hey everyone, I have been noticing Vazilla flavor in my BCC mega tank has been tasting a little off but only started since I put it in my tank. it has tasted fine to me in every other tank except this one, I also did just notice that the inside stem where the coil slides into is plastic but when looking around at other BCC Mega tanks the stem is stainless. is it possible that I got an knockoff or fake BCC Mega tank? what is everyone elses opinions?