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Turned the extractor fan off and it's pushing 19 19.3, the intake fan is still on, is this worth it, or will I need that extractor fan on to make sure there's a constant in out cycle?
 
Turned the extractor fan off and it's pushing 19 19.3, the intake fan is still on, is this worth it, or will I need that extractor fan on to make sure there's a constant in out cycle?
If you feel air being pushed out of the exhaust hole. I would think your good.
 
I use cheap meters and I'd say they hold calibration for a while. If you're growing hydro, you absolutely need meters. If you can afford high end ones, it's probably wise to get them, otherwise get what ya can afford. They all do about the same things more or less.
 
Quick question about good P.H probe style testers. Are they worth the money and if so what brand? Thanks
Sorry I use a 6 in 1 test kit. I would think that as long as it can be calibrated. It should work just fine.
 
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