meter

  1. El Gusanito

    Ph meter problem

    Hi looked at the end of the ph meter milwaukee 600 had lots of builg up so soaked in CLR for a few minutes then rinsed in fresh water used a Q tip to clean build up then rinsed again. Pulled out the test solution to caliberate and no way it would only go 5.7 at the top and 4.6 on the bottom...
  2. P

    I need some clarification on PH and meter reading

    These questions may seem elementary but the more I read the more confused I am getting. I have grown 3 grows of bag seed. I'm currently in my 5th week vegging DP White Widow fems. Questions: I am growing in ProMix-BX, a peat based mix from AGWAY. Is this considered Hydro or Soil for...
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