english: 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.
non_english: U ovom trenutku, ako želite da proverite vodu na terenu, treba vam obučeni tehničar, skupa oprema kao ova i potrebno je da se čeka oko jednog dana da se odigraju hemijske reakcije i time obezbede rezultate.