Groline. An all in one probe and all in one calibration satchet. Looks pretty kewl.
     
    Cold$moke likes this.
  20.  
    since1991

    since1991 Well-Known Member

    Bromothymol Blue has a shelf life???
     

Share This Page