Cruising Sailors Forum Archive

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• Poll -- scheduled replacement of thru-hulls?
  • I would say it depends where you sail. Salt water maybe add crowded marina.. (lots of electric use) maybex2
  • Just give it the 'whack' test.
    • That's actually a great test I know first hand.
    • Trouble with that is...
  • Replace them with Marelon...
    • PS.
    • Whoo. Had two Marelon fail, froze up and broke in the small part. Still leary....
    • Brian, I think you'll find these parts are typical
      • The fact they are common does not mean they are good!
        • Great Link Efram
          • Find it interesting that only Groco sells the flanged piece...
            • The thru-hull mushroom if bronze is still subject to electrolysis
              • Without a complete circuit... how is that possible?
                • I think that the "standard" is to ground all metal for thru-hull connections and protect it with your main zinc(s).
                  • None of mine are grounded
                    • I think it is an issue worth exploring...
                      • I agree. Here's an article of interest
                        • Reading the link...
                          • Me too. Will go with Marelon
                          • My Marelon thru-hulls are 24 years old and seem like new
        • Thru Hull Question Hydro lock?
          • Hi Tom...
            • Thanks Brian
              • Tom...
                • Agree but unless I take it into the quarter berth not possible.
          • We have a Vetus (I think) flap on our engine discharge
          • It all depends on how much more you are willing to do
          • You can also install a check valve in the exhaust just before the exhaust port
          • I'm calling out Art on that one! Marelon is NPT
            • Marelon is NPS...
              • you both may be correct
            • I learned two things today (and Art was right)
      • The flange is there for...
        • "handle breaking off" depends on whether it's open or closed and where you are.
    • Maralon (not just plastic) are fine in the right applications
      • The lesson of all this is maintenance, maintenance....which we, uh, forget.
        • What exactly is the proper maintenance?
          • heh. See Tom's post below. I have failed due diligence in the past.
        • Some of my seacocks are 50 years old, I see no reason to replace them.
          • As I read Tom's post above... two questions still remain...
            • I posted before I read yours Gene.
              • Here's a link to an article. No shortage of thoughts out there..
                • Yup, due for hauling this year...
            • Gene, It's not hard if you don't
  • I would replace them with proper seacocks
  • OK I'm going to replace these thru-hulls, so next question
    • Larry, how long have these been working for you?
      • 10 years. That's kind of where I'm leaning right now...
        • I don't like Marelon but it has worked for some. My sense after years of....
        • My suggestion...
      • Reminds me of the "Hong Kong Dong" jokes
    • Two inch buildup means...
    • I used delrin pads
      • About the capped "T"?
      • Nice setup. Wow.
      • Might want to watch
        • The chandlery that put the R in maine also carries them....
          • Good to know Nat....
    • I would use G10...
  • Follow-up to thru-hulls replacement