Level of ph

hi im realy new and sorta still in the proccess of buying ph systems and all that
i dont have a ph system and was wondering what level ph does a regular water bottle (room temp) give out right away..(since thats what im using) ^^
my parents buy a big case of water bottles and i just take a few keep it in my room and evry 3-4 days i water my baby with it...

It all depends on the kind of water as far as I know, but if you're thinking about watering plants with bottled water go for it.

As long as it's normal water.