Right now, if you want to test water in the field, you need a trained technician, expensive equipment like this, and you have to wait about a day for chemical reactions to take place and provide results.
U ovom trenutku, ako želite testirati vodu na terenu, trebate kvalificiranog tehničara, skupu opremu poput ove i morate čekati oko jedan dan da kemijske reakcije naprave svoje i daju rezultate.