I'm overhauling a Mistral and it turns out the volcano orifice is pretty severely nicked. The HP seat looks brand new so I'm sure it's the orifice causing the leak (The guy who sold it to me off the back of the truck told me it worked fine.
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I used steel wool, pencil eraser, etc... but no joy. Is it worth trying to grind / resurface the volcano orifice with a dremel or will it widen the orifice too much so the HP seat will not seal properly?
Your collective sage advice is welcome.
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"The diver who collects specimens of underwater life has fun and becomes a keen underwater observer. .. seek slow-moving or attached organisms such as corals, starfish, or shelled creatures." (Golden Guide to Scuba Diving, 1968)
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