No hydro guy either. There are a few i trust here there though. What is the question?
Ok so do it right away so far my soil plants have been growing like crazy haven’t had to check them I just don’t water to much
The question is how to check the ph run off in hydroponic or do u just check the Rez as u go
If it was mine i would do it right away then the positive is less chance of probs in the future and you can get your readings.
Ok 
I’ll give it a try and see thanks
Just check the res. The roots are seeing the solution as is.
Ok it’s the ph supposed to be between 5.5 an 6.3 it says different every ware I look
What kind of system is it? Seems for most right at about 5.8 is pretty good.
Buckets. 3 DYI tubs I change water once a week I didn’t put air stones I put tubes
ya wanna suck up runoff with a turkey baster , squirt into small shot glass. Then check. I put plastic plate with holes in it over the runoff tray to elevate bottom of cloth pots out of runoff water
Ok thanks for the pic I understand now I can’t read vary good but pictures tell the story
For your next question, lol. What do I do next? My plants are netted, ya can’t move the pots much, the saucer under the plate is full of runoff. Fungus gnats started liking the sitting water. Harbor Freight to the rescue… put battery operated pump thru the hole in plate and it will be empty in 5 seconds. This little pump surprised me how adaptable It is in the grow room. It pumped my rdwc dry in just a few minutes during res changes
So like a drain to waste on drip tubes? Sounds like @bryan has you set then.
No there from Walmart air tubes instead of air stones they bubble pretty good thanks for checking on me @dbrn32
With some patience it is possible to flush plants in place while fully netted. Slowly pour 5 gallons into top and remove it with pump. There is probably a more effective way to do it, but hell the pump cost $15
Yea I usually put them off a 5 gallon water tell it comes out and check it but I was using drops to check it now a pen
I agree. For whatever reason i was thinking this was rdwc system is all. Just a little confused.
Yes I have both now dirt dwc and home made tubs just seeing different ways that makes it easy he’s got a nice jaget there
What kinda nutes you use for soil and dwc