ok every time i go into my grow room i check the ph and about every couple of hours it will go from 6.2 to 6.7 then 6.8 then somtimes back down again i just dont feel comfortable addin ph up and down every hour or so so what should i do i was told to keep the ph between 5.5 and 6.5 and i think if i keep and up and down it will kill the plants i use tap water but my tap water is a 7.0 so i tought it was ok to use if i put downer in it should i get bottled water from the store or is tap fine i am in hydro dwc systems
