Thread Tools Display Modes
Old 02-09-2014, 02:15 PM   #1
Junior Member
Join Date: Dec 2013
Posts: 17
Fussy Black Tank Drain

I bought a used '11 Flagstaff 8526RKWS last in Dec (1,250 miles away from where I am now so returning to the dealer is not an option) with a fussy black tank valve. I couldn't get it to close, and I noticed evidence of previous work when I cut away the waterproofing cover on the undercarriage. The shaft that opens/closes the valve is about 6' long (why would anyone design something like that) and has become bent. The only solution I can think of is to replace that shaft and reseal the waterproofing, knowing it will bend again sooner or later. Anybody else have a similar problem with this or other models? What are my chances for success of "brothering" a shorter shaft in the bent area. Thanks for any suggestions.

The_Painting_Teacher is offline   Reply With Quote
Old 02-09-2014, 02:37 PM   #2
Senior Member
Ford Idaho's Avatar
Join Date: Sep 2013
Location: Idaho
Posts: 9,003
Why not leave that one open and alone and install a new one near the end where you can control it better?

2016 F350 6.7L LB CC Reese 28K 2014 Chaparral Lite 266sab
"Those who would give up essential Liberty, to purchase a little temporary Safety, deserve neither Liberty nor Safety." 2014 19 days camping 2015 17 days camping201620 days camping
Ford Idaho is online now   Reply With Quote
Old 02-09-2014, 02:45 PM   #3
Senior Member
Join Date: Oct 2013
Posts: 342
What Ford Idaho said would likely be the cheapest and easiest fix.

If you want to retain the same 6' long rod, I would replace the bent rod them weld in some round tubing "guides" for it to go through so it isn't as flex when you push/pull on it.
2001 Ford F250 7.3l converted to F350 specs
2014 Flagstaff 8528RKWS
2 - 2006 model year Border Collies
Mtelkman is online now   Reply With Quote
Old 02-09-2014, 03:17 PM   #4
Senior Member
BigTJohn's Avatar
Join Date: Oct 2011
Location: Palm Coast FL
Posts: 746
If it is the cable and housing you are talking about, it needs to be tied down about every 18" as per install instructions. Not always done at the factory (never). A new cable is exactly that long and is not cut to a workable length. You can get a new cable (maybe $15) and cut it to length and get it to function way better. Hope this helps a little.
Brenda and John
'14 Ram 3500 MCSB 6.7L HO PullRite 16K S/G, Grey Columbus 320RS Camped '14 - 146 days/'15 - 196 days
USN-EOD(Ret), Master Chief, 30 yrs,
Master Blaster of the Navy
BigTJohn is offline   Reply With Quote
Old 02-09-2014, 03:23 PM   #5
Join Date: Sep 2012
Location: CA
Posts: 342
I have never seen what you have but could you sleeve the shaft with length of pipe. If you fit the pipe tight to valve and to where the handle mounts the pipe would be stationary while the shaft would slide through without being able to bend.
As for a second valve, I think I would worry the length of pipe would fill with solids. Grey water would work for sure but black water I would worry.
Good luck
2011 Wildwood T26BHXL
2004 Yukon XL Denali
43yrs of camping; one lucky guy
YoungKopernik is offline   Reply With Quote

black, black tank, drain, tank

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

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 -5. The time now is 04:40 PM.