Sunline RV Forum
Sunline User Photos

Go Back   Sunline Coach Owner's Club > Technical Forums > Repairs and Maintenance
Click Here to Login

Join Sunline Club Forums Today


Reply
 
Thread Tools Search this Thread Display Modes
Old 04-23-2009, 12:46 PM   #1
Junior Member
 
Join Date: Apr 2009
Posts: 2
SUN #834
david92076
Holding Tank Dilemma

I'm new to all this trailer responsibilities as I am upgrading from a pop-up. Anyways, I went to dump the holding tanks and it seemed both the grey and the black came out from one valve (meaning the black tank valve). Is there any suggestions on what could be going on? Seems to be not a common thing and I got people scratching their heads on this one
__________________

__________________
david92076 is offline   Reply With Quote
Old 04-23-2009, 01:27 PM   #2
Senior Member
 
MACK C-85's Avatar
 
Join Date: Sep 2006
Location: Maryland
Posts: 1,111
SUN #64
MACK C-85 is an unknown quantity at this point
What unit do you have?

Sounds strange that there would only be one valve. On our T-276-SR the gray valve handle is way up high next to the frame and is extremely easy to miss if you don't know where it is. It's about five inches above the black handle, is a pain to operate, and can result in some nasty scratches from the siding edges if you aren't very careful.

Also, the valves are actually located on the tank outlets and operated by long rods attached to the handles. This keeps the pipes dry to prevent freezing.
__________________

__________________

2004 Dodge Ram 2500 Club Cab 4x4 CTD
2007 Sunline Solaris T-276-SR: Misty Blue/Cherry
2001 Dodge Ram 1500 Reg Cab 4x4 OFF-ROAD
MACK C-85 is offline   Reply With Quote
Old 04-23-2009, 01:41 PM   #3
Junior Member
 
Join Date: Apr 2009
Posts: 2
SUN #834
david92076
hold tank

I have a 1990 sunline TT 24'. someone else had mentioned the grey valve could be higher, but both valves are right by the main. The only logical explanation is because there were other changes from previous owner is they installed the bottom valve and didn't remove the top valve. when I get to the trailer, I'm going to open the grey valve and turn the water on to at least make sure its not clogged. also, the grey valve is the wider ones, could that be the black water? haha, from the advice my fellow campers are giving, they've confused me
__________________
david92076 is offline   Reply With Quote
Old 04-23-2009, 02:23 PM   #4
Senior Member
 
Steve Collins's Avatar
 
Join Date: Apr 2007
Location: New York
Posts: 1,846
SUN #264
Steve Collins is an unknown quantity at this point
David,

If you have two separate holding tanks, gray and black, then the gray water drain line from the tank to the fitting for the dump connection is 1.5" ID plastic pipe. The black water drain line is 3" plastic pipe, same as in most homes. If they are black, they are likely ABS. If they are white, they should be PVC.

Anyway, trace them both from the dump fitting back to their respective tanks. Somewhere along the way there should be a slide valve for each. On some of the newer trailers, the dump valves are way under the TT and are operated by a long rod.

However on older units, the dump valves were usually fairly close to the final dump fitting where stinky slinky connects. On my '99 2453, the gray valve is just to the left and the black valve is just to the right of the dump fitting:


If the system has been modified, it is possible that they plumbed everything to a single valve. That is not good as there are times where you might want to leave the gray side open such as when you're in a full connection campsite for an extended period. Also, it is a very good idea to be able to dump just the black first and then the gray which acts as a bit of a rinse for your drain hose and ensures that all solids are moved out of the hose before you disconnect and rinse it.

It is also possible that the gray drain line is completely clogged. Fixing that is not difficult. But don't use draino or any other unclogging chemicals.

What would be best is if you could take some pics of what you have and post them here so that we can see exactly what you are describing.
__________________

'12 F250 4x4 Super Duty PowerStroke 6.7 diesel
2011 to present: '11 Cougar 326MKS
1999 to 2011: '99 Sunline T-2453
SUN264 * Amateur Radio kd2iat monitoring 146.52
Steve Collins is offline   Reply With Quote
Reply


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
Holding tank removal,repair Capt Skup Sunline 5th Wheels 1 06-06-2009 08:11 AM
Holding tank capacities rduswalt Sunline Que 4 01-31-2009 09:15 AM
Installing Holding Tank Rotary Sprayers (with pics) JohnB Modifications 17 09-26-2008 06:42 PM
Holding Tank Indicator question JohnIL Sunline Travel Trailers 2 06-18-2008 06:38 PM
painting straps holding water tank under T2553 Gimmie66 Repairs and Maintenance 12 03-11-2008 07:33 PM



Disclaimer:

This website is not affiliated with or endorsed by Sunline RV or any of its affiliates. This is an independent, unofficial site.


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 09:37 PM.