Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 15-06-2011, 08:10   #46
Registered User

Join Date: Dec 2010
Boat: Catalina 30
Posts: 211
Re: Fixing Plastic Freshwater Tank

Quote:
Originally Posted by MarkJ View Post
Updated news.

I have done the repair. But don't know till I fill the tank if the repair is effective (or for how long)

I used the technique in post #6 from Allanpeda in the video posted. It uses heat treating the polyethelene.

Also I blobbed on a few test dollops. They have stuck pretty well but they can be sctratched off. Maybe a few more days hardening, maybe it will be fine in the larger repair.

Mark
Not good. Well you tried. Perhaps it would be better if the adhesive were inside the tank, so the hydrostatic pressure is pushing it into the crack, but then you wouldn't be able to get that torch in to prep the surface.

Maybe this will buy enough time to save up for a new tank.
__________________

__________________
allanpeda is offline   Reply With Quote
Old 15-06-2011, 09:03   #47
cat herder, extreme blacksheep
 
zeehag's Avatar

Cruisers Forum Supporter

Join Date: Jul 2008
Location: furycame alley , tropics, mexico for now
Boat: 1976 FORMOSA yankee clipper 41
Posts: 17,770
Images: 56
Send a message via Yahoo to zeehag Send a message via Skype™ to zeehag
Re: Fixing Plastic Freshwater Tank

Quote:
Originally Posted by MarkJ View Post
Of course it does. Thats where you sit.




yes, you're on for the beer

lol--that is the big hle in topsides middle-- thelil hole in bottom is where the water came in for a bit--i used a champagne cork, bed sheet material(hay--cloth is cloth..LOL) and epoxy-- so far, so good-- but i wanna do a better job..>LOL....
__________________

zeehag is online now   Reply With Quote
Old 15-06-2011, 09:35   #48
Registered User

Join Date: May 2010
Location: Seattle
Boat: 535 Norseman
Posts: 36
Re: Fixing Plastic Freshwater Tank

I used to work for a company that sold polyethlene tanks that came blank. We would cut a hole and the would use a little handheld machine that we would put the fitting in - I believe it was a Makita -and it would spin in a fitting (or a patch) at high speed and melt the two pieces together.

Depending on where you are I would check with marine sanitation companies, or tank companies and see if they have something like that. It would take about 10 minutes (once you got the tank to the shop). Other than that it's really hard to stick stuff to that material.
__________________
memiller279 is offline   Reply With Quote
Old 15-06-2011, 11:09   #49
Registered User
 
capn_billl's Avatar

Join Date: Aug 2010
Location: Houston,Tx
Boat: Maxum 37'
Posts: 1,587
Re: Fixing Plastic Freshwater Tank

Using a controlled heat source and melting a filler material into the gap is the only long term solution for Polyethylene. You can try it yourself or contact someone with plastic welding equipment, (like me).
__________________

__________________
capn_billl is offline   Reply With Quote
Reply

Thread Tools
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
Fixing Stainless Water Tank seashine Plumbing Systems and Fixtures 22 26-03-2013 06:33
Fixing a Fuel Tank Leak Ziggy Engines and Propulsion Systems 6 05-01-2011 21:21
Trinidad - Plastic Tank Fabricator ? Sonosailor Plumbing Systems and Fixtures 2 02-08-2010 05:36
looking for (custom?) plastic tank for our diesel lancs Construction, Maintenance & Refit 8 18-03-2009 15:45



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 08:36.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.