That is true, plus I have over 2 dozen of them!That'll be a big job Minne, some of the seacocks on the Beneteau built boats are tough to get to. I would bring rum and leave my sawza and sledge hammer at home. Good luck.
I find you just have to take the time to disassemble everything around to gain better access. Pulling out a salon seat is way more complicated that one might think, involving multiple interlocking parts. Otherwise, you spend twice as much time trying to troubleshoot the lousy access. I haven't done thru-hulls yet, but the same principal goes for tankage, pumps, etc, which are often buried deep.