Cruisers Forum
 


Join CruisersForum Today

Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on Cruisers Forums. Advertise Here
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 03-03-2020, 13:17   #1
Registered User

Join Date: Feb 2019
Location: Seattle = Home Base
Boat: Hanse 505 50'
Posts: 106
rethink janky thru-hull - advice?

TLDR:
Does anyone know where to find a NPS bronze street elbow? The stores all seem to sell NPT only.

Long version:
I'm preparing a new-to-me Hanse 505 for delivery from Hawaii to Seattle. Both heads were experiencing frequent clogs, and I traced the problem to badly corroded metal plumbing and ball valve. The skin fitting appears to be plastic similar to a forespar product. I think the plumbing must not have been bronze, and big flakes of metal were occluding the pipe, and catching waste as it flowed through. When I removed the "bronze" elbow, I broke off the threads with my hands. When I get back to Seattle, and haul out, I intend to replace all the thru-hulls with TruDesign or bronze. In the mean time, I just want to get the boat safe for delivery back to Seattle.

I successfully replaced the plumbing in the forward head with a forespar marelon ball valve (which is the only NPS ball valve I know of) and bronze elbow, using the existing skin fitting, which seems in good shape.

My problem is now how to handle the aft head. I can't leave it, now that I know how rotten that metal likely is. So I have to replace the elbow and valve. But I don't like the current arrangement at all (see attached picture), with an elbow attached to the skin fitting before the valve. I think the valve should be last thing before the skin fitting. I suspect that this isn't how it came from the factory, the ball valve is different to the rest on the boat.

The problem is that I don't think a normal ball-valve would clear the cabinetry if I thread it straight onto the skin fitting, so I may be forced to have the elbow first. But the skin-fitting is likely NPS, and all elbows I've found are NPT.

OK, so then I'm forced to replicate the existing configuration. So I'm looking at:
skin fitting (NPS) --> 90 street elbow (NPS) --> Ball Valve (marelon NPS) --> Bronze Tail piece (NPS).

But at least at west marine, I'm not seeing any NPS elbows or NPS tail pieces.

Does anyone have any suggestions for how to put together a sensible arrangement? I'd prefer not to spend big money doing this since I'm going to be replacing it all when I haul out in Seattle.


Thanks in advance!
Attached Thumbnails
Click image for larger version

Name:	E3CC7208-124D-4258-A4F1-8EBBA93F5962_1_105_c.jpeg
Views:	15
Size:	162.9 KB
ID:	209951  
ohthetrees is offline   Reply With Quote
Reply

Tags
hull

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
More late model cats coming out of charter? Time to rethink RKsailsolo Multihull Sailboats 23 14-03-2015 05:08
Crew Wanted: Rethink of route Caribbean Victoria via Panama AND HAWAII roland stockham Crew Archives 3 29-01-2014 15:22
Exhaust: Thru Hull? Not Thru Hull? steel Powered Boats 12 18-10-2012 21:14
Replace depth transducer cored hull - r&r thru with in hull? rpeebles Marine Electronics 5 11-04-2012 11:58
Garmin 'In-Hull' vs 'Thru-Hull' Transducers La Bras D'or Navigation 24 23-09-2009 07:26

Advertise Here


All times are GMT -7. The time now is 18:07.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2020, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.