Hey guys, I know I am posting in multiple places with this, but trying to keep the threads up to date for people to reference in the future…
I added the air intake with a 1 way check valve into the fridge so there won’t be any negative pressure.
To be honest, when I run the fridge and the pump, I do not feel any air entering, which makes me think the pump is not creating negative pressure… but better safe than sorry.
Full guide here: diy-water-chiller-with-a-mini-fridge-and-air-pump/