[Resolved] Cloudy water in Flexi Tank Pro To Parent Forum December 21, 2019 at 4:13 pm #268 johskaParticipant Hello, I recently bought a 225l Flexi Tank Pro and filled it three days ago with plain water. After checking it the first day everything was fine but now after three days the water looks a little cloudy. It also smells pretty chemical (rubber/silicone) but that’s ok I guess. But why does it turn cloudy/milky? Is it just the grease or silicone or something like that left from the production? And would you recommend to clean the tank before using it? The tank itself is very well made and I’m very happy with it. 🙂 Thanks, John December 21, 2019 at 4:14 pm #275 JoshKeymaster Hi John, I would give the inside a clean with warm soapy water and rinse off, this should resolve the problem. You must be logged in to reply to this topic.