Go Back   iRV2 Forums > MOTORHOME FORUMS > Class A Motorhome Discussions
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 06-23-2016, 08:34 PM   #1
Senior Member
Join Date: Apr 2015
Location: Rogers, AR
Posts: 254
Accumulator Tank, you have the parts

My pump is in a bay under the head of the bed and cycled constantly even with just a trickle of water. To help silence the pump I suspended the pump with straps from an overhead frame in the bay. The pump is suspended in place by the two braided water lines and straps. It's not solidly attached at all. That helped a lot with the noise. The constant cycling can't be good for the pump or switch. I needed a bigger accumulator tank.

The water heater has a small air chamber that functions as an accumulator but the air is quickly absorbed by the water and has to be recharged. I have removed the drain plug and put in a nipple plug, hose, screw on end cap and shrader valve. This lets me add air easily and drain the tank easier than getting wrenches to remove the plug.

The Sureflow tank has an internal bladder which solves the absorption problem and has 42cu. in. capacity.

An accumulator tank can be any size or shape, just needs to be attached to the water system and hold pressure.

I add water by gravity or city water connection. If I empty my white water hose, connect it to the city water connection, defeat the backflow valve and cap the end, my 50ft. 5/8" hose functions as a 184 cu. in. accumulator tank rolled up in the storage bay. Now a good bit of water will flow before the pump cycles on and to connect to city water, just pull the hose out and take the cap off.

To defeat the valve, it could be removed, but I just inserted a screened washer in the line to hold the valve open. A screened washer like is used in clothes washer hoses. The crowned screen holds the valve open. I gave this a try this afternoon and all worked fine. We'll give it a real test next week when we go to Lake of the Ozarks.

2015 Itasca Sunstar 36Y w/2012 CRV toad
alank 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 06-24-2016, 12:50 PM   #2
Senior Member
BFlinn181's Avatar

Gulf Streamers Club
Join Date: Jan 2012
Location: Cincinnati
Posts: 12,629
The pump coming on could be the result of a leaking back flow, or one way valve either in the pump or attached to it. When the pump builds up pressure, the leak is allowing water to back flow into the water tank.

I don't think the air in the water heater is getting absorbed fast enough to cause the problem.

Your water hose is expanding and then holding the pressure a little longer to lengthen the time before the pump comes on again to build up pressure. Replace the one way valve or add another one between the pump and the tank, I bet the cycling stops.


Bob & Donna
'98 Gulf Stream Sun Voyager DP being pushed by a '00 Beetle TDI
BFlinn181 is offline   Reply With Quote
Old 06-26-2016, 01:30 PM   #3
Senior Member
mrt_1111's Avatar

Fleetwood Owners Club
Ford Super Duty Owner
iRV2 No Limits Club
Join Date: Oct 2012
Location: Colorado Springs, CO
Posts: 701
Could you, would you post a picture of your suspended water pump. Thank you.
Mark Taylor
1999 Bounder 32H Ford V10, 2012 Ford Focus, Pretty DW, 2 cats. Retired USAF
mrt_1111 is offline   Reply With Quote
Old 06-26-2016, 04:49 PM   #4
Senior Member
Join Date: Apr 2015
Location: Rogers, AR
Posts: 254
Here's the picture of the pump suspended. The pump touches nothing to transfer it's vibration to the coach. The only vibration transferred is by the water lines, and there is some, but only a fraction of what there was when it was attached to the wall of the wet bay.

The second picture is of the 50' hose attached so it functions as an accumulator tank.
Attached Thumbnails
Click image for larger version

Name:	IMG_0809 (2).jpg
Views:	27
Size:	234.6 KB
ID:	131372   Click image for larger version

Name:	IMG_0810 (2).jpg
Views:	28
Size:	276.0 KB
ID:	131373  

2015 Itasca Sunstar 36Y w/2012 CRV toad
alank is offline   Reply With Quote

parts, tank

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
Water Accumulator Tank AFChap RV Systems & Appliances 5 09-01-2012 02:02 AM
Potable System Accumulator Tank Peter_Crowl Vintage RV's 4 09-08-2010 11:03 AM
Stainless Steel Accumulator Tank kketterling Monaco Owner's Forum 1 03-07-2010 12:41 PM
Accumulator Tank GaDawgFan Winnebago Industries Owner's Forum 5 05-24-2007 07:07 AM
Shurflo accumulator tank question. arthurval Winnebago Industries Owner's Forum 8 09-19-2005 02:56 PM

» Virginia Campgrounds

Reviews provided by

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2015 Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 09:54 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.