So you add the tap water on top.
I always did the opposite.
Whatever works.
Some older strains just need more,
Take the A5 haze for instance, loves 2.5 ec
I add the scale as there are two. 0.5 an 0.7.
TA, please correct me if I'm wrong -- mack, he is saying that EC measurements do not rely on the scale(s) that PPM measurements do. The addition of the scale used when discussing an EC reading alone is extraneous information.
I love Tahoe and this is a great setup. I'm tagged!