A small update about the specifications of SnP (Salt & Pepper tank):
It uses 10 O-rings and there is a reason for that, especially when it is combined with RBA like Killer, Diver etc.
The top and bottom caps have double O-rings inside and outside plus the 2 holes. The whole thing is invisible because of the covers. This tank is made to be used continuously, it is intended for heavy use. It has been tested with the Diver which drinks well for his size and vapes like a monster without any gurgling. The SnP system prevents the pressure changes during refilling and you need a robust construction to support a continuous refilling action free of any leaks.
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