dinnerstick
Well-Known Member
I'm pumping water through a radiator for heating and cooling of my fermenter, and the water comes out black. after one full fermentation run the hoses (beer line) are opaque black/rust red. does anyone know what would be good to run through this system to stop the rust? there is no chance of contact with the fermenting beer so it can be as poisonous as you like. the liquid goes through a small heat exchanger, radiator, and tupperware reservoir. does car antifreeze have anti-rust properties?? any suggestions welcome, thanks