@JamesG161 I have one of those for years, used it once and it doesn’t work well. Better in concept than in practice. (Also not size appropriate for this thread).
Doesn’t appear to be new thru Hull fitting in photo. If you are trying to remove an old fitting to replace with a new one, grind off the mushroom portion of the fitting on the outside of the Hull and push the remaining piece thru the inside of the Hull. Don’t attempt to grind the entire mushroom, just the area immediately adjacent to the inside diameter of fitting. Once you have cut thru, the remaining mushroom ring can be removed from the outside Hull surface with a flat blade scraper or large screwdriver, tapping gently with a hammer. Takes five minutes with no damage to gelcoat. If you are not replacing it, you might try heating from inside to soften sealant and twisting/unscrewing from outside. The boat yard may have a deep socket that they will loan or rent to you; however, it will have to have a thin wall to engage the nut in that recessed area. Also going to need assorted extensions & angle adaptors to get a ratchet or breaker bar to unscrew it. Good luck, let us know outcome.Ideas? I keep thinking there must a sleeve like socket that would mate with it to tighten and loosen, but searches are empty.
the new angle adapter just arrived.Unrelated to your immediate problem, but are you reusing the angled adaptor that attaches thru Hull fitting to valve or you replacing with a new one?
Its only Groco if its a new boat.....
unless I bought the part and installed it.Its only Groco if its a new boat.....
those would be perfect. so far, I can't find anything in the right size. I would think that groco would have them.Plumbers Faucet/Drain socket? They are relatively tall and thin walled, if you can find a set with big enough sizesView attachment 199542