Wile e Peyote
Who, what, why and where
looking good man about your res when your using the recycling system your ec will go up if you are feeding with run off i think your ec meter measure dissolved solids in your res if your watering with run off your washing the salts out of your coco (a good thing) so your ec will go up (more dissolved solids salt) mine went up to an ec of 2.8 from i think about 1.2 over the course of a week but never seemed to hurt the plants but freaked me out big time ha ha just keep doing what your doing and you will haveI filled the res at 1.7 eC. after I replied to you last night I decided to check the eC and it was at 1.9 eC and this morning it was at 2 eC so I added fresh water to bring it back down to 1.6 So I am assuming that 1.6 was ok but 1.9 is not. Im just going to maintain 1.6 eC.
I feel like I read on @Truu guide that if eC comes out greater then what I put in shes getting to much. I am not checking the runoff I am checking the res but that must read the same minus evaporation. I really have no problem so I am not concerned but I am going to do some reading on that tonight .
Thanks for stopping by Dude.

