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New seacocks/thru-hulls |
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BamBam 
Sub Lieutenant 
Joined: 05 October 2022 Location: Europe Status: Offline Points: 5 |
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 Posted: 12 February 2025 at 10:54 |
Thank you very much for your fast response. Did you use the load bearing collars ?  Edited by BamBam - 12 February 2025 at 11:02 |
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Stormsvalen
Lieutenant 
Joined: 11 April 2020 Location: Fredericia, DEN Status: Offline Points: 44 |
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Posted: 12 February 2025 at 14:12 |
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No - just replaced the old brass ones on to one - 6-7 years ago and they work like new
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'Stormsvalen' Hanse 400e DEN 167
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landlocked
Rear Admiral 
Joined: 12 April 2005 Location: Canada Status: Offline Points: 568 |
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Posted: 12 February 2025 at 17:11 |
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I also have the TrueDesign parts in my 400e (6 places: forward head, aft head and galley sink). I didn't include the load bearing collars and I don't feel these are necessary because the locations are all in tight protected spaces where it is unlikely the fittings would ever be subjected to a heavy load.
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"Kerkyra" 400e #042
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BamBam
Sub Lieutenant
Joined: 05 October 2022 Location: Europe Status: Offline Points: 5 |
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Posted: 12 February 2025 at 17:22 |
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Thank you guys, you just made my day.
I will update, when everything is in place.
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Rock
Commadore 
Joined: 19 September 2014 Location: Netherlands Status: Offline Points: 404 |
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Posted: 12 February 2025 at 21:42 |
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Same here, replaced old with Trudesign 1 on 1 on my 400e.
No issues. Regards, peter
Edited by Rock - 12 February 2025 at 21:43 |
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Hanse 400e "M-square2" #0241
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echoofwight
Captain 
Joined: 08 August 2007 Location: Portsmouth UK Status: Offline Points: 270 |
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Posted: 13 February 2025 at 09:23 |
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Also changed the seacocks and fittings on my 342 with trudesign, no problems although they take up a bit more space than the old ones.
Edited by echoofwight - 13 February 2025 at 09:23 |
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Steve. Hanse 341 Echo of Wight, . Deep draft and rudder, white hull, Single aft cabin. Raymarine instruments. Raymarine radar. Garmin AIS. Wheel Steering, Portsmouth.
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Yeoey
Captain
Joined: 22 August 2016 Location: Australia Status: Offline Points: 162 |
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Posted: 13 February 2025 at 10:03 |
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Hi BB,
I don’t really see your concerns, but in lieu of seeking replies of a commentary nature here, may I suggest you contact the manufacturers direct for a better clarification and ease your concerns. The valves are not designed for a specific hull thickness with the internal collar tightened via a thread, and you can also add an an additional internal collar for further stem strength. Peter
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Peter
Sea Rambler 415 # 137 |
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DJgun
Captain
Joined: 04 April 2020 Location: SydneyAustralia Status: Offline Points: 287 |
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Posted: 30 March 2025 at 02:32 |
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When Hanse originally install these fittings they put the 90⁰ elbow onto the through hull fitting then fit the seacck to that.
According to shipwrights here in Australia and elsewhere, the seacock must be fitted directly to the through-hull fitting, and the elbow fitted upstream from the seacock. For sure this takes up more space in the cupboard, but it still fits OK with Truedesign. Maybe rules are different in different countries, but this one makes sense to me.
Edited by DJgun - 30 April 2025 at 23:32 |
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DJ.....Sailor Ordinaire
HIN DE-HANJ0331J708 |
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BamBam
Sub Lieutenant
Joined: 05 October 2022 Location: Europe Status: Offline Points: 5 |
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Posted: 25 October 2025 at 19:20 |
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Just wanted to keep you informed.
There was some kind of delay in our plans to change the seacocks this spring, but we finally managed to complete our to-do-list. Thanks for the support.
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Raimondo
Lieutenant Commander 
Joined: 23 September 2020 Location: Italy Status: Offline Points: 61 |
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Posted: 16 November 2025 at 14:12 |
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Dear all, I'm in the processing of replacing the seacocks of my Hanse 400e of 2009 with Trudesign, and I double checked the list of necessary parts that are available on this thread (Thanks for posting!). I find out that the black wast valve of the stearn head is 1 e 1/4" and not 1 e 1/2" as the valve of the bow head.  Is this because I have the TMC kit that transformed the manual in electric WC? I bought the boat second-hand and I find with the electric WC. I see that TMC uses smaller dimension for the pipes. Thanks in advance for your insight, Raimondo
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400e #499 2009 "Cricca 4" ITA16254
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Stormsvalen wrote: