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Re: Dripless Shaft Seal versus Stuffing Box
I've just bought a PSS dripless also. Not tested it yet but the rubber is quite thick and feels sturdy. I believe that with regular inspections and changing as eherlihy said it should be fine. I plan to reinforce the stainless steel ring that keeps the compression on with perhaps a spare anode to prevent any possible slip.
Despite that I must admit the fact that the sea would come rushing in with a failure and little could probably be done to stem it is somewhat disconcerting.