The marine howto guide is great. There is a lot of unresolved debate about whether you should use graphite impregnated packing material due to the possibility of galvanic corrosion. Marine Howto and the ABYC recommend against it -- but many people seem to like it. I think the graphite stuff lasts longer, so you do not have to repack as often, but somewhat increases your chances of crevice corrosion on the shaft. However, it clearly does not increase the chances enough that shafts are failing at a high rate. After replacing my stuffing box in the water, I decided I was ok with repacking the stuffing box more often. I splurged on a set of these,I would also recommend a good tool for scraping the old packing material out, though I do not have any specific recommendations. I bought a fancy corkscrew-like tool designed for the job, but it was too big, so I returned it and just used a small screwdriver. But the small screwdriver was less than satisfactory. The first time I changed my stuffing box (or any stuffing box at all), my T27 was in the water. I was terrified that the water was going to come gushing out when I removed the packing nut. But it was, in fact, very underwhelming. - jeremy On Thu, Nov 12, 2020 at 3:40 PM <patrick.mcgough@...> wrote:
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