Reply
 
Thread Tools Search this Thread Display Modes
 
Old 06-16-2012, 05:39 PM   #1
Rivet Master
 
Zeppelinium's Avatar

 
1975 31' Sovereign
1973 27' Overlander
1977 23' Safari
Palmer Lake , Colorado
Join Date: Oct 2005
Posts: 3,908
Send a message via Skype™ to Zeppelinium
Tank gunk -- help

Anyone know what this black stuff is and how to get rid of it? It's only on the top and sides (inside the tank).

Click image for larger version

Name:	DSCN0042 tank gunk-s.jpg
Views:	95
Size:	98.5 KB
ID:	161167

I'm going to modify the tank with two 3/4" drains in the bottom. I can get the Metal Company in Denver to spin in the flush fittings.

BTW, when I was checking the tank for leaks I noticed that the vents are about 1" down from the top in the 5" tank. That means that if you fill the tank with the trailer level, you only get about 80% capacity. Depending on which side your kitchen is on (generally the tank fittings are on that side), you need to have that side of the trailer high, maybe 5 degrees, in order to fill the fresh tank to something like 95% capacity.

Zep
__________________

Zeppelinium is offline   Reply With Quote
Old 06-16-2012, 06:06 PM   #2
Moderator
Commercial Member
 
eubank's Avatar
 
1967 30' Sovereign
Bosque Farms , New Mexico
Join Date: Jan 2004
Posts: 6,428
In an old geology class, we were taught to do a couple of tests after the initial visual: Sniff and taste. (Naturally, the teacher then explained that what we'd all sniffed and tasted was petrified dinosaur poo. I'm assuming that what you've got is something different.)

Lynn
__________________

__________________
WBCCI 21043
eubank is offline   Reply With Quote
Old 06-16-2012, 06:10 PM   #3
Rivet Master
 
SteveH's Avatar
 
2005 39' Land Yacht 390 XL 396
Common Sense , Texas
Join Date: Sep 2007
Posts: 5,311
If I had to guess, I'd guess mold, and I know that's not what you wanted to hear. Clorox should kill it.
__________________
SteveH is offline   Reply With Quote
Old 06-16-2012, 06:42 PM   #4
Rivet Master
 
Zeppelinium's Avatar

 
1975 31' Sovereign
1973 27' Overlander
1977 23' Safari
Palmer Lake , Colorado
Join Date: Oct 2005
Posts: 3,908
Send a message via Skype™ to Zeppelinium
Quote:
Originally Posted by SteveH View Post
If I had to guess, I'd guess mold, and I know that's not what you wanted to hear. Clorox should kill it.
I'm only concerned about making the tank plastic brittle, I want to be careful about strong agents in the tank. If the Clorox is safe in this regard, I'm sure willing to use it--the smell will be gone pretty quick.

I'm willing to bet that most people have this stuff in their tank, but since they never look, they don't know it and it doesn't hurt them.

Zep
Zeppelinium is offline   Reply With Quote
Old 06-16-2012, 07:00 PM   #5
Rivet Master
 
TBRich's Avatar

 
2006 19' Safari SE
Tucson , Arizona
Join Date: Jun 2007
Posts: 4,483
Images: 64
I don't think you'll harm the tank if you don't leave it in full strength for too long. I'd position the tank so that the bleach hits the stuff directly and let it stand for a while, then fiinish filling the tank with fresh water so that the bleach gets diluted...and let that sit for a day at least. You'll need to rinse it several times to get rid of the bleach and taste, but that should kill whatever it is, and hopefully clean it...

For what it's worth ... I can see the top & sides of our fresh water tank (it's under the dinette), and it looks clean. We never drain it completely. Granted, ours is a relatively new AS, and we're the only ones who have used it ... but to help avoid this type of problem, whenever I fill our fresh water tank from an unfamiliar water source (in campgrounds, etc) I add a bit of a weak bleach solution...not enough to taste, but enough to help purify the water. We use our fresh water for cooking and drinking. So far so good ... and no bad taste.
__________________
TB & Greg and Abbey Schnauzer
AirForums #21900 . Membership Chair, 4C
Unit #3954
Travel Log: AZBambi...On the Road Again
TBRich is offline   Reply With Quote
Old 06-16-2012, 07:06 PM   #6
Site Team
 
Aage's Avatar
 
1974 31' Sovereign
Ottawa , ON
Join Date: May 2008
Posts: 11,204
Images: 25
Zep,
If bleach worries you, how about putting the tank back in your TT and taking a long drive down a bumpy road with a ton of crushed ice in the tank?

I'm with Steve, BTW. What could it be besides mould, or just plain dried poo?
__________________
“Courage is being scared to death, but saddling up anyway.”
...John Wayne...........................
Aage is offline   Reply With Quote
Old 06-16-2012, 09:21 PM   #7
Rivet Master
 
Melody Ranch's Avatar
 
1956 22' Flying Cloud
1953 32' Liner
1955 22' Safari
Valley View , Texas
Join Date: Jan 2006
Posts: 3,960
Images: 78
Send a message via Skype™ to Melody Ranch
Zep....last year, maybe two, someone mentioned the use of a powdered type chemical used in swimming pool cleaning and sterilization.....look for it and I will search around too.
__________________
"If it can't be reduced, reused, repaired, rebuilt, refurbished, refinished, resold, recycled or composted
then it should be restricted, redesigned or removed from production."
Melody Ranch is offline   Reply With Quote
Old 06-16-2012, 10:06 PM   #8
Site Team
 
Aage's Avatar
 
1974 31' Sovereign
Ottawa , ON
Join Date: May 2008
Posts: 11,204
Images: 25
Of course, there's always the GEO Method.

He is convinced that bleach doesn't hurt the tank, but the main things he leans on are a soap product and water softener. It makes a lot of sense, and members who have tried it in this thread seem very pleased with the results...
__________________
“Courage is being scared to death, but saddling up anyway.”
...John Wayne...........................
Aage is offline   Reply With Quote
Old 06-16-2012, 10:19 PM   #9
Rivet Master<br><img src="/ugala/forums/images/5rivet.gif">
 
CanoeStream's Avatar

 
2006 25' Safari FB SE
St. Cloud , Minnesota
Join Date: Aug 2003
Posts: 13,279
Images: 19
Blog Entries: 3
Above-floor Argosy tanks receive plenty of light and can get that glorious aquarium green. I'd tend to do the following only with tanks removed (as yours are and my Argo tank was way back then). It took me a couple gallons of full strength bleach to finally get it cleaned out.

Bleach is a really strong scavenger of organic material (mold, algae, etc). 5.25% sodium hypochlorite as you buy it is stabilized. Add any amount of water and you have to use it within hours. Yes, the smell will be gone pretty quick. Not immediately -- but dilution + days + venting should take care of it.
__________________
Bob

5 meter Langford Nahanni

CanoeStream is offline   Reply With Quote
Old 06-16-2012, 11:07 PM   #10
Rivet Master
 
Wabbiteer's Avatar
 
1973 27' Overlander
1972 29' Ambassador
St. Paul , Minnesota
Join Date: Apr 2006
Posts: 1,912
Images: 2
Blog Entries: 2
Having uncovered a large wet bath-towel weight & size mat of algae in the Overlanders FW tank you have my condolences.

Even after letting the drain stay open for over a month that waiting surprise when I scooted back the tank locker floor AND 2/3rds of a tank of water that slammed half the tank down to the ground folding the plastic neatly at the molded partition scared me. The mat was evolving into consciousness and attempting to control its environment by plugging the drain line. Seeing the blob doubly decided that tank was history, and it fought back by promptly plugging the holes I drilled in the tank to drain it. The relief I felt tucking the tank into the "jaws of doom compactor" and being allowed to crush it by the trash truck hauler was worth whatever hassle waits in the future with FW tanks.

If'n I were you I would not hesitate to skip the sanitizers and move straight to muriatic acid (swimming pool acid) solution of hydrochloric acid. The plastics are immune but the sensor pickups might flinch at it so remove them if possible.

A very good sanitizer class is Bromines - hot tub sanitizers. This change from Chlorine based chemicals helps keep resistant organisms from blooming into city block sized mats scrunched into the plastic tank.
__________________

Wabbiteer is offline   Reply With Quote
Old 06-16-2012, 11:16 PM   #11
Rivet Master
 
Melody Ranch's Avatar
 
1956 22' Flying Cloud
1953 32' Liner
1955 22' Safari
Valley View , Texas
Join Date: Jan 2006
Posts: 3,960
Images: 78
Send a message via Skype™ to Melody Ranch
Canoestream got it.....Sodium hypochlorite - Wikipedia, the free encyclopedia
Thats what I was thinking of. Available inexpensively at pool supply houses.
__________________
"If it can't be reduced, reused, repaired, rebuilt, refurbished, refinished, resold, recycled or composted
then it should be restricted, redesigned or removed from production."
Melody Ranch is offline   Reply With Quote
Old 06-16-2012, 11:28 PM   #12
Rivet Master<br><img src="/ugala/forums/images/5rivet.gif">
 
CanoeStream's Avatar

 
2006 25' Safari FB SE
St. Cloud , Minnesota
Join Date: Aug 2003
Posts: 13,279
Images: 19
Blog Entries: 3
5.25% Sodium Hypochlorite in aqueous solution is commonly called bleach, Clorox, etc. Melody Ranch, is the pool stuff liquid?

Aha! From Wikipedia on the 'stabilized' point: "Household bleach and pool chlorinator solutions are typically stabilized by a significant concentration of lye (caustic soda, NaOH) as part of the manufacturing reaction. Skin contact will produce caustic irritation or burns due to defatting and saponification of skin oils and destruction of tissue. The slippery feel of bleach on skin is due to this process."

I do know that you can't dilute bleach and then store it. That defeats the stabilization. A bit off topic...
__________________
Bob

5 meter Langford Nahanni

CanoeStream is offline   Reply With Quote
Old 06-17-2012, 12:47 AM   #13
Rivet Master
 
webspinner's Avatar
 
1971 25' Tradewind
Menlo Park , California
Join Date: Jan 2010
Posts: 1,269
Images: 15
Quote:
Originally Posted by Aage View Post
I'm with Steve, BTW. What could it be besides mould, or just plain dried poo?
Hopefully it isn't poo since this is a fresh water tank.
__________________
Barbie
Our travel and renovation blog: http://tinpickle.blogspot.com/
webspinner is offline   Reply With Quote
Old 06-17-2012, 06:11 AM   #14
Rivet Master
 
Bruce B's Avatar

 
2012 16' International
Jamestown , Rhode Island
Join Date: Mar 2012
Posts: 1,387
Images: 1
I would use bleach to clean the tank. One trick to get rid of the bleach taste is to fill the tank with a vinegar water solution afterwords. Let it sit for a day and all bleach taste is gone. The plastic tanks on our boat look like yours every spring! First bleach and then the vinegar and everything looks and tastes new again. By the way, have you wondered what the inside of all the fresh water lines look like? I'd treat everything...
Bruce
__________________

__________________
Bruce B is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
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



Virginia Campgrounds

Reviews provided by




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 02:19 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.

Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.