It's a little desappointing because nothing indicate it's potable or not but it's on the map of "Infirmiers de rue" as potable and also not easy to drink on it. I  passed there this morning and it's working and i taste it ;-) Mapillary will follow. 

https://www.infirmiersderue.be/sites/default/files/uploads/Documents/Outils/Plan_IDR_fontaine2121_B2_web.pdf