That's ok by me, but I've got no agenda here, other than counter your claim that hydro has to be complicated. That's just not true.
The hydro unit came with a ph test kit [ dropper/test tube]. A couple of months in, the
tap water stayed consistent, so I've barely used it in the years since, and moving on to home made DWC buckets. I follow the 3 pt GH Maxi series nute schedule every grow, and have never checked ppm - I don't own a meter - never have. Mix it in a gallon jug right from the tap, and pour it straight in.
The water temps are no concern - if I thrive in the house, they seem to, as well. An extremely cold winter did affect a grow 14 months ago, but nothing came close to dying and the yields were fine.
RIU is littered with many posts regarding my 'jarred spaghetti sauce' [ tm not pending ] approach: aka a 'lazy man's approach. If it was hard work, or challenging in some way, I'd find another option.
But it's easy - that's the beauty of it. No doubt in my mind that your much more detailed operation is a fine one. But I'm a results vs effort kind of guy. I get great results [ according to my own standards, and local feedback ] with very little effort - the chop and trim being the most demanding by far.
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