Go Back   iRV2 Forums > MOTORHOME FORUMS > Class A Motorhome Discussions
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
Thread Tools Search this Thread Display Modes
Old 08-20-2016, 09:04 AM   #1
Junior Member
Join Date: Aug 2016
Posts: 2

First let me state that I am new to RVing and also new to this forum, or any forum for that matter so if I commit a faux pas please have patience with me. We have recently purchased a 1998 Endeavor diesel pusher. I am trying to learn all the ins and outs of winterizing the water system. I believe I have found answers to all of my questions except one. I intend to blow the water lines out with compressed air. I have determined how to empty all the lines including the ice maker. The only thing I haven't found is how to clear the water pump. The pump is a diaphragm pump and you cannot blow through the pump. Possibly you can run the pump with air pressure on the system? I have also considered just removing the pump after blowing out the system. If anyone can enlighten me I would appreciate it. Thanks.

hallsm27 is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 08-20-2016, 09:11 AM   #2
Senior Member
Join Date: Jun 2016
Posts: 262
I disconnect the line to the water pump and stick it into a jug of RV antifreeze and turn the pump on. On the new coach there is a port is the access bay to do just that plus a fitting for the air hose. Some things on a new coach are nice.

Jim & Roy Davis
2016 Hurricane 31S
1961 Chev Rampside toad
Beau388 is offline   Reply With Quote
Old 08-20-2016, 07:35 PM   #3
Senior Member
jacwjames's Avatar
Monaco Owners Club
Join Date: Jun 2014
Posts: 4,742
Depending on what type of pump you have it may have a quick connect type fitting like mine. I just disconnect the line and let the water drain out. I will also burp the pump a couple times while blowing the lines. I connect my air line to the fresh water hook up so when you run the pump it will let air blow through it.

I have gravity drains on both hot and cold that will get most of the water out of the system, I open those valves and then all the faucets. I also pull the plug on the water heater and drain it. After everything drains I'll close all the valves, hook up the air and then go through and open each faucet individually and keep rotating until no more water is blown out. Also remember to drain the Washer/Dryer, mine has a drain and the lint screen. Also flush the toilet several times to get water out of those lines and also the ice maker line. I also make sure the ice maker water solenoid valve is clear of water. I'll then pour RV antifreeze down the Pee traps.

I've used this general method on 2 RV's over 19 years and never had a problem.
Jim J
2002 Monaco Windsor 38 PKD
2005 Jeep Grand Cherokee w/5.7 Hemi
jacwjames is offline   Reply With Quote
Old 08-21-2016, 06:03 AM   #4
Junior Member
Join Date: Aug 2016
Posts: 2
Thank you. I thought running the pump for a short period with air pressure would work but not sure.
hallsm27 is offline   Reply With Quote


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

Similar Threads
Thread Thread Starter Forum Replies Last Post
Winterizing & Un-Winterizing michguy Class A Motorhome Discussions 5 11-01-2012 02:19 PM
Winterizing with the winterizing system Ripperfarms Winnebago Industries Owner's Forum 7 10-09-2012 06:54 PM
Winterizing 2004 Sightseer r4etired MH-General Discussions & Problems 4 12-22-2008 03:09 AM
Winterizing Water System navyblue RV Systems & Appliances 12 12-21-2008 08:35 PM

» Virginia Campgrounds

Reviews provided by

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 01:56 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.