Quote Originally Posted by williebounce
I still don't kno when to use the tester. Do I test the water before & after I add nutrients to the water?. As far as the 800 PPM solution, if I need to use it how much do I add? Teaspoon? Tablespoon? A cup? Can I use this tester to read the PH levels? Is there anyway somebody can guide me step by step with using my system? I'm like so lost at the moment... I got all this stuff & don't have a clue what to do... There has to be somewhere & someone that can break it down step by step for me...
Using the tester to read the pH... damn... we need the exact name of the instrument. Post it here and I'll do a google and let you know how it works.

Now, when you're going to use the 800ppm calibration solution, here's what I suggest:

Get a vial. Glass vial with tight cap would be best. Put your 800ppm solution in there. How much? Enough to cover the entire probe. Always use tap water to rinse your probe... for what ever reason. If you take it from here, wash it. If you're going to use it, wash it. If you're going to take it out of your rez to test your new nutrient mix, wash it. This prevents cross contamination.

The 'wash it' is very important when you're going to use the 800ppm to calibrate... you don't want to mess up that 800ppm value. If the probe has residue from your nutes, and you insert it in the 800ppm solution, you're going to get the calibration solution contaminated... then it's no longer 800ppm. Don't be scared dude! Just wash the thing well with tap water.

How much of this 800ppm solution do you have? If it's little, then pour it all into the glass vial. But if you've got plenty (16oz or something), then pour some of it in the vial... enough to cover the probe. If for whatever reason you think your 800ppm solution is contaminated, toss it out and pour some new one into the vial.

BTW: I think I'm focusing too much on the freaking 800ppm solution... like I said, calibration (I think) isn't a daily thing. It's more like once everyu 30 days or something... or if you think you're getting wrong measurements.

Sorry for the quasi-clear replies, but I'm in a hurry... running out the door to have a few beers. WHAT people?! I'm all out of weed!

Best,

-turtle420