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Just noticed something rather odd..

Since last night, I have been fighting the pH inside the res. Couldn't figure out why it was jumping to over 6.5 when the solution I was adding was 5.6. Every time I added more solution I would have to drop in pH down an hour later.

So naturally I assumed the problem was in the res, and gave some thought to doing a flush. Thing is, I just did a full flush a few days ago... So on a whim I checked the fresh solution I was adding to the tank. It was pH 6.8.

What I don't understand is how it changed. It was sealed in a plastic bottle.

Normally, I keep the solution in the tent so it will be at about the same temperature as what is already in the tank. It's in a clear bottle and under the full brunt of 20 hours a day of the grow lights.

I am wondering if the light somehow contributed to this?

So I've thrown away the container I was using and now with a new bottle, I've mixed 2 litres of 5.6 pH. I'm going to check it in an hour to see if it's changed. Honestly it never occurred to me to check the already mixed and adjusted solution, so I wonder how long this has been going on... Any ideas?


What else is in it besides water?
 
I killed a 1st year apple that way a few years ago. I though it would be ok though because the lights were at 30 inches, plenty of air flow... but the top of seedling is looking mushy and bent over now. It damped off, the apple had fried leaves from full sun that day. So this may be a result of the gnats and not the spray, but it's sure curious timing. I still think it's the spray and light combo.
Well if she doesn't look good I guess that's the bottom line. Good to know
 
:bighug:
I'm getting deja vu again. @Padawan1972 !!! we've had this discussion like 3 times now! I just wish I had a better detector, the one my GF let me use is for shi7.

I have several...Fisher f75, Garrett 350, minelab 705. For the money the garret 250 or 300 do an outstanding job...pretty damn good detectors, even for a novice. Have been on several club hunts and the garrets were outshining the heavyhitting pro models! I use the garret the most!
 
I am wondering if the light somehow contributed to this?

Heat and Light affect PH readings...:headbang:...on my outdoor grow the same water can vary by as much as 1 full ph point if tested in the morning or tested in the afternoon..when it has had a chance to warm up a bit.
 
Arizer solo, my home vape of choice. You will like it I'm sure. I'm on my second one!!!
As long as it hits well, I'll love it.
I liked the idea of having the heat control like that, So I can basically just "dial in" the effect I want from my herb, Instead of packing a bowl or rolling a joint and getting everything at once.
 
Heat and Light affect PH readings...:headbang:...on my outdoor grow the same water can vary by as much as 1 full ph point if tested in the morning or tested in the afternoon..when it has had a chance to warm up a bit.
the pH probe I have is supposed to compensate for temperature... The light makes sense, though, since it's exposed to the lights, where the tank is black and quite dark.
 
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