RV.Net Open Roads Forum: Beginning RVing: Winterize black water tank

RV Blog

  |  

RV Sales

  |  

Campgrounds

  |  

RV Parks

  |  

RV Club

  |  

RV Buyers Guide

  |  

Roadside Assistance

  |  

Extended Service Plan

  |  

RV Travel Assistance

  |  

RV Credit Card

  |  

RV Loans

Open Roads Forum Already a member? Login here.   If not, Register Today!  |  Help

Newest  |  Active  |  Popular  |  RVing FAQ Forum Rules  |  Forum Help and Support  |  Contact

Search:   Advanced Search

Search only in Beginning RVing

Open Roads Forum  >  Beginning RVing

 > Winterize black water tank

This Topic Is Closed  |  Print Topic  |  Post New Topic  | 
Page of 2  
Next
Sponsored By:
N1VWD

Vermont

New Member

Joined: 09/10/2010

View Profile



Good Sam RV Club Member

Offline
Posted: 09/14/11 06:54am Link  |  Print  |  Notify Moderator

Hello to all in the group.
I live in VT and I am in the process of winterizing my TT for the year. I have read that after draining the black water tank you should always add 3 to 5 gallons of water to the tank to keep any remaining solids from drying out and keep every thing in solution. Do you still do this at the end of the season? What about freezing, wont it damage the tank? If I drain the tank what about any residual nasties left behind wont they dry out.
All replies will be greatly appreciated.


Brad N1VWD


Yesterday is history, tomorrow is a mystery and today is a gift.

M GO BLUE

Southgate, MI

Senior Member

Joined: 01/29/2001

View Profile


Offline
Posted: 09/14/11 07:00am Link  |  Print  |  Notify Moderator

Flush the black tank as best as you can and drain completely...then pour about 1/4 gallon of RV antifreeze into the tank to keep the drain seal moist...then close the toilet and dump in enough the keep the toilet seal covered with RV antifreeze




2005 Chevy Silverado 3500 dually CC/LB Duramax/Allison
2008 Jayco Designer 35RLTS fifth wheel
Onan 5500W Marquis Gold gas generator (HGJAB - 1038D)

downtheroad

Pacific Northwest

Senior Member

Joined: 02/18/2003

View Profile



Posted: 09/14/11 07:06am Link  |  Print  |  Notify Moderator

We don't have 'Vermont' winters, but it still does freeze from time to time.
I really give the black tank a good flushing and then add about a gallon of water and about 1/2 gallon of rv anti-freeze. Just enough to cover the bottom of the tank and get up against the valve...
This keeps any left over solids from becoming 'real solid' and protects from freeze damage.

Remember, there is plenty of room in an empty tank for water to expand.

In 4 rigs and many many winters this has worked great.


"If we couldn't laugh we would all go insane."
GMC Duramax LBZ
Komfort
Reese Dual Cam HP
Our Rig Picture...CLICK HERE



korbe

Northern California

Senior Member

Joined: 11/20/2009

View Profile


Offline
Posted: 09/14/11 07:12am Link  |  Print  |  Notify Moderator

I will drain and flush it out a couple of times - the normal process after a HARD campin' trip. It sits there primarily dry for 6 months. Small amounts of frozen water will not damage a tank. If you are worrying about solid buildup, get rid of it before winterizing, IMHO.


2004 F250 SD PSD
2004 Crossroads Cruiser CF25RS


nelson

Clio,Mi USA

Senior Member

Joined: 07/01/2002

View Profile



Good Sam RV Club Member

Offline
Posted: 09/14/11 07:17am Link  |  Print  |  Notify Moderator

I drain mine and keep the valve open all winter or untill I head south.


2002 Damon Challenger 348 Ford V10
Blue Ox Auto Stop and Aventa II Tow Bar
2001 Ford Sport Trac with Remco Driveshaft Disconnect

rvten

Crossville,TN

Senior Member

Joined: 11/30/2000

View Profile






Posted: 09/14/11 07:22am Link  |  Print  |  Notify Moderator

When we lived in WI. I just flushed out the black tank and left it set till spring. Never had a problem.


Tom & Bonnie
Crossville, TN.
Aspect 29H 2008 Type C
Ford Flex SEL 2010
There is NO B+


DavidP

Raleigh

Senior Member

Joined: 09/13/2006

View Profile



Good Sam RV Club Member

Offline
Posted: 09/14/11 09:59am Link  |  Print  |  Notify Moderator

skipnchar wrote:

kind of like a pop sickle but won't damage anything. Good luck / Skip


You win the funny line of the day award.

skipnchar

Topeka or somewhere else

Senior Member

Joined: 12/17/2003

View Profile



Posted: 09/14/11 08:08am Link  |  Print  |  Notify Moderator

You are absolutely correct about NEVER allowing a black tank to remain empty. No matter how well you flush the tank it will always have some solids remaining and they can cause odors and clogs if allowed to dry out and turn to stone. I use a mixture of half water and half antifreeze in mine each winter. It turns to a semi solid, kind of like a pop sickle but won't damage anything. wouldn't cost that much more to use all antifreeze. I would think that it wouldn't be necessary to use any more than a couple or three gallons however. Main thing is to keep the floor of the tank flooded.
Good luck / Skip


2011 F-150 HD Ecoboost 3.5 V6. 2550 payload, 17,100 GCVWR -
2004 F-150 HD (Traded after 80,000 towing miles)
2007 Rockwood 8314SS 34' travel trailer

US Govt survey shows three out of four people make up 75% of the total population


mojoroo

Midwest

Full Member

Joined: 08/23/2011

View Profile


Offline
Posted: 09/14/11 10:07am Link  |  Print  |  Notify Moderator

ah yes a poopsickle!!!

2oldman

Moses Lake

Senior Member

Joined: 04/15/2001

View Profile


Online
Posted: 09/14/11 10:29am Link  |  Print  |  Notify Moderator

Black tank flush winterize

Leave tanks empty?

Water in black after empty?

This Topic Is Closed  |  Print Topic  |  Post New Topic  | 
Page of 2  
Next

Open Roads Forum  >  Beginning RVing

 > Winterize black water tank
Search:   Advanced Search

Search only in Beginning RVing


New posts No new posts
Closed, new posts Closed, no new posts
Moved, new posts Moved, no new posts

Adjust text size:

© 2014 RV.Net | Terms & Conditions | PRIVACY POLICY | YOUR PRIVACY RIGHTS