Reply
 
Thread Tools Display Modes
Old 11-01-2011, 04:36 PM   #1
Member
 
Join Date: Aug 2010
Posts: 82
Winterizing Methods: blowout or pump-in?

There seems to be two often talked about methods for winterizing the water system in a camper.

Blowout Method

  1. A compressor is connected to the "city water" connection
  2. air pressure (30-40 psi) is used to remove water from the lines.
  3. Hot water tank is bypassed and drained
  4. "low-point" water line caps are opened
  5. fresh water tank is drained.
  6. Anti-freeze is poured into drains
  7. If present, water filter container is emptied
  8. A small amount anti-freeze is cycled through the water pump to protect its internals.
Pump-In Method

  1. Hot water tank is bypassed and drained
  2. if present, water filter container is emptied (bypassed?)
  3. Anti-freeze is pumped through the entire sysetm
  4. Anti-freeze is poured into the drains (though this can be accomplished while completing #3.
Some seem to preach blowout and other swear by pump-in, thoughts?

Is the full pump-in method really necessary? Seems like overkill to me.

I have also seen the two methods combined in which the anti-freeze is blown-out after it has been pumped-in.
__________________

__________________
TV: 2008 Ford Expy
Camper: 2012 Rockwood Roo 233S
12V: 2 x Group 27 plus Honda Ex 700c Genset
BackInAction is offline   Reply With Quote
Old 11-01-2011, 07:55 PM   #2
Grape Escape
 
Join Date: Sep 2006
Location: Southern Ontario
Posts: 774
10 yrs no problems
1. bypass water heater and drain by removing anode rod
2. blow or vacuum water lines with shop vac or blow with compressor by disconnecting at pump outlet starting closest to furthest(outside shower, inside shower sinks and toilet)
3. reconnect water pump and if equipped with winterizing suction line run pump to draw AF from gallon jugs(apprx 2) and run each tap from furthest to closest till pink stuff appears
4.pour some AF in drain traps
5 open fresh water tank drain
6. shut pump off and leave all faucets and taps open
7. make sure all waste holding tanks are empty
8. bring LCD and plazma tv's indoors
__________________

__________________
2008 Cardinal 30RKLE 5th wheel sold
2006 Rockwood 2607, 2001 Traillite
55 nights 2009, 53 for 2010
44 for 2011, 38 for 2012, 35 for 2013, 51 for 2014
dezolen is offline   Reply With Quote
Old 11-01-2011, 10:13 PM   #3
BaronBigDog
 
Join Date: Oct 2011
Posts: 12
I live in AR and the winters are not real brutal. I use the blow out method:

1. Drain your fresh water tank I normally close my drain after the tank is empty.

2 Remove water heater annode and drain. Open a hot water tap before removing the annode. It gets messy if you have residual pressure in the system. After the water heater is empty replace the annode. You can use the bypass if so desired. I don't like removing the screws on my Flagstaffs access door so I leave the bypass alone.

3. Remove the access cap and open holding tank valves. ( It is assumed that you have already purged them)

4. Install blow out connector in city water connector. I made my connector, by the way. Used a brass male hose repair kit and a male quick air hose connector. I tapped the hose connector out 1/4 NPT and threaded the quick connector in. Works great and is really sturdy. It is cheap if you have a pipe tap, but probably not cost effective if you have to buy one.

5. Connect air compressor to blow out connector. (Compressor charged with line pressure not exceeding 40 P.S.I.)

6. Open and bleed all faucets in sequence, furtherest to closest to inlet port. Don't forget the toilet.

7. Repeat the bleeding process. I have not mentioned emptying the water filter because mine is self purging. I do remove the filter element after the purging process for replacement the following season.

8. Once I am satisfied that the water is purged I remove the air supply from the adaptor. Then I remove the two drain caps on the water supply lines under the camper. I then hook the air back up to the inlet and blow those out as well. Then I disconnect the air and replace the caps.

9. Be certain to remove the shower hose from the connector on the bottom side of your faucet. They can and will freeze up. I know first hand. My older campers would drain the shower head. My current one has a check valve in the faucet and it holds water. Learned the hard way.

10.After you are satisfied that you do not have water in the distribution system pour about a pint of good anti-freeze down each drain.

11. Remove anything that might freeze from the camper and then look again. Things have a way of hiding and reminding you after the spring thaw.

12. Make certain to leave the fridge and freezer doors open. No matter how clean they are they always seem to mold over a protracted period of being tightly closed.
I also leave the faucets open.
__________________
BaronBigDog is offline   Reply With Quote
Old 11-01-2011, 10:27 PM   #4
Anacortesians
 
Join Date: Oct 2010
Location: Anacortes, WA
Posts: 1,167
I blow out all the lines. put antifreeze in the P-traps and I consider I'm done. Temps here in Anacortes rarely go below 25F even in the depths of winter and it's almost unheard of to have a high that isn't at least 34.

If you're in the regions where -40 overnight and -10 during the day is typical, maybe you need to be more rigorous. Sure glad I don't have to face that crap!
__________________
Frank and Eileen
No longer RVers or FR owners
F and E Damp is offline   Reply With Quote
Old 11-02-2011, 01:08 AM   #5
Just a member
 
kandl's Avatar
 
Join Date: Jul 2011
Location: Cool Pool, AB
Posts: 783
Did the low point drain/blowout routine and spent a little extra time ensuring the HW tank was completely empty after draining - employed an air gun to blow out the residual water sitting below the level of the anode/drain port. Poured some AF into the p-traps and and the toilet to keep the seal lubed. Removed the water filter, reinstalled the filter housing and ran the pump to purge what was left in the FW circuit - drain the filter housing. Scrutinized the process carefully because the mercury can dive to -40 in this neck of the woods.
__________________
Keith, Lori & the Wild Bunch
TT: 2011 Rockwood 8293RKSS
TV: 2009 Dodge Ram 1500 CC 4x4 (ya.. it's got a Hemi
)
kandl is offline   Reply With Quote
Old 11-02-2011, 02:07 AM   #6
Junior Member
 
Join Date: Oct 2011
Posts: 18
Air compressor size

Newbie I am. What is minimum size air compressor for winter blowout please?
Would one gallon so it? Thanks a bunch!
__________________
tomcamper is offline   Reply With Quote
Old 11-02-2011, 08:07 AM   #7
BaronBigDog
 
Join Date: Oct 2011
Posts: 12
If you don't bypass your water heater you essentially have a compressor tank of whatever volume your heater is plus the compressor. It will take a bit for the 1 gallon compressor to fill the water heater to 40 PSI, but it will work. Just let it run until the compressor kicks off and you should be able to purge your system. It may take a couple of shots to get all the air out, but I see no reason why it will not get the job done. I have three compressors, a 5 gallon being the smallest and it cycles several times to get the job done to my satisfaction.
__________________
BaronBigDog is offline   Reply With Quote
Old 11-02-2011, 10:25 AM   #8
Member
 
Join Date: Aug 2010
Posts: 82
Quote:
Originally Posted by tomcamper View Post
Newbie I am. What is minimum size air compressor for winter blowout please?
Would one gallon so it? Thanks a bunch!
I have a cheap-o $60 3/gal model (sort of like this one). As long as you can set the output pressure (30-40 psi) anything is fine, but it might take a few minutes longer while you wait for the pressure to build up between each faucet.

FWIW, I added a female quick disconnect to the end of my compressor's hose. I added a male quick disconnect to my tire output piece. And I used a hose clamp and another male quick disconnect to a short piece of old garden hose. That allowed me to leave the compressor connected to the camper's city water input while I walked around and blew out the lines.

I think you can get a female quick disconnect with 3-4 male ends in a single pack from Lowe's, Home Depot, etc. Just make sure you get the larger style of you plan to shove one end of the male connect into a garden hose. The smaller disconnects would probably need some sort of step-up adapter if you wanted to shove it into the end of a hose.


LCD TV's, thanks for the info. I would have never thought to remove it from the camper.
__________________
TV: 2008 Ford Expy
Camper: 2012 Rockwood Roo 233S
12V: 2 x Group 27 plus Honda Ex 700c Genset
BackInAction is offline   Reply With Quote
Old 11-02-2011, 10:50 AM   #9
Member
 
Join Date: Aug 2010
Posts: 82
Quote:
Originally Posted by BaronBigDog View Post
9. Be certain to remove the shower hose from the connector on the bottom side of your faucet. They can and will freeze up. I know first hand. My older campers would drain the shower head. My current one has a check valve in the faucet and it holds water. Learned the hard way.
This has me a bit confused...

Wouldn't there still be water behind the check valve? I would think as long as you leave the shower head open, or off, the water outside of the check valve would have room to expand when it freezes.
__________________
TV: 2008 Ford Expy
Camper: 2012 Rockwood Roo 233S
12V: 2 x Group 27 plus Honda Ex 700c Genset
BackInAction is offline   Reply With Quote
Old 11-02-2011, 11:05 AM   #10
Member
 
CliffP's Avatar
 
Join Date: Oct 2011
Posts: 38
aren't you supposed to run antifreeze through the shower head too?
__________________

__________________
CliffP 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



» Virginia Campgrounds

Reviews provided by




ForestRiverForums.com is not in any way associated with Forest River, Inc. or its associated RV manufacturing divisions.


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 05:14 PM.