RV News RVBusiness 2021 Top 10 RVs of the Year, plus 56 additional debuts and must-see units → ×

Go Back   Keystone RV Forums > Keystone Fleet | Keystone RV Models > Travel Trailers
Click Here to Login

Thread Tools Display Modes
Old 10-25-2020, 03:29 PM   #21
Join Date: May 2020
Location: Lady Lake
Posts: 39
I would guess "typical metal pipes" to be Copper or Galvanized Iron.

2010 Cooper Canyon 252FWRLS
2000 F250 SC 7.3 Turbo Diesel
2003 Roastrek 190
RoadToad is offline   Reply With Quote
Old 10-25-2020, 08:28 PM   #22
Tooth Ferry
Join Date: Oct 2016
Location: PellCity,Alabama
Posts: 47

Don't forget washing machine lines.

Tooth Ferry is offline   Reply With Quote
Old 10-26-2020, 06:37 AM   #23
Junior Member
Join Date: Feb 2018
Location: North Myton Bench
Posts: 19
I blow out all the lines until they're dry, no moisture in the line whatsoever. I also blow the flush line out, then drain the tanks. My water pump is easy to get to, so I just unhook the connections, put a dry towel under the outlet and run it for a couple seconds. dump a pint of RV anti-freeze down each drain, including the toilet. I live in an area where the temperature can get well below zero F. I've been doing this for years. No problems.

Of course every RV is different.
DDuncan51 is offline   Reply With Quote
Old 10-26-2020, 01:03 PM   #24
Senior Member
Maineiacs's Avatar
Join Date: Nov 2019
Location: Arundel
Posts: 118
Originally Posted by kenhigdon View Post
Thanks for the reminder on the black tank flush.

Glad it helped someone. It was new to me, so I thought it was worth mentioning.
2018 Cougar 32RLI
2017 F-250 4x4 Crew Cab
Maineiacs is offline   Reply With Quote
Old 10-26-2020, 08:14 PM   #25
Senior Member
Join Date: Oct 2019
Location: St Charles
Posts: 119
I am sure glad I read this. I brought the RV home to re organize and to winterize. I missed a few things that I will do tomorrow. I missed the black water tank rinse line and the low point drains. Its a good thing its still in the driveway.

I just blow the water out and put rv anti freeze in the traps.

2019 Cougar 361RLW
2019 Ram 3500 diesel Aisin 4.10 dually
Jim2366 is offline   Reply With Quote
Old 10-27-2020, 07:48 AM   #26
Senior Member
Join Date: Apr 2020
Location: Canton
Posts: 169
Originally Posted by ewbldavis View Post

I'm not clear on how you "let in" a "little antifreeze" into the water heater. How do you know how much you let in unless you drain it? If you drain then what's the point?
I'm not worried about the water heater, but the line going from wet bay to water heater. I ran pump with antifreeze like 10 seconds, then flipped valve to "bypass". Maybe not a super scientific method, but worth a shot and I saw a little pink at WH drain.

I use low points and compressor before filling with antifreeze. For $3/gal. it's cheap insurance in case I didn't get it all out. Regardless of your methods, sad time when we shut them down for 6 months!


2019 GMC Sierra 2500HD 6.0L
2020 Cougar 32BHS
ewbldavis is offline   Reply With Quote
Old 10-28-2020, 04:31 PM   #27
Junior Member
Join Date: Jun 2020
Location: Milan
Posts: 10
Forgot to turn bypass and got a little antifreeze in HW heater. Will it hurt anything?? Plug is out but can still see some pink in it.
John Prifogle
2010 Keystone Cougar 26bhs
2019 Toyota Tundra Crewmax 5.7liter
JohnnyP is offline   Reply With Quote
Old 10-28-2020, 04:57 PM   #28
Senior Member
RagingRobert's Avatar
Join Date: Mar 2018
Location: Ajax
Posts: 158
No it won't hurt anything. I would just rinse out the tank with a hose if you can.
RagingRobert is offline   Reply With Quote
Old 10-29-2020, 06:31 AM   #29
Senior Member
Join Date: Dec 2018
Location: Northville, NY
Posts: 246
Originally Posted by Sarge2 View Post
Now you got me wondering... I pulled the HW drain, shut the bypass valves, blew out the lines from the city water line connection, then pumped antifreeze thru the system via the pump to all the faucets, outdoor kitchen and shower... never thought about the black tank flush line.... should I just blow that out or should I add antifreeze to that too? Can I just gravity feed antifreeze into it with short garden hose connection after I blow it out? Never even considered it until now.. the rest of the TT is done with the exception of that line... always something...
The only issue with the b/t flush is the back flow preventer that is usually up under the bathroom sink. If there was water trapped in that and it froze it could crack that plastic fitting. I just blow it out with air.
I don't put any antifreeze in w/h either, just drain and set by pass. I just blow out all the water lines and only put antifreeze in the P-traps. If there is a little water left in a pipe or w/h it won't harm anything. The problem is when a line is "full" of water and it freezes it expands and that's when things break. I have never done anything with the water pump and I'm thinking I have just been lucky. I will now pump a little antifreeze into the pump just to be safe. Also I will cycle the ice maker a couple time with the air connected as I really don't want antifreeze in there.

Jim & Deb
49 years happy
2018 Montana 3731FL
2017 F-350, psd,4x4, lariat, c-c, swb, srw
jimborokz is offline   Reply With Quote

cougar, winter, winterizing

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
Forum Jump

Powered by vBadvanced CMPS v3.2.3

This website is not affiliated with or endorsed by the Keystone RV Company or any of its affiliates in any way. Keystone RV® is a registered trademark of the Keystone RV Company.

All times are GMT -8. The time now is 05:15 AM.

Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2020, vBulletin Solutions, Inc.