The burst valve design of the Specialized WaterGate lids for their bottles are quite nice, and as one can twist the valve gently to remove it for cleaning they don’t suffer the buildup that plagues CamelBak bottles. However, after a few cycles of removing the valve and washing them the o-rings become dry and the valve is hard to reinsert and doesn’t move very slowly.
I have some Petrol-Gel lubricant for maintaining beer dispensing equipment, so I figured I’d give it a go on these seals. It worked great; a very light application to the o-rings and the inside of the valve seat in the lid restores the original smooth action of the valve. This makes the lid work like new.