Cruisers Forum

Join CruisersForum Today

Thread Tools Rate Thread Display Modes
Old 05-01-2009, 16:02   #16
Registered User
thinwater's Avatar

Join Date: Nov 2008
Location: Deale, MD
Boat: PDQ Altair, 32/34, "Shoal Survivor"
Posts: 3,442
I would be very careful with the cleaning chemicals....

The other thing that aluminum tanks are famous for is having through-pits right under the thickest deposit. Proceed with extreme caution. The difficulty is that aluminum is amphoteric - it dissolves in acid or base and the cleaning chemicals will eat the tank almost as quickly as they eat the deposits.

Also, unlike calcium deposits, which are a nuisance but generally harmless, your tank is slowly going away. Chlorine in the water is probably a part of the problem, but I would suggest asking a water treatment company (Culigan?) for their thoughts, since it is a local problem and they have seen it before. It probably is not required to test the water; any major city tests regularly and the results can be found on the web. Perhaps you need to consider treating the water BEFORE it goes in the tank, which may not be too onerous if you spend a lot of time tied up one place. Mixed bed DI might do.

Good observation, John.

API Licensed tank inspector.

thinwater is offline   Reply With Quote

fresh water tank, water pump, Water tank

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
Raw-water to fresh-water cooling conversion Catamount Engines and Propulsion Systems 31 06-05-2012 07:29
Fresh water tank treatment irwinsailor Construction, Maintenance & Refit 10 23-03-2011 11:19
Blue Water or Fresh Water? John-in-Hamilton General Sailing Forum 13 26-08-2009 01:11
Find and repair leak in fresh water tank jenifox Construction, Maintenance & Refit 2 03-02-2008 14:58
Fresh water tank leak lannen Construction, Maintenance & Refit 4 09-10-2003 17:55

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2015 Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 02:25.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.