New seacocks/thru-hulls

Gjspwr: "Does anyone know what the 2007 Hanse 400 had? Also, any way to test the things, preferably without banging on them? "

You do not need to test anything. Look at the photos above. My 7 years old thru-hulls were developing red rings where detoriation had started, but they still had plenty of metal.

Then look at the photo from HPNielsen DK, where 75% of the metal have vanished, and remember, that the thru-hull disintegrated when he was removing it. His boat is from 2006.

As I have written in the warning to ALL Hanse owners: If you are sailing in a boat with the original thru-hulls from 2005-2012, CHANGE THEM NOW. And take another look at the photo above. Do not bang on those things, unless you like the idea of a fountain in your boat.

Do read the posts on pages 1-3 as well.

In another post I mentioned that a set of Trudesign for my boat was $430.

Imagine that your boat sinks because one of the old thru-hulls disintegrate. Further imagine that a person is drowning. And imagine, that the relatives of the deceased are suing you for negligence.

What would that amount to in the US?  ----- A little more than $430 I suspect?

Do yourself and your family a great favor, and change them soonest! 

:Kjeld

A wise man and a specialist is not necessarily the same person. A 90 degree direction change  in a liquid flow is not recommended, but to redirect the brown goo through the hull, it is the most convenient solution. In my H400 I had the brass fitting for 7 years, and thereafter the Trudesign for another 7 years, and I have not had any problem with the 90 degree fittings. The Trudesign ball valve has been criticized in myhanse for having a small bypass opening, but I experience no difference.

In our boats the (mostly) liquid waste is leaving a higher position (potential energy), and thereby will try to get a velocity of 9,82 m/sec2 in the first second of downward motion. The fast flow will work against any clogging in the bend. The claim of the specialist may be true for very big ships with slow moving waste, though.

If you are worried, try the search function here, but I do not remember any posts from members complaining of the 90 deg. angle.

Maybe if you are throwing toilet paper and sanitary napkins in the toilet there is a problem, but I assume that you have owned your boat since 2013, so you may tell me, if you ever had a clogging in the 90 degrees bend?

:Kjeld

You might need a 1" thread cutter to clean the threads before putting the new stuff in.

/Börje