Hi all, new here. I'm trying to attach an aerator to my pool to cool it down. My problem is I can't figure out how to unscrew my jet fittings - they're flush with the wall with 2 little plastic notches sticking out. I'm afraid a screwdriver will break the notch off, is there a tool for this? Any advice is appreciated, thank you in advance! Pics below:
Jet 1:
Jet 2:
Jet 1:
Jet 2: