Banach's father had never given his son much support, but now once he left school he quite openly told Banach that he was now on his own. Banach left Kraków and went to Lvov where he enrolled in the Faculty of Engineering at Lvov Technical University.
Banach ng ama ay hindi binibigyan ng kanyang anak na lalaki marami suporta, ngunit ngayon minsan siya kaliwa paaralan siya lubos na lantaran Sinabi Banach na siya ngayon sa kanyang sarili. Banach kaliwa Krakow at nagpunta sa Lvov kung saan siya sumali sa Faculty of Engineering sa Lvov Technical University.