soil or hydro?...if you are hydro then yes it is normal to have fluctuations from the run off depending on what nutes and addatives you are using...if you are soil and the bucket is your feed water that you just left out overnight and it swung that much then i would take a look at my testing equipment or procedure....i set my ph to 6.5 yesterday and today the same bucket of water phed 8 or plus .is this normal or does it have to do with my ph down formula
i am growing in soil and the bucket sits on the floorovernight and it rises i use flairform ph test kit i dont know wtf is going on i am going to get a couple diferent test kits and do some tests i guesssoil or hydro?...if you are hydro then yes it is normal to have fluctuations from the run off depending on what nutes and addatives you are using...if you are soil and the bucket is your feed water that you just left out overnight and it swung that much then i would take a look at my testing equipment or procedure....