I just upgraded my filter press hand pump. It came with white silicone diaphragm. The new buna-n (black) diaphragm i got to replace it is suppose to be stronger and last longer. When a got it I noticed it really smelled like rubber, kind of like a cheap snorkel mouth piece. I wound up boiling it for a minute and was shocked at the smell. Being curious I tasted the water and almost threw it up in the sink. Although it made a fine buna tea I am contemplating using it. As a comparison i did boil my old silicone and what a difference, very little smell or taste. I had the same problem with cheap clear braid hose from HD,switching to silicone solved it. Called Bosworth and they never heard of it. Any thoughts, I know it’s food grade but I would not drink that tea.