Reply
 
Thread Tools Display Modes
 
Old 07-13-2013, 06:54 PM   #1
Senior Member
 
IslandEagle's Avatar
 
City: Toronto & Nanaimo
Country: Canada
Vessel Name: Island Eagle
Vessel Model: DeFever
Join Date: Dec 2012
Posts: 232
Steel tanks over winter

OK, here's a question for the collected wisdom of TF:

When leaving two 500 gallon mild steel water tanks unused for 11 months, is it best to leave them empty or full? I've done both and not noticed any particular difference.

In any event they will be flushed before the next use.

Scott Welch
Island Eagle
__________________
Advertisement

IslandEagle is offline   Reply With Quote
Old 07-14-2013, 06:22 AM   #2
FF
Guru
 
FF's Avatar
 
Join Date: Oct 2007
Posts: 16,530
Flushing will perhaps clean the fuel in the tank , but not clean the tank one bit.

I would go with full, with a good dose of a different brand of bug killer than you usually use.

AND an attempt (hopefully a bottom drain) to get all the water out before storing.
__________________

FF is offline   Reply With Quote
Old 07-14-2013, 06:59 AM   #3
Guru
 
psneeld's Avatar
 
City: Avalon, NJ
Country: USA
Vessel Name: Freedom
Vessel Model: Albin 40
Join Date: Oct 2011
Posts: 15,913
Quote:
Originally Posted by IslandEagle View Post
OK, here's a question for the collected wisdom of TF:

When leaving two 500 gallon mild steel water tanks unused for 11 months, is it best to leave them empty or full? I've done both and not noticed any particular difference.

In any event they will be flushed before the next use.

Scott Welch
Island Eagle
RickB suggested a few days back that empty and fog them would be best. I would agree..but ...hard t argues after so many have done for so long is full/stabilized if the fuels is consumed within a relatively sort time after coming out of storage. 11 months is as long as I would like fuel to sit without use and not being polished.

I would never do it with ethanol fuel for those reading and have gassers.
psneeld is offline   Reply With Quote
Old 07-14-2013, 07:18 AM   #4
Scraping Paint
 
City: Fort Lauderdale
Vessel Model: CHB 48 Zodiac YL 4.2
Join Date: Oct 2007
Posts: 3,804
Quote:
... mild steel water tanks unused for 11 months ...
If you can dry them completely and keep them bone dry then do that. Otherwise, filling them completely with cold, clean, fresh water will provide a low oxygen environment.

If they haven't decomposed in the past 11 months of normal use with a constantly refreshed supply of oxygenated water sloshing around, they won't fall apart by being protected by a shield of clean water.
RickB is offline   Reply With Quote
Old 07-14-2013, 12:15 PM   #5
Senior Member
 
IslandEagle's Avatar
 
City: Toronto & Nanaimo
Country: Canada
Vessel Name: Island Eagle
Vessel Model: DeFever
Join Date: Dec 2012
Posts: 232
Quote:
Originally Posted by RickB View Post
If you can dry them completely and keep them bone dry then do that. Otherwise, filling them completely with cold, clean, fresh water will provide a low oxygen environment.
That was my thought as well.

Quote:
If they haven't decomposed in the past 11 months of normal use with a constantly refreshed supply of oxygenated water sloshing around, they won't fall apart by being protected by a shield of clean water.
Well, I've had the boat for 10 years and only use it in the summer, and the tanks are 50 years old, so I'm not so worried about them falling apart :-)

It's more a question of which option will lead to less-metalic-tasting water next summer.

Scott Welch
Island Eagle
IslandEagle is offline   Reply With Quote
Old 07-14-2013, 12:17 PM   #6
Senior Member
 
IslandEagle's Avatar
 
City: Toronto & Nanaimo
Country: Canada
Vessel Name: Island Eagle
Vessel Model: DeFever
Join Date: Dec 2012
Posts: 232
Quote:
Originally Posted by FF View Post
Flushing will perhaps clean the fuel in the tank , but not clean the tank one bit.

I would go with full, with a good dose of a different brand of bug killer than you usually use.

AND an attempt (hopefully a bottom drain) to get all the water out before storing.
The tanks in question are water tanks, not fuel. My fuel tanks (dual 1000 gallon) are also mild steel, with a nice big bottom drain and a 250 GPH pump with dual Racors for cleaning the fuel in the spring. Never a problem, full or empty.

Scott Welch
Island Eagle
IslandEagle is offline   Reply With Quote
Old 07-14-2013, 12:21 PM   #7
Senior Member
 
IslandEagle's Avatar
 
City: Toronto & Nanaimo
Country: Canada
Vessel Name: Island Eagle
Vessel Model: DeFever
Join Date: Dec 2012
Posts: 232
Quote:
Originally Posted by psneeld View Post
11 months is as long as I would like fuel to sit without use and not being polished.
I have used very old (>10 years) diesel with no ill effects, although not in my boat. However, this was in old-school mechanical engines, so YMMV.

In the case of Island Eagle, I last filled the tanks in 2008 and the old Detroit 6-110 has never missed a beat. I did have a bit of gunk in the Racors this year, though. I'd guess that the climate where I store the boat (Pacific Northwest) helps.

Scott Welch
Island Eagle
IslandEagle is offline   Reply With Quote
Old 07-14-2013, 12:52 PM   #8
Scraping Paint
 
City: Fort Lauderdale
Vessel Model: CHB 48 Zodiac YL 4.2
Join Date: Oct 2007
Posts: 3,804
Quote:
Originally Posted by IslandEagle View Post
apart :-)
It's more a question of which option will lead to less-metalic-tasting water next summer.
There is always the old fashioned "cement wash" technique. It has been modernized a bit but is still a good way to achieve corrosion protection and removing metallic tastes.

Applications For MarineCoat : Astek Composites Inc.

I haven't had any problems with taste from steel tanks but maybe it depends on the water source. If your water supply is acidic you might want to add a bit of caustic soda but don't let the pH go above 11.
__________________

RickB is offline   Reply With Quote
Reply

Thread Tools
Display Modes

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





All times are GMT -5. The time now is 12:14 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012