Dump valve rearrangement? - Fiberglass RV


Reply
 
Thread Tools Search this Thread Display Modes
 
Old 10-19-2010, 08:11 PM   #1
Junior Member
 
Name: Joe
Trailer: Scamp 16 - floor plan #4
Minnesota
Posts: 27
Registry
Dump valve rearrangement?

Hello, everyone - I don't know what the usual black water dump configuration looks like for a 1988 Scamp 16, but in my case, the dump fitting comes straight down from the tank, and not very far down, either, which makes it really difficult to get at, as it's pretty well hidden under there - not only is it hard to see what I'm doing when attaching the hose, but I often wind up having to kneel in places where I'd rather not kneel in order to get at the darn thing. The more usual thing on RV's in general, I think, is a dump valve that comes out horizontally from under the trailer so that it's easier to get at.

1) Is it possible/easy to attach a permanent elbow fitting in my situation to bring the pipe out horizontally?

2) If so, is it also feasible to move the dump valve out to the end of that so the valve is easier to get at as well as the fitting?

If it was possible to do part 2, I'd worry that the fittings might not tolerate the stress of opening and shutting the valve, as I'd think that it would be a lot less well supported out on the end of the elbow, so leaving it right under the trailer where it is now might be the way it has to be if #1 winds up working out - just having an elbow extension would still make it easier to deal with.

I'm the kind of do-it-yourselfer who hates paying people to do mechanically simple things for me, but even so I'm picturing perhaps farming this whole job out to an expert - even if I go that route, it would be good to hear from anybody who's done anything like this, or had it done.

Thanks in advance for any input!

- Joe
__________________

__________________
Joe in MN is offline   Reply With Quote
Old 10-19-2010, 08:39 PM   #2
Senior Member
 
Donna D.'s Avatar
 
Name: Donna D
Trailer: Escape 5.0 TA, 2014
Oregon
Posts: 24,433
Well, that's different. The black valve/gate on my 1988 16' Scamp is configured the same as the gray water.... angle is the same, etc.

Once again, it's dark outside or I'd take a picture. I won't be able to until Saturday, but if no one provides one for you I'll do it then
__________________

__________________
Donna D.
Ten Forward - 2014 Escape 5.0 TA
Double Yolk - 1988 16' Scamp Deluxe
Donna D. is offline   Reply With Quote
Old 10-19-2010, 08:41 PM   #3
Senior Member
 
floyd's Avatar
 
Name: Floyd
Trailer: 2004 13 ft Scamp Custom Deluxe
IllAnnoy
Posts: 6,046
Registry
Quote:
Originally Posted by Joe in MN View Post
Hello, everyone - I don't know what the usual black water dump configuration looks like for a 1988 Scamp 16, but in my case, the dump fitting comes straight down from the tank, and not very far down, either, which makes it really difficult to get at, as it's pretty well hidden under there - not only is it hard to see what I'm doing when attaching the hose, but I often wind up having to kneel in places where I'd rather not kneel in order to get at the darn thing. The more usual thing on RV's in general, I think, is a dump valve that comes out horizontally from under the trailer so that it's easier to get at.

1) Is it possible/easy to attach a permanent elbow fitting in my situation to bring the pipe out horizontally?

2) If so, is it also feasible to move the dump valve out to the end of that so the valve is easier to get at as well as the fitting?

If it was possible to do part 2, I'd worry that the fittings might not tolerate the stress of opening and shutting the valve, as I'd think that it would be a lot less well supported out on the end of the elbow, so leaving it right under the trailer where it is now might be the way it has to be if #1 winds up working out - just having an elbow extension would still make it easier to deal with.

I'm the kind of do-it-yourselfer who hates paying people to do mechanically simple things for me, but even so I'm picturing perhaps farming this whole job out to an expert - even if I go that route, it would be good to hear from anybody who's done anything like this, or had it done.

Thanks in advance for any input!

- Joe
I have a friend who invented what he called a "potti-plus"...
Keeping the original dump valve, he added several feet of pipe under his trailer, with two lengths of pipe making a "U" turn and terminating in a second dump valve and hose fitting. This adds several gallons to his blackwater tank capacity and serves as a "reserve tank".
When his blackwater tank gets full... he can put off a trip to the dump station by simply pulling the first dump valve,no muss no fuss, This fills his "potti-plus" reserve which will then be handled at the dump staion in the normal manner, with easy access when it counts.
__________________
floyd is offline   Reply With Quote
Old 10-19-2010, 08:56 PM   #4
Senior Member
 
Carol H's Avatar
 
Name: Carol
Trailer: 22' Airstream Formerly 16' Scamp
British Columbia
Posts: 11,731
Registry
Funny my 92 is as Joe discribes his. The black water is straight down. If Donna's is set up the same as the grey water's then I don't see why you can't change the black water to match. Suspect though that some might argue it is better to have the black water on a straight down without any angles where TP could clog up. I'm also wondering if perhaps its better to have it a bit higher for clearance. In theory the front of the trailer should be down from the back when towing. Hummmm.
__________________
Carol H is offline   Reply With Quote
Old 10-19-2010, 10:29 PM   #5
Junior Member
 
Name: Joe
Trailer: Scamp 16 - floor plan #4
Minnesota
Posts: 27
Registry
Thanks for the feedback, folks - I just went out there and took some blind nighttime flash pics under the trailer, and I realize now that I can see a lot more of what's up down there that way than I could see while kneeling and grunting under the trailer in the daytime... Looks like the pipe just threads right into the bottom of the tank, so I'm thinking that perhaps a whole new elbow and valve could be fabricated and installed relatively easily. I think there'd be enough ground clearance for an elbow that would clear the side of the trailer, but I may need to assess that in the daytime.

I've got no grey water tank, so nothing to compare the black water dump to.

Anyway, here's the picture of what I've got. By the way, if anybody ever needs any advice on refurbishing a Sealand toilet, I just finished rebuilding my 711-28 - those things are actually pretty simple to tear down and rebuild with a new parts kit.

So, if anybody has any experience with replacing the nether regions of the system, I'd love to hear about it - thank you!

Oh, right, the straight-through setup must be somewhat better for clearing the system than a right angle would be, especially with the smaller dump volume that us egg types have compared to the land yacht people, so I suppose that's a factor worth considering too...
Attached Thumbnails
IMG_4139small.jpg  
__________________
Joe in MN is offline   Reply With Quote
Old 10-20-2010, 12:17 AM   #6
Senior Member
 
Carol H's Avatar
 
Name: Carol
Trailer: 22' Airstream Formerly 16' Scamp
British Columbia
Posts: 11,731
Registry
Last week-end the seals had to be replaced on my black water tank. When you unscrew the 4 bolts the valve, lower flange and bayonet fitting and cap will come off but the upper flange will stay attached to the pipe coming down from the toilet - or at least on mine it did. I think it is glued to the pipe from the toilet.

If you go to the Scamp website in the plumbing parts section they show all the parts you will need including the elbow you wish to add. Pretty sure you can buy all these parts pretty well anywhere. The problem I suspect you will have is getting the upper flange off the pipe that screws into the toilet. If its glued on it may have to be cut off and may not be reusable so you may have to replace the whole valve/flange unit and the pipe coming down from the toilet as well. I'm not sure on that so check around you may find an RV store that sells just the upper flange part but I'm not sure you have enough exposed pipe left coming down from the toilet to connect the new elbow to if you have to cut the upper flange off it. It may be less trouble to start over with all new parts then you would know your good for at least another 15 years or more.

The order in which the parts would go back on appears to be: screw in pipe from toilet, elbow, valve/flange unit, bayonet unit and cap. Give Scamp a call and confirm that though! :-)
__________________
Carol H is offline   Reply With Quote
Old 10-20-2010, 12:41 AM   #7
Senior Member
 
Carol H's Avatar
 
Name: Carol
Trailer: 22' Airstream Formerly 16' Scamp
British Columbia
Posts: 11,731
Registry
Floyd, your friends approach is an intreasting. I wonder though how he cleaned out the extra length of pipes, did he ever tell you how he did that?

One of the good things about having a short direct system is it is really simple to clean out the whole system from below or inside with just a toilet wand attached to a hose. Or if you want to get serious about it you can use an old fashioned long type toilet brush with a long metel handle you can bend and get into most of the tank from down below. I know the problem of the holding tanks being on the small side so I purchased a porta tote for dumping into when a direct dump is not an option. I have ended up using the porta tote more often to drain the grey water than the black tank though.
__________________
Carol H is offline   Reply With Quote
Old 10-20-2010, 12:59 AM   #8
Senior Member
 
Perry J's Avatar
 
Name: John
Trailer: 16' Casita
California
Posts: 975
Send a message via AIM to Perry J Send a message via Yahoo to Perry J
Hi, Joe.
I have a 2004 scamp and the black water drain has an elbow and the valve and outlet is horizontal, but it's much closer to the floor of the trailer. I guess that's to give it more ground clearance.
I still have to kneel where we would rather not. I finally wised up and keep some disposable rubber gloves and a piece of old tarp in my storage box.
John
__________________
Perry J is offline   Reply With Quote
Old 10-20-2010, 05:31 PM   #9
Junior Member
 
Name: Joe
Trailer: Scamp 16 - floor plan #4
Minnesota
Posts: 27
Registry
This is great, thanks everybody! Tons of good info and ideas here. I first discovered this website while I was looking for a used Scamp, and I could tell that once I found me a trailer, this would be an excellent place to get this kind of help.
__________________
Joe in MN is offline   Reply With Quote
Old 10-20-2010, 07:52 PM   #10
Senior Member
 
Joe Z's Avatar
 
Trailer: Casita
New River AZ
Posts: 1,043
Joe....
I have the exact same setup on my 94' Casita except the dump pipe on mine is on the inside of the frame. I see your handle faces forward but You could easily take those four bolts off and rotate it to face "Out" and then just simply clip an EL to those tabs down bottom but with the lower ground clearance your liable to hit something and crack your black tank...... ask me how i know that! TWICE
__________________
Joe Z is offline   Reply With Quote
Old 10-20-2010, 07:58 PM   #11
Junior Member
 
Name: Joe
Trailer: Scamp 16 - floor plan #4
Minnesota
Posts: 27
Registry
Yikes! Sounds like I'll have to consider this REALLY carefully.
__________________

__________________
Joe in MN 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
dump hose connector... Herb P Care and Feeding of Molded Fiberglass Trailers 3 07-05-2007 02:56 PM
My dump valves work! Gina D. Plumbing | Systems and Fixtures 20 02-24-2007 04:09 PM
Relocated dump valve Mike Taylor Modifications, Alterations and Updates 3 11-14-2005 03:26 AM
How to dump into (and out of) blue tote tank? Legacy Posts Care and Feeding of Molded Fiberglass Trailers 14 04-30-2003 04:05 PM
Public Dump Sites Legacy Posts Care and Feeding of Molded Fiberglass Trailers 1 04-03-2003 05:04 PM

» Upcoming Events
No events scheduled in
the next 465 days.
» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 09:00 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.