how often do i...

How often should i check the ph leval a day?and do i change the water/nutrients every week like fresh never use the same water??

u dont really need to check ur ph any more than once a day, some people dont even bother(i do). watering and nutrient feeding depends on too many factors to answer easily. what size of pots, age/size of plant, how much light u have( this drys out soil), have u fans blowing on them( drys out soil), what exactly are u growing in( if u have peat or vermiculite or a dense soil then they can retain quite a bit of water). give us some details buddy and at the end of the day remember that each plant is totally unique, meaning that u could haver 5 plant all the same in same pots/soil in exact same conditions and they all grow at different rates. some pics and details if u can. all water from the tap should be left in watering can/bucket for at least 24 hours 48 if poss. this allows the chlorine gas in it to escape and any parasites to die along with bringing it up to room temperature.

I usually check my PH a time or two early in veg, and then I don't worry about it again unless I start seeing a problem. Typically if you're using the exact same nutes and water every time, the PH shouldn't be bouncing around anyway. As for the water/nutes: I don't reuse it, I make up what I need for each watering/feeding, and toss any remaining. You'll learn quick enough what your plants need, and shouldn't have a whole lot left over per each feeding anyway. Of course I'm talking soil, so if you're doing hydro it's a different story.

I check pH once a day and try to do it at the same time each day. Don't try to force it to a specific level like 5.8. Let is swing naturally. Mine is usually at 6.5 and my plants have been healthy as can be. I change the res weekly, drain and fill with new water. I add nutes according to feeding schedule for that week. During the week I add water to keep the level steady, but do not add more nutes.

how bout if im doing bubbleponics???