OK, and?
And? Didn't I see within the thread the use of high EC water?
Connect the dots if you can.
OK, and?
And? Didn't I see within the thread the use of high EC water?
Connect the dots if you can.
I can't.
Because RO water or not you still need to determine the PH and fix it if needed.
.....
......usually properly made soil can tolerate ph swings in the water... unless it is extremely high or low.
I do use test strips, they are not exact but its in the 4.0-8.0 range.
I also do use a similar LC recipe with sunshine mix #4 only and 2 tablespoons lime per gallon.
Even better... GH sells a pH Test Indicator Kit... you fill up the vial about 1/2 way with the runoff/nute solution/your pee, etc., then add 5 drops of the indicator, and compare the color. It's really accurate (I've compared it to my meter), easy to use, and goes from 4.0 in whole numbers up to 6.0, then 6.5, then 7.0, so you even get the "sweet spot" of 6.5 in there. The best part is, it's like $12 and lasts a long ass time. If you can't afford the meter, shit can the strips and get this instead- you'll be glad you did.
FK
And that you won't know unless you test it.
High Quality meters are the most dependable ones to do that with but one can use paper strips or Aquarium/Pool liquid tests as well as long as they cover the proper PH range.
On a side note using water with off PH values over an extended period of time never is good, properly made soil or not.
........